A device comprises: a container; a first fitting coupled to the container; and a second fitting coupled to the container, wherein the first fitting is configured for coupling to a first service port of a system and the second fitting is configured for coupling to a second service port of the system such that a fluid can travel from the first service port to the second service port through the container while the system is running, wherein the system comprises at least one of an air conditioning system or a refrigeration system.
A container has a first end portion hosting a first fitting and a second end portion hosting a second fitting. The container contains a first fluid between the first end portion and the second end portion. The first fitting directly and detachably connects to a service port of a system that is running, where the system is an air conditioning system or a refrigeration system, and where the system is residential or commercial. The second fitting detachably connects to a source of a second fluid, where the first fluid is input into the service port of the system that is running from the first fitting directly and detachably connected to the service port of the system that is running when urged via the second fluid entering the container from the source via the second fitting while the system is running.
A device comprises: a tube including a first open end portion and a second open end portion; a first mating interface positioned at the first open end portion; a second mating interface positioned at the second open end portion; a push button fitting detachably mating with the first mating interface, wherein the push button fitting includes a swivel nut, wherein the push button fitting is fluidly closed by default; and a low loss fitting detachably mating with the second mating interface, wherein the low loss fitting includes a swivel body, wherein the low loss fitting is fluidly closed by default.
A device comprises: a container; a first fitting with a stationary piercing pin coupled to the container; and a second fitting coupled to the container, wherein the first fitting is configured for coupling to and piercing a sealed fluid filled canister and the second fitting is configured for coupling to a service port of the system such that a fluid can travel from the fluid filled canister through the device into the service port of the system, wherein the system comprises at least one of an air conditioning system or a refrigeration system.
A device comprises: a container; a first fitting coupled to the container; and a second fitting coupled to the container, wherein the first fitting is configured for coupling to a first service port of a system and the second fitting is configured for coupling to a second service port of the system such that a fluid can travel from the first service port to the second service port through the container while the system is running, wherein the system comprises at least one of an air conditioning system or a refrigeration system.
A composition comprising an orthoester and an organosilane, and in some embodiments, a metal deactivator, antioxidant, lubricant and/or corrosion inhibitor. Also, disclosed is use of the composition for use in increasing thermal conductivity of internal fluids in air conditioning and refrigerant systems.
C09K 5/04 - Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice-versa
C09K 5/20 - Antifreeze additives therefor, e.g. for radiator liquids
C10M 171/00 - Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well defined but for which the chemical nature is either unspecified or only very vaguely indicated
C10M 139/04 - Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing atoms of elements not provided for in groups having a silicon-to-carbon bond, e.g. silanes
A device comprises: a container; a first fitting coupled to the container; and a second fitting coupled to the container, wherein the first fitting is configured for coupling to a first service port of a system and the second fitting is configured for coupling to a second service port of the system such that a fluid can travel from the first service port to the second service port through the container while the system is running, wherein the system comprises at least one of an air conditioning system or a refrigeration system.
A device comprises: a container; a first fitting with a stationary piercing pin coupled to the container; and a second fitting coupled to the container, wherein the first fitting is configured for coupling to and piercing a sealed fluid filled canister and the second fitting is configured for coupling to a service port of the system such that a fluid can travel from the fluid filled canister through the device into the service port of the system, wherein the system comprises at least one of an air conditioning system or a refrigeration system.
A device comprises: a tube including a first open end portion and a second open end portion; a first mating interface positioned at the first open end portion; a second mating interface positioned at the second open end portion; a push button fitting detachably mating with the first mating interface, wherein the push button fitting includes a swivel nut, wherein the push button fitting is fluidly closed by default; and a low loss fitting detachably mating with the second mating interface, wherein the low loss fitting includes a swivel body, wherein the low loss fitting is fluidly closed by default.
