Dwyer Instruments, Inc.

United States of America

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2025 (YTD) 1
2022 2
2020 6
Before 2020 39
IPC Class
G01L 7/08 - Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the flexible-diaphragm type 6
G01F 1/684 - Structural arrangementsMounting of elements, e.g. in relation to fluid flow 4
G01L 7/00 - Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements 3
B65D 41/06 - Threaded or like caps or cap-like covers secured by rotation with bayonet cams 2
F15D 1/02 - Influencing the flow of fluids in pipes or conduits 2
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NICE Class
09 - Scientific and electric apparatus and instruments 16
07 - Machines and machine tools 5
06 - Common metals and ores; objects made of metal 2
10 - Medical apparatus and instruments 2
11 - Environmental control apparatus 2
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Status
Pending 2
Registered / In Force 46

1.

MEMS THERMAL TIME-OF-FLIGHT SENSOR WITH CHAOTIC FLOW GENERATOR

      
Application Number US2023079928
Publication Number 2025/106075
Status In Force
Filing Date 2023-11-15
Publication Date 2025-05-22
Owner DWYER INSTRUMENTS, INC. (USA)
Inventor
  • Ma, Shilei
  • Moss, Robert Austin
  • Meuli, Jeffrey Vern

Abstract

A thermal TOF sensor includes a housing comprising an inlet, an outlet, and a fluid flow channel through which fluid flows in a flow direction from the inlet to the outlet. A MEMS thermal TOF sensor element is disposed in the fluid flow channel. A mixing insert is disposed in the fluid flow channel upstream of the MEMS thermal TOF sensor element. The mixing insert includes an inner chamber and being configured to divide fluid flow from the inlet so that a first portion of the fluid flow enters the inner chamber and a second portion of the fluid flow passes outside the inner chamber in the flow direction. The mixing insert is configured to redirect the first portion of the fluid flow outside of the inner chamber against the flow direction to mix with the second portion of the fluid flow.

IPC Classes  ?

  • G01F 1/684 - Structural arrangementsMounting of elements, e.g. in relation to fluid flow
  • G01F 15/00 - Details of, or accessories for, apparatus of groups insofar as such details or appliances are not adapted to particular types of such apparatus
  • F15D 1/02 - Influencing the flow of fluids in pipes or conduits

2.

Differential pressure transmitter

      
Application Number 29737687
Grant Number D0953180
Status In Force
Filing Date 2020-06-11
First Publication Date 2022-05-31
Grant Date 2022-05-31
Owner DWYER INSTRUMENTS, INC. (USA)
Inventor Meuli, Jeffrey Vern

3.

Differential pressure transmitter

      
Application Number 29737686
Grant Number D0942292
Status In Force
Filing Date 2020-06-11
First Publication Date 2022-02-01
Grant Date 2022-02-01
Owner DWYER INSTRUMENTS, INC. (USA)
Inventor Meuli, Jeffrey Vern

4.

Sensor

      
Application Number 29675555
Grant Number D0899954
Status In Force
Filing Date 2019-01-03
First Publication Date 2020-10-27
Grant Date 2020-10-27
Owner DWYER INSTRUMENTS, INC. (USA)
Inventor
  • Moss, Robert Austin
  • Guada, Alejandro Ignacio Baez
  • Ma, Shilei
  • Meuli, Jeffrey Vern

5.

MODUSENSE

      
Application Number 205757100
Status Registered
Filing Date 2020-10-15
Registration Date 2025-05-23
Owner Dwyer Instruments, Inc. (USA)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

(1) Pressure measuring apparatus, namely, pressure gauges; electronic displays for displaying pressure, temperature and humidity; environmental monitoring devices, namely, monitoring modules and atmospheric conditions sensors for use in the monitoring of indoor pressure, temperature, humidity, and air exchange rate

6.

STABILISENSE

      
Application Number 205176500
Status Pending
Filing Date 2020-09-16
Owner Dwyer Instruments, Inc. (USA)
NICE Classes  ?
  • 07 - Machines and machine tools
  • 09 - Scientific and electric apparatus and instruments

Goods & Services

(1) Pressure transducers being parts of machines (2) Pressure gauges; pressure transmitters

7.

SENSOR HEAD FOR INSERTION ELECTROMAGNETIC FLOW METER

      
Application Number US2019069045
Publication Number 2020/142477
Status In Force
Filing Date 2019-12-31
Publication Date 2020-07-09
Owner DWYER INSTRUMENTS, INC. (USA)
Inventor
  • Moss, Robert Austin
  • Guada, Alejandro Ignacio Baez
  • Ma, Shilei
  • Meuili, Jeff

Abstract

An apparatus for measuring flow in a conduit includes a sensor head configured for insertion transversely through a conduit sidewall to position the sensor head in an electrically conductive fluid flowing through the conduit. The sensor head includes a core and a coil that at least partially surrounds the core, the coil being excitable to generate an electromagnetic field. The sensor head also includes first and second electrodes spaced apart from each other, and a body that supports the coil, core, and electrodes. The body includes at least one channel through which the electrically conductive fluid flows. The electrodes are positioned in the at least one channel. Each channel is defined by opposing sidewalls that have a converging configuration.

IPC Classes  ?

  • G01F 1/58 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters

8.