C10M 133/12 - Amines, e.g. polyalkylene polyaminesQuaternary amines having amino groups bound to a carbon atom of a six-membered aromatic ring
C10M 171/00 - Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well defined but for which the chemical nature is either unspecified or only very vaguely indicated
C10N 20/00 - Specified physical properties of component of lubricating compositions
C10N 30/06 - OilinessFilm-strengthAnti-wearResistance to extreme pressure
C10N 30/10 - Inhibition of oxidation, e.g. anti-oxidants
C10N 30/12 - Inhibition of corrosion, e.g. anti-rust agents, anti-corrosives
A composition comprising an orthoester and an organosilane, and in some embodiments, a metal deactivator, antioxidant, lubricant and/or corrosion inhibitor. Also, disclosed is use of the composition for use in increasing thermal conductivity of internal fluids in air conditioning and refrigerant systems.
C09K 5/04 - Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice-versa
C09K 5/20 - Antifreeze additives therefor, e.g. for radiator liquids
C10M 171/00 - Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well defined but for which the chemical nature is either unspecified or only very vaguely indicated
C10M 139/04 - Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing atoms of elements not provided for in groups having a silicon-to-carbon bond, e.g. silanes
C10M 133/12 - Amines, e.g. polyalkylene polyaminesQuaternary amines having amino groups bound to a carbon atom of a six-membered aromatic ring
C10M 171/00 - Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well defined but for which the chemical nature is either unspecified or only very vaguely indicated
13.
Systems, devices, and methods for fluid management
A device comprises: a container; a first fitting coupled to the container; and a second fitting coupled to the container, wherein the first fitting is configured for coupling to a first service port of a system and the second fitting is configured for coupling to a second service port of the system such that a fluid can travel from the first service port to the second service port through the container while the system is running, wherein the system comprises at least one of an air conditioning system or a refrigeration system.
A composition for neutralizing or removing an acid in a refrigeration or air-conditioning system, the composition comprising a) an acid neutralizer or scavenger such as a metal alkoxide, carbodiimide, glycidyl ether, epoxide, alkanolamine, arylamine, overbased metal sulphonates, or an inorganic base (e.g. KOH); and b) a hydrolytic drying agent such as an orthoester (e.g. triethylorthoformate), acetal, epoxide, or a carbodiimide, whereby the water formed by neutralization is removed from the system. Also disclosed is the use of the composition for neutralizing or removing an acid from a refrigeration or air-conditioning system; and a method for neutralizing or removing an acid from the refrigeration or air-conditioning system.
F25B 45/00 - Arrangements for charging or discharging refrigerant
C09K 5/04 - Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice-versa
C23F 11/04 - Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in markedly acid liquids
C10M 171/00 - Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well defined but for which the chemical nature is either unspecified or only very vaguely indicated
C10M 141/02 - Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups , each of these compounds being essential at least one of them being an organic oxygen-containing compound
C23F 11/18 - Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using inorganic inhibitors
F25B 47/00 - Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
A manifold gauge set has at least one sight glass window for viewing contents of a refrigeration system or an air conditioning system being serviced. The window may be non-planar to achieve an appearance that varies with the presence or absence of liquid. Such a non-planar window may be in the form of a dome, prism or a fresnel lens. The gauge set may have a second light transmissive window to allow light to illuminate system contents being viewed. A light source may be provided to illuminate system contents being viewed. The light source may provide light through the same window that is used for viewing contents. A diffuser may be provided with a second window to achieve an illuminated background for viewing system contents. Similar configurations may be used in standalone sight glasses, vacuum pumps, and recovery machines.
An LED lamp has one or more red LEDs, one or more green LEDs, and one or more white LEDs. The plurality of LEDs produces light that is mixed to produce a combined light output that has color approximating that of a blackbody radiator and having a correlated color temperature of 3,800 to 5,400 Kelvin.
A manifold gauge set has at least one sight glass window for viewing contents of a refrigeration system or an air conditioning system being serviced. The window may be non-planar to achieve an appearance that varies with the presence or absence of liquid. Such a non-planar window may be in the form of a dome, prism, or a fresnel lens. The gauge set may have a second light transmissive window to allow light to illuminate system contents being viewed. A light source may be provided to illuminate system contents being viewed. The light source may provide light through the same window that is used for viewing contents. A diffuser may be provided with a second window to achieve an illuminated background for viewing system contents. Similar configurations may be used in standalone sight glasses, vacuum pumps, and recovery machines.
09 - Scientific and electric apparatus and instruments
Goods & Services
(1) Electric motors; electric motor repair parts, namely brushes; and parts for use with electric motors, namely motor bases, fin blades, shaft adaptors, shafts, bearing assemblies, blower wheels, pulleys and sheaves
(2) Electric motor repair parts, namely switches and wire for rewinding; and parts for use with electric motors, namely contactors, capacitors
Work light has LEDs that may require heatsink. Desired radiation pattern achieved by using optical components designed to produce beam or LEDs may have beams in different directions. Radiation pattern of LEDs may be changed by refractive-reflective optics or by convex lenses. Convex lenses may be hemispheres, other planoconvex shapes, concavo-convex shapes, or other shapes. Curved surfaces on any lenses may be spherical or aspheric. Ballast to operate the LEDs from line voltage AC or low voltage DC. Work light may contain batteries. The work light may be mounted on a stand. May have accessory mount. May have charging station. May have a paging transmitter to activate a paging receiver in work light. May have openings for heat transfer from heatsink to ambient air external to light.
F21L 4/00 - Electric lighting devices with self-contained electric batteries or cells
F21L 4/04 - Electric lighting devices with self-contained electric batteries or cells characterised by provision of a light source housing portion adjustably fixed to the remainder of the device
21.
Vacuum gauge and refrigeration system service tool, and methods of using the same
A vacuum gauge has a scale having a safe zone indicia, a working zone indicia, an indicator to indicate a particular location on the scale, and a pressure sensing mechanism and housing having a pressure sensing port accessible for fluid connection to the refrigeration system to receive fluid for sensing. The indicia are distinctly coded for user differentiation. The scale may include a leak indicating zone indicia and a non-working zone indicia The safe zone indicia may represent 0 to 500 microns, the working zone indicia 500 to 2000 microns, the leak indicating zone indicia 2000 to 25,400 microns, and the non-working zone indicia 25,400 to 30,000 microns. Service tool combination includes body assembly, shaft assembly and gauge in direct sealed connection with a fitting for releasable sealed fluid connection. There are methods using the combination. Tool has gripper with cavity to receive valve core pin. Gripper has base to prevent pin from pulling gripper from tool.
A concave reflector can form a more uniform beam of light. The light source can be an LED with a nominally lambertian radiation pattern. LED can be high power requiring heatsink. Light reflected by reflector and light exiting without hitting reflector can form coinciding beams of essentially same size. Matching of sizes of reflected and unreflected components can be achieved in part by having a tangent at a rim parallel to axis of reflector. For some LEDs hot spot in center of beam is reduced by curvature becoming increasingly sharp when approaching along reflective curve a critical radius at which tangent to reflector curve in plane containing axis of reflector has angle near 45 degrees with respect to axis of reflector. Reflector can be used in, for example, work lights, desk lamps, accent lights, headlamps, and flashlights. Lamps can have multiple reflectors with one LED for each reflector.
Electric motors for machines; electric motor repair parts, namely, switches, brushes and wire for rewinding; and parts for use with electric motors, namely motor bases, fin blades, shaft adapters, contactors, capacitors, shafts, bearing assemblies, blower wheels, pulleys and sheaves
Work light has LEDs that require heatsink. Desired radiation pattern achieved by using optical components designed to produce beam or LEDs may have beams in different directions. Radiation pattern of LEDs may be changed by refractive-reflective optics or by convex lenses. Convex lenses may be hemispheres, other planoconvex shapes, concavo-convex shapes, or other shapes. Curved surfaces on any lenses may be spherical or aspheric. Ballast to operate the LEDs from line voltage AC or low voltage DC. Work light may contain batteries. The work light may be mounted on a stand. May have accessory mount. May have charging station. May have a paging transmitter to activate a paging receiver in work light. May have openings for heat transfer from heatsink to ambient air external to light.