Sensor head for insertion electromagnetic flow meter

      
Application Number 16239029
Grant Number 10718644
Status In Force
Filing Date 2019-01-03
First Publication Date 2020-07-09
Grant Date 2020-07-21
Owner DWYER INSTRUMENTS, INC. (USA)
Inventor
  • Moss, Robert Austin
  • Guada, Alejandro Ignacio Baez
  • Ma, Shilei
  • Meuili, Jeff

Abstract

An apparatus for measuring flow in a conduit includes a sensor head configured for insertion transversely through a conduit sidewall to position the sensor head in an electrically conductive fluid flowing through the conduit. The sensor head includes a core and a coil that at least partially surrounds the core, the coil being excitable to generate an electromagnetic field. The sensor head also includes first and second electrodes spaced apart from each other, and a body that supports the coil, core, and electrodes. The body includes at least one channel through which the electrically conductive fluid flows. The electrodes are positioned in the at least one channel. Each channel is defined by opposing sidewalls that have a converging configuration.

IPC Classes  ?

  • G01F 1/58 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters
  • G01F 1/60 - Circuits therefor

9.

DWYER

      
Application Number 203137000
Status Pending
Filing Date 2020-05-29
Owner Dwyer Instruments, Inc. (USA)
NICE Classes  ?
  • 07 - Machines and machine tools
  • 09 - Scientific and electric apparatus and instruments

Goods & Services

(1) Pressure measuring apparatus; pressure gauges; pressure sensors; pressure transmitters; pressure indicators; pressure recorders; pressure switches; pressure switches and sensors for monitoring, controlling, and switching hydraulic or pneumatic systems; combination pressure switch and gauge; pressure regulators; pressure snubbers for dampening variations in fluid pressure measurements; pressure transducers and transmitters that convert hydraulic or pneumatic pressure into analog electrical signals for monitoring and controlling hydraulic or pneumatic systems; air filter gauges; air filter switches; air filter regulators; air flow balancing instruments; air flow grid, averaging; air flow indicators; air flow alarms; air flow measurement stations; air flow switches; air hammers for discharging compressed air to prevent the accumulation of bulk material in pipes, chutes and containers; air quality measurement apparatus, namely, particle counters; air velocity monitoring and control apparatus; air velocity meters; air velocity indicators; air velocity switches; air velocity transmitters; manometers; pitot tubes; alarm sensors; anemometers; sound alarms; electrical annunciators; aspirator bulbs; averaging flow sensors; bar graph meters; bin aerator pads; calibration pumps; carbon dioxide transmitters; carbon dioxide volatile organic compound transmitters; carbon dioxide/relative humidity/temperature transmitters; carbon dioxide/temperature transmitters; carbon monoxide transmitter and switch; carbon monoxide transmitters; carbon monoxide/nitrogen dioxide gas transmitters; circular chart recorders; communicating carbon dioxide detectors; communication signal converters; electric connectors; electrical power connectors cooling towers for protecting instrumentation in high temperature applications; electric current switches; current to pressure transducers; electrical transducers; current transformers; current/voltage signal generators; recorded computer software for wireless content delivery; electronic test instruments and recorded software for use in handheld devices for measuring and monitoring physical parameters such as pressure, temperature, flow and humidity; recorded software on handheld devices for remotely monitoring environmental conditions within a building, facility, grounds, or designated spatial area; recorded software for monitoring factory manufacturing processes; electronic data loggers; flow measurement instruments; flowmeters; fluid flow alarms; fluid flow monitors; fluid flow meters; fluid flow switches; orifice plate flow meters; fluid flow sensors; flow switches for monitoring and controlling the flow of gases or liquids; fluid flow transmitters; gas pressure test kits; gauge enclosures; gauge guards; handheld carbon monoxide/carbon dioxide gas analyzers; flue gas analyzers; handheld portable data viewers; humidity and dew point measurement instrumentation; humidity switches; humidity transducers; humidity transmitters; humidity displays; humidity and temperature transmitters; hydrometer probes; hydronic differential pressure manometers; hygrometers; instrument enclosures; level indicators; level gauges; filling level detectors; float switches; probes for level measurement instruments; liquid level sensors; liquid level transmitters; level switches for monitoring and controlling liquids or bulk solids in tanks and vessels; laboratory filters; occupancy sensors, namely, electronic devices which detect the presence of occupants; panel meters, namely, electronic instruments that display an input signal in either digital or electronic form; particulate monitors; particulate controls; particulate transmitters; particulate filters for the removal of particles in fluid flow lines; pumps; sensors for determining position; electrical power supplies; vacuum gauges; vacuum switches; vacuum transmitters; proximity sensors; proximity switches; electronic sensors; refrigerant sensors: electronic proximity sensors and switches; pump controllers; rate and totalizer indicators; electric relays; room status monitors; sight flow indicators and transmitters; sight flow windows; signal conditioning and communication devices for industrial processes; speed controls; siphons for protecting pressure instruments; strainers for filtering fluids in fluid lines; tachometers, digital and analog; process instrumentation; process indicators and panel meters; loop controllers; process alarms; electrical transducers; temperature loop controllers; probes for temperature measurement instruments; temperature sensors; temperature switches; temperature transmitters; temperature gauges; temperature indicators; temperature meters not for medical use; thermocouples; thermometers other than for medical use; resistance temperature detectors; thermostats; test instruments; thickness gauges; tilt switches; timers; timer controllers; transmitters of electronic signals; valves; valves for controlling and regulating the flow of gases or liquids not being parts of plumbing, heating, cooling installations, or machines; automatic valves; ball valves; check valves; diaphragm valves; angle seat valves; butterfly valves; globe valves; needle valves; pneumatic valves; solenoid valves; temperature control valves; control valves for regulating the flow of gases and liquids; electronic valves for controlling gases or fluids; pressure relief valves; electric valve actuators; valve position indicators; piston vibrators for preventing the accumulation of bulk material in pipes, chutes and containers; electric vibrators for preventing the accumulation of bulk material in pipes, chutes and containers; volume boosters for pneumatic control valves; water leak detector and sensor tape; water leak detectors; water meters; wind speed indicators; transformers; electric transformers; current transformers; intrinsically safe electric isolator barriers for use with instrumentation in hazardous areas; zener barriers; galvanic isolators; parts and fittings for all of the aforesaid goods.