F21L 14/02 - Electric lighting devices without a self-contained power source, e.g. for mains connection capable of hand-held use, e.g. inspection lamps
09 - Scientific and electric apparatus and instruments
Goods & Services
(1) Electric motors; electric motor repair parts, namely brushes and wire for rewinding; and parts for use with electric motors, namely motor bases, fin blades, shaft adaptors, contactors, capacitors, shafts, bearing assemblies, blower wheels, pulleys and sheaves.
(2) Electric motor repair parts, namely switches.
09 - Scientific and electric apparatus and instruments
Goods & Services
(1) Electrical components for the residential and commercial refrigeration, heating, appliance, air-conditioning and electric motor industries, namely transformers, potential relays, current relays, motor overload protectors, fan control centers, general purpose relays and totally enclosed relays.
04 - Industrial oils and greases; lubricants; fuels
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
13 - Firearms; explosives
17 - Rubber and plastic; packing and insulating materials
21 - HouseHold or kitchen utensils, containers and materials; glassware; porcelain; earthenware
22 - Rope, netting, tents, awnings, sails and sacks; padding and stuffing materials
35 - Advertising and business services
37 - Construction and mining; installation and repair services
Goods & Services
(1) Parts and components for use in the refrigeration, heating, air-conditioning, motors, pumps, and plumbing fields, namely rust busters.
(2) Parts and components for use in the refrigeration, heating, air-conditioning, motors, pumps, and plumbing fields, namely zoom spout oilers.
(3) Parts and components for use in the refrigeration, heating, air-conditioning, motors, pumps, and plumbing fields, namely air-conditioning wall brackets, gas valves.
(4) Parts and components for use in the refrigeration, heating, air-conditioning, motors, pumps, and plumbing fields, namely defrost heaters, condensing units, refrigeration reclaim cylinders, blower wheels, bearings.
(5) Parts and components for use in the refrigeration, heating, air-conditioning, motors, pumps, and plumbing fields, namely pressure switches, push button and toggle switches, defrost, limit and fan switches, relays, transformers, disconnect switches, refrigerant leak detectors, thermostat guards.
(6) Parts and components for use in the refrigeration, heating, air-conditioning, motors, pumps, and plumbing fields, namely smoke bombs.
(7) Parts and components for use in the refrigeration, heating, air-conditioning, motors, pumps, and plumbing fields, namely form holders, vibration isolation pads, flexible conduits.
(8) Parts and components for use in the refrigeration, heating, air-conditioning, motors, pumps, and plumbing fields, namely clean up rags.
(9) Parts and components for use in the refrigeration, heating, air-conditioning, motors, pumps, and plumbing fields, namely bungee cords. (1) Distribution, supply of parts and equipment in the fields of refrigeration, air-conditioning, electrical and plumbing apparatus; Distribution, supply of parts and equipment in the fields of heating.
(2) Distribution, supply of parts and equipment in the fields of appliances.
(3) Distribution, supply of parts and equipment in the fields of pumps.
(4) Distribution, supply of parts and equipment in the fields of electrical motors.
(5) Installation, service and repair of parts and equipment in the fields of refrigeration, air-conditioning, electrical and plumbing apparatus; Installation, service and repair of parts and equipment in the fields of heating.
(6) Installation, service and repair of parts and equipment in the fields of appliances.
(7) Installation, service and repair of parts and equipment in the fields of pumps.
(8) Installation, service and repair of parts and equipment in the fields of electrical motors.
06 - Common metals and ores; objects made of metal
08 - Hand tools and implements
09 - Scientific and electric apparatus and instruments
Goods & Services
(1) Products for the residential and commercial refrigeration, heating, appliance and air-conditioning industries, namely access fittings, stainless steel lines and piercing valves.