10.

ELECTROSTATIC DISCHARGE RESISTANTPRESSURE SENSOR

      
Application Number US2019034275
Publication Number 2019/240945
Status In Force
Filing Date 2019-05-29
Publication Date 2019-12-19
Owner DWYER INSTRUMENTS, INC. (USA)
Inventor
  • Syverson, Neal
  • Berry, Jason

Abstract

A pressure sensor includes a housing, a pressure chamber defined within the housing, and a pressure transducer. The pressure sensor also includes a header that seals the pressure chamber and supports the pressure transducer in the pressure chamber. A plurality of pins extend through respective openings in the header. The sensor pins have first ends electrically connected to the pressure transducer in the pressure chamber and second ends electrically connected to sensor electronics outside the pressure chamber. The pins are electrically insulated from the header. The header is configured so that the electrical insulation of at least one pin from the header is less than the electrical insulation of the remaining pins from the header.

IPC Classes  ?

  • B81B 3/00 - Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes
  • B81B 7/02 - Microstructural systems containing distinct electrical or optical devices of particular relevance for their function, e.g. microelectro-mechanical systems [MEMS]
  • G01L 19/04 - Means for compensating for effects of changes of temperature
  • G01L 19/06 - Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
  • G01L 19/14 - Housings
  • G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means

11.

Electrostatic discharge resistant pressure sensor

      
Application Number 16424921
Grant Number 11435249
Status In Force
Filing Date 2019-05-29
First Publication Date 2019-12-12
Grant Date 2022-09-06
Owner DWYER INSTRUMENTS, INC. (USA)
Inventor
  • Syverson, Neal
  • Berry, Jason

Abstract

A pressure sensor includes a housing, a pressure chamber defined within the housing, and a pressure transducer. The pressure sensor also includes a header that seals the pressure chamber and supports the pressure transducer in the pressure chamber. A plurality of pins extend through respective openings in the header. The sensor pins have first ends electrically connected to the pressure transducer in the pressure chamber and second ends electrically connected to sensor electronics outside the pressure chamber. The pins are electrically insulated from the header. The header is configured so that the electrical insulation of at least one pin from the header is less than the electrical insulation of the remaining pins from the header.

IPC Classes  ?

  • G01L 19/00 - Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
  • G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means

12.

HVAC airflow hood

      
Application Number 29609408
Grant Number D0854678
Status In Force
Filing Date 2017-06-30
First Publication Date 2019-07-23
Grant Date 2019-07-23
Owner DWYER INSTRUMENTS, INC. (USA)
Inventor
  • Moss, Robert Austin
  • Guada, Alejandro Ignacio Baez

13.

PITOT TUBE INSTRUMENT

      
Application Number US2018039488
Publication Number 2019/005785
Status In Force
Filing Date 2018-06-26
Publication Date 2019-01-03
Owner DWYER INSTRUMENTS, INC. (USA)
Inventor
  • Moss, Robert Austin
  • Ma, Shilei

Abstract

An apparatus for obtaining pressure measurements in an airstream includes a Pitot tube. The Pitot tube includes at least one total pressure port configured to be positioned in the airstream facing upstream, at least one static pressure port configured to be positioned in the airstream facing downstream, at least one first directional port, and at least one second directional port. The at least one first directional port and the at least one second directional port are positioned on opposite sides of the at least one total pressure port and face obliquely with respect to the direction that the at least one total pressure port faces.

IPC Classes  ?

  • G01P 5/165 - Arrangements or constructions of Pitot tubes
  • G01F 1/46 - Pitot tubes
  • G01F 15/18 - Supports or connecting means for meters
  • G01P 13/00 - Indicating or recording presence or absence of movementIndicating or recording of direction of movement

14.

Pitot tube instrument

      
Application Number 16018347
Grant Number 10551403
Status In Force
Filing Date 2018-06-26
First Publication Date 2018-12-27
Grant Date 2020-02-04
Owner DWYER INSTRUMENTS, INC. (USA)
Inventor
  • Moss, Robert Austin
  • Ma, Shilei

Abstract

An apparatus for obtaining pressure measurements in an airstream includes a Pitot tube. The Pitot tube includes at least one total pressure port configured to be positioned in the airstream facing upstream, at least one static pressure port configured to be positioned in the airstream facing downstream, at least one first directional port, and at least one second directional port. The at least one first directional port and the at least one second directional port are positioned on opposite sides of the at least one total pressure port and face obliquely with respect to the direction that the at least one total pressure port faces.

IPC Classes  ?

  • G01P 5/16 - Measuring speed of fluids, e.g. of air streamMeasuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring differences of pressure in the fluid using Pitot tubes
  • G01F 1/46 - Pitot tubes
  • G01F 1/34 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
  • G01F 15/14 - Casings, e.g. of special material
  • G01P 5/165 - Arrangements or constructions of Pitot tubes

15.

Anemometer

      
Application Number 15394083
Grant Number 10655992
Status In Force
Filing Date 2016-12-29
First Publication Date 2017-08-31
Grant Date 2020-05-19
Owner DWYER INSTRUMENTS, INC. (USA)
Inventor
  • Shrauger, Vernon Eugene
  • Pretorius, Jacob Van Reenen

Abstract

An apparatus for measuring airflow in an airstream includes a generally planar panel adapted to be placed in the airstream so that air passes over opposite surfaces of the panel. The panel includes at least one slot that extends through the panel. A hot-point element is mounted on one of the panel surfaces adjacent the at least one slot. The at least one slot is configured to permit air passing over the opposite surfaces to pass through the slot and become mixed together. The hot-point element is positioned on the panel so that the mixed air passes over the hot-point element.

IPC Classes  ?

  • G01F 1/684 - Structural arrangementsMounting of elements, e.g. in relation to fluid flow
  • G01P 5/10 - Measuring speed of fluids, e.g. of air streamMeasuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring thermal variables
  • G01P 5/12 - Measuring speed of fluids, e.g. of air streamMeasuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring thermal variables using variation of resistance of a heated conductor

16.

ANEMOMETER

      
Application Number US2016069224
Publication Number 2017/146818
Status In Force
Filing Date 2016-12-29
Publication Date 2017-08-31
Owner DWYER INSTRUMENTS, INC. (USA)
Inventor
  • Shrauger, Vernon Eugene
  • Pretorius, Jacob Van Reenen

Abstract

An apparatus for measuring airflow in an airstream includes a generally planar panel adapted to be placed in the airstream so that air passes over opposite surfaces of the panel. The panel includes at least one slot that extends through the panel. A hot-point element is mounted on one of the panel surfaces adjacent the at least one slot. The at least one slot is configured to permit air passing over the opposite surfaces to pass through the slot and become mixed together. The hot-point element is positioned on the panel so that the mixed air passes over the hot-point element.

IPC Classes  ?

  • G01P 5/10 - Measuring speed of fluids, e.g. of air streamMeasuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring thermal variables
  • G01F 1/684 - Structural arrangementsMounting of elements, e.g. in relation to fluid flow

17.

SYSTEM, METHOD, AND APPARATUS FOR BALANCING AN HVAC SYSTEM

      
Application Number US2015067046
Publication Number 2017/111896
Status In Force
Filing Date 2015-12-21
Publication Date 2017-06-29
Owner DWYER INSTRUMENTS, INC. (USA)
Inventor
  • Moss, Robert Austin
  • Guada, Alejandro Ignacio Baez
  • Foster, Justin

Abstract

A method and apparatus for balancing terminals of an HVAC system uses an air flow measuring device by inputting into a computer processing portion of the air flow measuring device predetermined target flows for each terminal; acquiring via the air flow measuring device initially measured air flows through each of the terminals, the initially measured air flows being provided to the computer processing portion; and adjusting the terminals in the HVAC system to flow set points according to instructions from the computer processing portion, the computer processing portion being programmed to calculate the flow set point for each terminal given current HVAC system load conditions, that will result in all terminals being set to target flow after all terminals have been adjusted as instructed.

IPC Classes  ?

  • G05D 11/13 - Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means

18.

System, method, and apparatus for balancing an HVAC system

      
Application Number 14976471
Grant Number 10671098
Status In Force
Filing Date 2015-12-21
First Publication Date 2017-06-22
Grant Date 2020-06-02
Owner DWYER INSTRUMENTS, INC. (USA)
Inventor
  • Moss, Robert Austin
  • Guada, Alejandro Ignacio Baez
  • Foster, Justin

Abstract

A method and apparatus for balancing terminals of an HVAC system uses an air flow measuring device by inputting into a computer processing portion of the air flow measuring device predetermined target flows for each terminal; acquiring via the air flow measuring device initially measured air flows through each of the terminals, the initially measured air flows being provided to the computer processing portion; and adjusting the terminals in the HVAC system to flow set points according to instructions from the computer processing portion, the computer processing portion being programmed to calculate the flow set point for each terminal given current HVAC system load conditions, that will result in all terminals being set to target flow after all terminals have been adjusted as instructed.

IPC Classes  ?

  • G05D 7/06 - Control of flow characterised by the use of electric means
  • F24F 11/30 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
  • F24F 11/62 - Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
  • F24F 11/75 - Control systems characterised by their outputsConstructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity for maintaining constant air flow rate or air velocity
  • F24F 11/77 - Control systems characterised by their outputsConstructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
  • F24F 110/30 - Velocity
  • F24F 11/84 - Control systems characterised by their outputsConstructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
  • F24F 110/40 - Pressure, e.g. wind pressure

19.

AIR FLOW HOOD

      
Application Number US2016019069
Publication Number 2016/137952
Status In Force
Filing Date 2016-02-23
Publication Date 2016-09-01
Owner DWYER INSTRUMENTS, INC. (USA)
Inventor
  • Moss, Robert Austin
  • Guada, Alejandro Ignacio Baez

Abstract

An apparatus for measuring airflow through a diffuser of an HVAC system includes a hood for being positioned adjacent the diffuser so that airflow discharged from the diffuser is directed into the hood. The hood is configured to divide and direct the airflow through a plurality of discharge channels. Sensor probes measure the airflow through each discharge channel.

IPC Classes  ?

  • F24F 11/02 - Arrangement or mounting of control or safety devices
  • F24F 13/06 - Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
  • F24F 11/00 - Control or safety arrangements

20.

Air flow hood

      
Application Number 15050813
Grant Number 10001151
Status In Force
Filing Date 2016-02-23
First Publication Date 2016-09-01
Grant Date 2018-06-19
Owner Dwyer Instruments, Inc. (USA)
Inventor
  • Moss, Robert Austin
  • Guada, Alejandro Ignacio Baez

Abstract

An apparatus for measuring airflow through a diffuser of an HVAC system includes a hood for being positioned adjacent the diffuser so that airflow discharged from the diffuser is directed into the hood. The hood is configured to divide and direct the airflow through a plurality of discharge channels. Sensor probes measure the airflow through each discharge channel.

IPC Classes  ?

  • F15D 1/02 - Influencing the flow of fluids in pipes or conduits
  • F24F 13/06 - Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
  • G01F 1/684 - Structural arrangementsMounting of elements, e.g. in relation to fluid flow

21.