(2) Products for the residential and commercial refrigeration, heating, appliance and air-conditioning industries, namely core removal tools.
(3) Products for the residential and commercial refrigeration, heating, appliance and air-conditioning industries, namely capillary tubing.
06 - Common metals and ores; objects made of metal
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
19 - Non-metallic building materials
Goods & Services
(1) Products for the residential and commercial heating industries, namely furnace chamber liners of metal
(2) Products for the residential and commercial heating industries, namely thermostats
(3) Products for the residential and commercial heating industries, namely electric heating elements.
(4) Products for the residential and commercial heating industries, namely furnace chamber liners, not of metal
37 - Construction and mining; installation and repair services
Goods & Services
(1) Supply of parts and equipment of refrigeration, air conditioning, electrical and plumbing apparatus.
(2) Servicing of parts and equipment of refrigeration, air conditioning, electrical and plumbing apparatus.
35.
COMPOSITION AND METHODS FOR INJECTION OF SEALANTS INTO AIR CONDITIONING AND REFRIGERATION SYSTEMS
The use of sealants based on organosilanes for refrigeration and air conditioning systems is made possible by control of the rate of introduction and viscosity of the sealant mixture within certain ranges. An appropriate choice of organosilane sealant is made to allow effective sealing of small pinhole size leaks in the air conditioning or refrigeration system. The organosilver is then combined with a miscible lubricant at particular ratios to provide the proper mixture viscosity for injection into the refrigerant system to prevent bearing seizure. specific orifice sizes are selected for an apparatus to ensure that the composition is injected at the flow rates required to prevent liquid slugging and subsequent compressor shutdown or failure. In addition, effective introduction of the mixture requires certain procedures be performed. Injection procedures are also described that prevent temporary or catastrophic equipment shutdown.
LED lamp has LEDs aimed rearwards with either a concave mirror to the rear of each LED, or one concave mirror to the rear of two or more LEDs, collecting the light from the LEDs to form a forward projecting beam. LEDs may be high power types that require heatsinking. LED lamp may have a lens forward of each LED to collimate the radiation produced by the LEDs into a beam, where at least one lens has at least one aspheric curved surface. LED lamp may have a transparent reflective optic to collimate the radiation produced by each LED into a beam. For an inspection lamp, the LEDs typically have a peak wavelength of 395 to 415 naometers for seeing the area being irradiated but not so visible as to overwhelm fluorescence of fluorescent materials to be detected. Other wavelengths may be used. LED inspection lamp has a combination of LEDs of different wavelengths or a combination of at least one LED and at least one other light source such that the lamp produces radiation suitable for detection of materials to be detected and adequately illuminates the area being irradiated. LED lamp has LEDs that produce a beam of suitable radiation with a width of 10 degrees or less without additional optics. LED inspection lamp has head attached to a flexible member, with head serving as heatsink for one or more high power LEDs. Current regulator circuits are also disclosed.
A manifold gauge set has at least one sight glass window for viewing contents of a refrigeration system or an air conditioning system being serviced. The window may be non-planar to achieve an appearance that varies with the presence or absence of liquid. Such a non-planar window may be in the form of a dome, prism, or a fresnel lens. The gauge set may have a second light transmissive window to allow light to illuminate system contents being viewed. A light source may be provided to illuminate system contents being viewed. The light source may provide light through the same window that is used for viewing contents. A diffuser may be provided with a second window to achieve an illuminated background for viewing system contents. Similar configurations may be used in standalone sight glasses, vacuum pumps, and recovery machines.
G01F 23/02 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by gauge glasses or other apparatus involving a window or transparent tube for directly observing the level to be measured or the level of a liquid column in free communication with the main body of the liquid
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
The present invention discloses a device, which consists of a lubricant additive composition including a miscibility agent and a hydrolytic agent, wherein the miscibility agent includes a polyolester. The present invention further discloses a device, which consists of a container containing a composition and a connector coupled to the container, wherein the connector couples the container to a port of a system such that the composition can be input into the system through the port.