ROTAMETER WITH INTEGRATED VALVE

      
Application Number US2016012156
Publication Number 2016/111994
Status In Force
Filing Date 2016-01-05
Publication Date 2016-07-14
Owner DWYER INSTRUMENTS, INC. (USA)
Inventor
  • Moss, Robert Austin
  • Thoreson, Marcus A.

Abstract

A rotameter includes a rotameter body including an inlet, an outlet, and a flow channel that provides fluid communication between the inlet and the outlet. A valve for controlling fluid flow through the inlet includes an actuator rotatable about a first axis. The actuator includes worm gear threads. The valve also includes a valve drive element rotatable about a second axis that extends transverse to the first axis. The valve drive element includes worm gear teeth that mate with the worm gear threads on the actuator so that rotation of the actuator about the first axis imparts rotation of the valve drive element about the second axis. The valve drive element further includes first screw threads that rotate with the valve drive element about the second axis. The first screw threads are configured and arranged to mate with and engage second screw threads to cause linear movement of a valve component along the second axis in response to rotation of the valve drive element. The linear movement of the valve component opens and closes the valve.

IPC Classes  ?

  • G01F 1/22 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow by variable-area meters
  • G01F 15/00 - Details of, or accessories for, apparatus of groups insofar as such details or appliances are not adapted to particular types of such apparatus
  • F16K 29/00 - Arrangements for movement of valve members other than for opening or closing the valve, e.g. for grinding-in, for preventing sticking
  • F16K 31/00 - Operating meansReleasing devices

22.

Radon mitigation system monitoring having a fluid flow switch with an adjustable wing

      
Application Number 14491406
Grant Number 09524630
Status In Force
Filing Date 2014-09-19
First Publication Date 2016-03-24
Grant Date 2016-12-20
Owner Dwyer Instruments, Inc. (USA)
Inventor
  • Guada, Alejandro Ignacio Baez
  • Goldschmidt, Matthew

Abstract

An apparatus for monitoring air flow in a vent pipe of a radon mitigation system includes a base connectable to the vent pipe. The base houses a circuit that is actuatable to indicate the condition of the radon mitigation system. An air flow switch actuates the circuit, the air flow switch includes a vane that is supported by the base and extends into the interior of the vent pipe through an opening in a wall of the vent pipe. The vane includes a wing having portions that are deflectable to permit installation of the wing through an opening in the vent pipe. The deflectable portions return under their own resilience to their non-deflected conditions once they pass through the opening in the vent pipe.

IPC Classes  ?

  • G08B 21/00 - Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
  • G08B 21/14 - Toxic gas alarms
  • F24F 7/10 - Ventilation with ducting systems with forced air circulation, e.g. by fan with air supply, or exhaust, through perforated wall, floor or ceiling
  • F24F 11/02 - Arrangement or mounting of control or safety devices
  • G01F 1/28 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow by drag-force, e.g. vane type or impact flowmeter
  • G01P 13/00 - Indicating or recording presence or absence of movementIndicating or recording of direction of movement
  • F24F 11/00 - Control or safety arrangements

23.

System method and apparatus for humidity sensor temperature compensation

      
Application Number 14247428
Grant Number 10359382
Status In Force
Filing Date 2014-04-08
First Publication Date 2015-10-08
Grant Date 2019-07-23
Owner DWYER INSTRUMENTS, INC. (USA)
Inventor
  • Moss, Robert Austin
  • Syverson, Neal Warren
  • Heuer, Daniel A.
  • Roth, Larry R.

Abstract

A humidity sensor arrangement for providing temperature compensated measurements. A first sensor is configured internal to a housing for the sensor arrangement, and a second sensor is configured external to the housing. The first sensor measures a first relative humidity at a first temperature, and the second sensor measures second temperature external. A processor determines saturation pressures for the first and second sensors and compensates the first sensor by adjusting the relative humidity for the first sensor to be a product of the relative humidity for the first sensor and a ratio of the saturation pressure of the first and second sensors. Further compensation may be produced by applying a time-based filter algorithm to the outputs of the first and second sensors. Temperature sensors can be compensated to determine room temperature and compensated temp can be used for precise humidity compensation.

IPC Classes  ?

  • G01N 19/10 - Measuring moisture content, e.g. by measuring change in length of hygroscopic filamentHygrometers
  • G01N 27/04 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
  • G01N 27/12 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluidInvestigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon reaction with a fluid
  • G01N 27/22 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance

24.

Ruggedized pressure transducer with integrated wireless antenna and rechargeable battery system

      
Application Number 14518324
Grant Number 09583967
Status In Force
Filing Date 2014-10-20
First Publication Date 2015-05-14
Grant Date 2017-02-28
Owner Dwyer Instruments, Inc. (USA)
Inventor Moss, Robert Austin

Abstract

A pressure transducer for a hammer union installation includes a lower body capable of withstanding the stresses of the hammer union installation. The lower body includes a cylindrical wall, a diaphragm, and a pressure port for exposing the diaphragm to pressure. The pressure transducer also includes one or more transducer elements mounted on the diaphragm that are operable to provide a signal related to pressure. A cap is received by the cylindrical wall and is slidable along the wall. The cap includes comprising an antenna for transmitting the signal. A spring is arranged in the lower body for dampening forces applied to the cap.

IPC Classes  ?

  • G01L 9/04 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in ohmic resistance, e.g. of potentiometers of resistance strain gauges
  • H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters
  • G01L 19/06 - Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
  • G01L 19/08 - Means for indicating or recording, e.g. for remote indication
  • G01L 5/00 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes

25.