C10M 159/00 - Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
C10M 163/00 - Lubricating compositions characterised by the additive being a mixture of a compound of unknown or incompletely defined constitution and a non-macromolecular compound, each of these compounds being essential
A device comprises: a tube including a first open end portion and a second open end portion; a first mating interface positioned at the first open end portion; a second mating interface positioned at the second open end portion; a push button fitting detachably mating with the first mating interface, wherein the push button fitting includes a swivel nut, wherein the push button fitting is fluidly closed by default; and a low loss fitting detachably mating with the second mating interface, wherein the low loss fitting includes a swivel body, wherein the low loss fitting is fluidly closed by default.
A device comprises: a container; a first fitting with a stationary piercing pin coupled to the container; and a second fitting coupled to the container, wherein the first fitting is configured for coupling to and piercing a sealed fluid filled canister and the second fitting is configured for coupling to a service port of the system such that a fluid can travel from the fluid filled canister through the device into the service port of the system, wherein the system comprises at least one of an air conditioning system or a refrigeration system.
A composition for neutralizing or removing an acid in a refrigeration or air-conditioning system, the composition comprising a) an acid neutralizer or scavenger such as a metal alkoxide, carbodiimide, glycidyl ether, epoxide, alkanolamine, arylamine, overbased metal sulphonates, or an inorganic base (e.g. KOH); and b) a hydrolytic drying agent such as an orthoester (e.g. triethylorthoformate), acetal, epoxide, or a carbodiimide, whereby the water formed by neutralization is removed from the system. Also disclosed is the use of the composition for neutralizing or removing an acid from a refrigeration or air-conditioning system; and a method for neutralizing or removing an acid from the refrigeration or air-conditioning system.
A device comprises: a container; a first fitting coupled to the container; and a second fitting coupled to the container, wherein the first fitting is configured for coupling to a first service port of a system and the second fitting is configured for coupling to a second service port of the system such that a fluid can travel from the first service port to the second service port through the container while the system is running, wherein the system comprises at least one of an air conditioning system or a refrigeration system
C09K 5/00 - Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerantsMaterials for the production of heat or cold by chemical reactions other than by combustion
A composition comprising an orthoester and an organosilane, and in some embodiments, a metal deactivator, antioxidant, lubricant and/or corrosion inhibitor. Also, disclosed is use of the composition for use in increasing thermal conductivity of internal fluids in air conditioning and refrigerant systems.
LED lamp has LEDs aimed rearwards with either a concave mirror to the rear of each LED, or one concave mirror to the rear of two or more LEDs, collecting the light from the LEDs to form a forward projecting beam. LEDs may be high power types that require heatsinking. LED lamp may have a lens forward of each LED to collimate the radiation produced by the LEDs into a beam, where at least one lens has at least one aspheric curved surface. LED lamp may have a transparent reflective optic to collimate the radiation produced by each LED into a beam. For an inspection lamp, the LEDs typically have a peak wavelength of 395 to 415 naometers for seeing the area being irradiated but not so visible as to overwhelm fluorescence of fluorescent materials to be detected. Other wavelengths may be used. LED inspection lamp has a combination of LEDs of different wavelengths or a combination of at least one LED and at least one other light source such that the lamp produces radiation suitable for detection of materials to be detected and adequately illuminates the area being irradiated. LED lamp has LEDs that produce a beam of suitable radiation with a width of 10 degrees or less without additional optics. LED inspection lamp has head attached to a flexible member, with head serving as heatsink for one or more high power LEDs. Current regulator circuits are also disclosed.
F21L 4/00 - Electric lighting devices with self-contained electric batteries or cells
F21L 14/02 - Electric lighting devices without a self-contained power source, e.g. for mains connection capable of hand-held use, e.g. inspection lamps