Electronic tilt compensation for diaphragm based pressure sensors

      
Application Number 13826513
Grant Number 09395386
Status In Force
Filing Date 2013-03-14
First Publication Date 2014-09-18
Grant Date 2016-07-19
Owner Dwyer Instruments, Inc. (USA)
Inventor
  • Corder, Rodney
  • Heuer, Daniel A.

Abstract

System, apparatus and method for providing corrective sensor outputs, particularly when a sensor is subject to gravitational or acceleration effects. A sensor and accelerometer may be operatively coupled to a processor, wherein the processor receives inputs from both. The processor receives the sensor signals and determines the gravitational or acceleration effects on the sensor from the accelerometer signals. Based on these, the processor determines a correction factor that is applied to the sensor signals to provide improved and more accurate sensor outputs.

IPC Classes  ?

  • G01P 21/00 - Testing or calibrating of apparatus or devices covered by the other groups of this subclass

26.

Pressure gage with removable housing and helix

      
Application Number 13611639
Grant Number 08511167
Status In Force
Filing Date 2012-09-12
First Publication Date 2013-01-03
Grant Date 2013-08-20
Owner Dwyer Instruments, Inc. (USA)
Inventor Popp, Michael A.

Abstract

A gage having a motion detection mechanism magnetically attached to a pressure sensing diaphragm. The motion detection mechanism is magnetically coupled to a pointer rotation mechanism configured to indicate the position of the diaphragm and the corresponding pressure sensed by the diaphragm.

IPC Classes  ?

  • G01L 7/08 - Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the flexible-diaphragm type

27.

Mounting apparatus for a pressure gage

      
Application Number 13612010
Grant Number 08495916
Status In Force
Filing Date 2012-09-12
First Publication Date 2013-01-03
Grant Date 2013-07-30
Owner Dwyer Instruments, Inc. (USA)
Inventor Popp, Michael A.

Abstract

A gage having a motion detection mechanism magnetically attached to a pressure sensing diaphragm. The motion detection mechanism is magnetically coupled to a pointer rotation mechanism configured to indicate the position of the diaphragm and the corresponding pressure sensed by the diaphragm.

IPC Classes  ?

  • G01L 7/08 - Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the flexible-diaphragm type
  • G01L 7/00 - Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements

28.

Pressure gage with removable seal member and diaphragm

      
Application Number 13603606
Grant Number 08528412
Status In Force
Filing Date 2012-09-05
First Publication Date 2012-12-27
Grant Date 2013-09-10
Owner Dwyer Instruments, Inc. (USA)
Inventor Popp, Michael A.

Abstract

A gage having a motion detection mechanism magnetically attached to a pressure sensing diaphragm. The motion detection mechanism is magnetically coupled to a pointer rotation mechanism configured to indicate the position of the diaphragm and the corresponding pressure sensed by the diaphragm.

IPC Classes  ?

  • G01L 7/08 - Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the flexible-diaphragm type

29.

Pressure gage with flexible beam and clamping member

      
Application Number 13604903
Grant Number 08528410
Status In Force
Filing Date 2012-09-06
First Publication Date 2012-12-27
Grant Date 2013-09-10
Owner Dwyer Instruments, Inc. (USA)
Inventor Popp, Michael A.

Abstract

A gage having a motion detection mechanism magnetically attached to a pressure sensing diaphragm. The motion detection mechanism is magnetically coupled to a pointer rotation mechanism configured to indicate the position of the diaphragm and the corresponding pressure sensed by the diaphragm.

IPC Classes  ?

  • G01L 7/08 - Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the flexible-diaphragm type
  • G01L 7/00 - Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements

30.

Manual reset pressure switch

      
Application Number 12978838
Grant Number 08563884
Status In Force
Filing Date 2010-12-27
First Publication Date 2011-07-21
Grant Date 2013-10-22
Owner Dwyer Instruments, Inc. (USA)
Inventor
  • Palmer, Brian L.
  • Bentley, Christina A.

Abstract

A switching device including a plurality of electrical switches, and an activation lever adapted to substantially simultaneously change the switches from a first state to a second state in response to a single physical input.

IPC Classes  ?

  • H01H 35/24 - Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
  • H01H 35/26 - Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow Details

31.

PRESSURE GAGE WITH MAGNETICALLY COUPLED DIAPHRAGM

      
Application Number US2010026057
Publication Number 2010/102008
Status In Force
Filing Date 2010-03-03
Publication Date 2010-09-10
Owner DWYER INSTRUMENTS, INC. (USA)
Inventor Popp, Michael, A.

Abstract

A gage having a motion detection mechanism magnetically attached to a pressure sensing diaphragm. The motion detection mechanism is magnetically coupled to a pointer rotation mechanism configured to indicate the position of the diaphragm and the corresponding pressure sensed by the diaphragm.

IPC Classes  ?

  • G01L 7/08 - Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the flexible-diaphragm type

32.

Pressure gage with magnetically coupled diaphragm

      
Application Number 12716671
Grant Number 08307712
Status In Force
Filing Date 2010-03-03
First Publication Date 2010-09-09
Grant Date 2012-11-13
Owner Dwyer Instruments, Inc. (USA)
Inventor Popp, Michael A.

Abstract

A gage having a motion detection mechanism magnetically attached to a pressure sensing diaphragm. The motion detection mechanism is magnetically coupled to a pointer rotation mechanism configured to indicate the position of the diaphragm and the corresponding pressure sensed by the diaphragm.

IPC Classes  ?

  • G01L 7/08 - Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the flexible-diaphragm type
  • G01L 7/00 - Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements

33.

Gage cover retention mechanism

      
Application Number 12551940
Grant Number 08424705
Status In Force
Filing Date 2009-09-01
First Publication Date 2009-12-31
Grant Date 2013-04-23
Owner Dwyer Instruments, Inc. (USA)
Inventor
  • Palmer, Brian Lee
  • Popp, Michael A.

Abstract

A cover retention mechanism for releasably locking a cover to a base such as a gage housing. The cover retention mechanism includes a base lock having a receiver and a receptacle, and a cover lock having a latch attached to an end of a flexible arm. The latch is selectively movable between a retracted position wherein the latch engages the receptacle to prevent rotational movement of the cover with respect to the housing from the closed position toward an open position, and an extended position wherein the latch is removed from the receptacle and the cover is rotatable with respect to the housing from the closed position toward the open position.

IPC Classes  ?

  • B65D 41/06 - Threaded or like caps or cap-like covers secured by rotation with bayonet cams

34.

Gage enclosure with cover removal mechanism

      
Application Number 11851515
Grant Number 07600427
Status In Force
Filing Date 2007-09-07
First Publication Date 2009-03-12
Grant Date 2009-10-13
Owner Dwyer Instruments, Inc. (USA)
Inventor
  • Palmer, Brian Lee
  • Popp, Michael A.

Abstract

An enclosure for a gage including a housing and cover. The cover includes one or more mounting lugs and the housing includes one or more mounting mechanisms. Each mounting mechanism includes an inclined ramp to facilitate removal of the cover from the housing by rotational movement of the cover with respect to the housing.

IPC Classes  ?

  • G01D 11/24 - Housings
  • B65D 41/06 - Threaded or like caps or cap-like covers secured by rotation with bayonet cams

35.

MAGNESENSE

      
Application Number 122892700
Status Registered
Filing Date 2004-08-27
Registration Date 2006-01-30
Owner DWYER INSTRUMENTS, INC., an Indiana corporation (USA)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

(1) Pressure transmitters for transmitting a measured pressure or pressure differential; indicating pressure transmitters; indicating differential pressure transmitters; and pressure switches.

36.

MINI-PHOTOHELIC

      
Application Number 119971300
Status Registered
Filing Date 2003-12-16
Registration Date 2005-02-09
Owner DWYER INSTRUMENTS, INC. an Indiana corporation (USA)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

(1) Pressure gages, pressure switches and pressure transmitters.

37.

DIGIHELIC

      
Application Number 111184200
Status Registered
Filing Date 2001-08-07
Registration Date 2004-01-27
Owner DWYER INSTRUMENTS, INC., an Indiana corporation, (USA)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

(1) Pressure gages, differential pressure gages, pressure switches, differential pressure switches, combination pressure switches and gages, and pressure gages having an electrical readout display.

38.

ISO VERTER

      
Application Number 089736200
Status Registered
Filing Date 1998-11-23
Registration Date 2000-03-22
Owner DWYER INSTRUMENTS, INC. AN INDIANA CORPORATION (USA)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

(1) Process signal converters and isolators for converting an input signal to an isolated output signal.

39.

DWYER

      
Application Number 087317300
Status Registered
Filing Date 1998-03-24
Registration Date 2000-01-24
Owner DWYER INSTRUMENTS, INC. AN INDIANA CORPORATION (USA)
NICE Classes  ?
  • 06 - Common metals and ores; objects made of metal
  • 07 - Machines and machine tools
  • 08 - Hand tools and implements
  • 09 - Scientific and electric apparatus and instruments
  • 10 - Medical apparatus and instruments
  • 11 - Environmental control apparatus
  • 16 - Paper, cardboard and goods made from these materials
  • 24 - Textiles and textile goods

Goods & Services

(1) Air filter gages, air flow gages, air flow indicators, air flow meters, air flow monitors, air flow sensors, air flow switches, air velocity gages, air velocity indicators, air velocity meters, air velocity sensors, air velocity switches, air velocity transmitters, anemometers, carbon dioxide indicators, fan speed controllers, mass flow controllers, process controllers, temperature controllers, flow gages, flow indicators, flow meters, flow monitors, flow sensors, flow switches, flow transmitters, flow conversion curves, flow meter transmitters, pressure gages, pressure sensors, pressure switches, pressure transmitters, combination pressure switches and gages, differential pressure gages, differential pressure sensors, differential pressure switches, differential pressure transmitters, vacuum gages, vacuum sensors, vacuum switches, vacuum transmitters, differential vacuum gages, differential vacuum sensors, differential vacuum switches, differential vacuum transmitters, psychrometers, hand pumps, purge meters, circular strip and electronic recorders for recording data, pressure regulators, proximity sensors, position sensors, temperature sensors, sight flow indicators, sight windows, smoke gages, limit switches, liquid level switches, air filter switches, bin level switches, differential pressure switches, float switches, gas pressure switches, gage oils, gage carrying cases, hook gages, liquid and bulk level gages, liquid and bulk level indicators, liquid and bulk level switches, liquid and bulk level transmitters, magnetic gage mounts, manometers, manometer-type air balancing equipment for measuring the velocity pressure and/or the velocity of air flowing through a duct, over pressure safety traps, pitot tubes, position switches, temperature switches, valve position switches, combination switch/gage/transmitters, temperature controllers, temperature control valves, temperature data loggers, air velocity test kits, combustion test kits, gas pressure test kits, thermometers, position transmitters, temperature transmitters, valves, valve actuators, wind speed indicators. (2) Pressure gages, pressure switches, combination pressure switches and gages, air filter gages, kits for air filter gage service consisting of air filter gage parts and accessories, manometers, overpressure safety traps, kits for servicing gas appliances consisting of a manometer and parts and accessories therefor, hook gages, pitot tubes, air velocity calculators, null switches, flow meters, flow meter direct reading scales, flow meter conversion curves, metering valves, combination test sets, smoke gages, thermometers, carbon dioxide indicators, magnetic gage mounts, air velocity meters, air meters, air meter kits, air volume gages, air volume gage kits, wind speed indicators, wind meters, adjustable signal flags, gas pressure kits, gage carrying cases, psychrometers, slide rules, anemometers, monometer-type air flow balancing apparatus, combination safeguard equipment consisting of differential pressure switches and parts and accessories therefor; and parts and accessories for gages, pressure switches, manometers, and flow meters.

40.

CAPSU-PHOTOHELIC

      
Application Number 085753300
Status Registered
Filing Date 1997-09-30
Registration Date 1999-02-12
Owner DWYER INSTRUMENTS, INC. AN INDIANA CORPORATION (USA)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

(1) Combination pressure switches and gages.

41.

OPTITROL

      
Application Number 085616000
Status Registered
Filing Date 1997-09-16
Registration Date 1999-04-27
Owner DWYER INSTRUMENTS, INC. AN INDIANA CORPORATION (USA)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

(1) Optical level switches.

42.

QUICK-VIEW

      
Application Number 084474000
Status Registered
Filing Date 1997-05-12
Registration Date 1998-04-27
Owner DWYER INSTRUMENTS, INC. AN INDIANA CORPORATION (USA)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

(1) Valve position indicators, position indicating switches, position indicating transmitters, and parts therefor.

43.

PRECISOR

      
Application Number 081939000
Status Registered
Filing Date 1996-07-31
Registration Date 1998-02-12
Owner DWYER INSTRUMENTS, INC. AN INDIANA CORPORATION (USA)
NICE Classes  ? 07 - Machines and machine tools

Goods & Services

(1) Valve positioner with pneumatic servomechanism.

44.

FLOTECT

      
Application Number 079310500
Status Registered
Filing Date 1995-09-21
Registration Date 1996-09-06
Owner DWYER INSTRUMENTS, INC., ALSO TRADING AS W.E. ANDERSON DIVISION, INDIANA CORPORATION, (USA)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

(1) Explosion proof, flow responsive, electrical switching apparatus.

45.

W.E.ANDERSON

      
Application Number 071626200
Status Registered
Filing Date 1992-11-05
Registration Date 1994-11-25
Owner DWYER INSTRUMENTS, INC., ALSO TRADING AS W.E. ANDERSON DIVISION, AN INDIANA CORPORATION, (USA)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

(1) Pressure, flow and level switches; electrostatic dissipating shoe testers; visual flow indicators for gases and liquids; and sight windows for visual flow indicators.

46.

LOVE

      
Application Number 036854200
Status Registered
Filing Date 1973-10-02
Registration Date 1974-09-20
Owner DWYER INSTRUMENTS, INC., AN INDIANA CORPORATION, (USA)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

(1) Thermoelectric transducers.

47.

DWYER

      
Application Number 033461800
Status Registered
Filing Date 1970-07-13
Registration Date 1973-03-16
Owner DWYER INSTRUMENTS INC. (USA)
NICE Classes  ?
  • 02 - Paints, varnishes, lacquers
  • 06 - Common metals and ores; objects made of metal
  • 07 - Machines and machine tools
  • 09 - Scientific and electric apparatus and instruments
  • 10 - Medical apparatus and instruments
  • 11 - Environmental control apparatus
  • 16 - Paper, cardboard and goods made from these materials
  • 24 - Textiles and textile goods
  • 28 - Games; toys; sports equipment

Goods & Services

(1) Pressure gauges, pressure switches, combination pressure switches and gauges, air filter gauges, kits for air filter gauge service consisting of air filter gauge parts and accessories therefor comprising mounting panels, attachment screws, static pressure tips, and lengths of tubing; manometers, overpressure safety traps, kits for servicing gas appliances consisting of a manometer, parts therefor and accessories comprising tubing lengths, manometer dye, flame burner, and heat calculator; hook gauges, pitot tubes, air velocity calculators, null switches, flow meters, flow meter direct reading scales, flow meter conversion curves, metering valves, combustion test sets, smoke gauges, thermometers, carbon dioxide indicators, magnetic gauge mounts, air velocity meters, air meters, air meter kits, air volume gauges, air volume gauge kits, wind speed indicators, wind meters, adjustable signal flags, gas pressure kits, gauge carrying cases, psychrometers, slide rules, anemometers, manometer type air flow balancing apparatus, combustion safeguard equipment consisting of differential pressure switches and parts therefor; parts for gauges, pressure switches, manometers, and flow meters; and accessories for gauges, pressure switches, manometers, and flow meters comprising fluids, tubing, fittings, adaptors, connectors, valves, plugs, boots, clamps, aspirator bolts, magnetic mounting clips, and holders. (2) Pressure gauges, pressure switches, combination pressure switches and gauges, air filter gauges, kits for air filter gauge service consisting of air filter gauge parts and accessories, manometers, overpressure safety traps, kits for servicing gas appliances consisting of a manometer and parts and accessories therefor, hook gauges pitot tubes, air velocity calculators, null switches, flowmeters, flowmeter direct reading scales, flowmeter conversion curves, metering valves, combustion test sets, smoke gauges, thermometers, carbon dioxide indicators, magnetic gauge mounts, air velocity meters, air meters, air meter kits, air volume gauges, air volume gauge kits, wind speed indicators, wind meters, adjustable signal flags, gas pressure kits, gauge carrying cases, psychrometers, slide rules, anemometers, manometer type air flow balancing apparatus combustion safeguard equipment consisting of differential pressure switches and parts and accessories therefor, and parts and accessories for gauges, pressure switches, manometers and flow meters.

48.

MAGNEHELIC

      
Application Number 033455800
Status Registered
Filing Date 1970-07-09
Registration Date 1971-08-20
Owner DWYER INSTRUMENTS INC. (USA)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

(1) Pressure gauges.