A central vacuum cleaning system can include a vacuum unit, a plurality of inlet valves, an exhaust, a cleaning air path from the inlet valves through the vacuum unit to the exhaust, and a control unit. An example control unit can include a power input, a power output, motor control circuitry to control application of power from the power input to the power output, a first port, a second port, a conduit providing a conduit air path between the first port and the second, a heat sink in thermal contact with the conduit air path and a component of the motor control circuitry, wherein the control unit is connected through the first port and the second port in the cleaning air flow path between the inlets and the exhaust, and the power output is connected to a power input of the vacuum unit.
A47L 9/28 - Installation of the electric equipment, e.g. adaptation or attachment to the suction cleanerControlling suction cleaners by electric means
A47L 5/38 - Built-in suction cleaner installations, i.e. with fixed tube system to which, at different stations, hoses can be connected
A47L 7/04 - Suction cleaners adapted for additional purposesTables with suction openings for cleaning purposesContainers for cleaning articles by suctionSuction cleaners adapted to cleaning of brushesSuction cleaners adapted to taking-up liquids for using the exhaust air for other purposes, e.g. for distribution of chemicals in a room, for sterilisation of the air
An appliance and a method of determining a wireless communication frequency range from received AC power input comprising automatically determining an AC power characteristic from the AC mains power, automatically mapping the determined AC power characteristic to the wireless frequency range within a pre-determined wireless frequency range, and automatically selecting the wireless communication frequency range to communicate with an auxiliary appliance.
While a dryer is running, continuously automatically monitor operation of a dryer venting system, and continuously automatically determining if the dryer venting system is operating improperly, and if it is determined that the dryer venting system is operating improperly then automatically disabling the dryer. If the dryer starts running then automatically turning on a booster fan. Operation of booster fan is monitored by sensing the current drawn. Monitoring operation of the venting system through a first controller and automatically disabling the dryer through a second controller. Automatically turn off the booster fan if the dryer is not running. Automatically adjust operating parameters of the dryer venting system in an attempt to operate the venting system properly, and disabling the dryer if the venting system continues to operate improperly after adjustment. Check to determine if the dryer is drawing current to indicate the dryer is running.
While a dryer is running, continuously automatically monitor operation of a dryer venting system, and continuously automatically determining if the dryer venting system is operating improperly, and if it is determined that the dryer venting system is operating improperly then automatically disabling the dryer. If the dryer starts running then automatically turning on a booster fan. Operation of booster fan is monitored by sensing the current drawn. Monitoring operation of the venting system through a first controller and automatically disabling the dryer through a second controller. Automatically turn off the booster fan if the dryer is not running. Automatically adjust operating parameters of the dryer venting system in an attempt to operate the venting system properly, and disabling the dryer if the venting system continues to operate improperly after adjustment. Check to determine if the dryer is drawing current to indicate the dryer is running.
Sensor includes electrodes on internal layer of multilayer printed circuit board, and sensing circuitry drives electrodes and reads signal having characteristic based upon capacitance between electrodes. Board may have first layer second layer, with electrodes between layers. One layer may be thicker than other layer such that capacitance external to board is primarily contributed from adjacent other layer. Electrodes may be on internal surface and sensing circuitry may be on opposing external surface. Components for sensing circuitry may be assembled to board such that board and components are multilayer printed circuit board assembly. Circuitry having wireless transmitter and wireless receiver, wherein circuitry has operating mode to transmit signals remotely through transmitter and ship mode wherein transmitter is silenced, and in operating mode circuitry listens for signals indicating transmitted signal has been received, and if receiver has not received acknowledgement one signal then circuitry enters ship mode.
G01N 27/22 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
G01D 5/24 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance
G08C 17/02 - Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
E03F 5/16 - Devices for separating oil, water, or grease from sewage in drains leading to the main sewer
C02F 1/40 - Devices for separating or removing fatty or oily substances or similar floating material
6.
CENTRAL VACUUM CLEANING SYSTEM BATTERY HOUSING AND HANDLE
A central vacuum cleaning system hose handle uses a battery, and has a battery compartment and a battery housing. Battery housing is interchangeable with power plug housing. When housing is drawer then drawer and handle have slide mechanism on which drawer extends in and out. First stop limits depth drawer can slide in. Second stop limits depth drawer can extend out. External access prevented when drawer extended to first stop, permitted when drawer extended to second stop. Releasable locking mechanism inhibits drawer from extending out when handle in use. Crib releasably retains battery. Spring electrical contacts at opposing ends of crib. Crib generally formed to profile of battery. Drawer oriented generally parallel to longitudinal wand adapter axis of handle, crib opening away from axis. Alternatively, housing has body with internal chamber to receive battery and an opening to provide access through an aperture in the handle to the chamber.
A vacuum cleaning system for use in a structure. System has receiver adapted to receive communication that an appliance has been activated, and a control circuit adapted to control the central vacuum cleaning system upon receipt of a communication at the receiver that the appliance has been activated. Example appliances include doorbell, telephone or ERV. System may have a communication module that communicates with corresponding appliance communication module. The system communication module may transmit communications to the appliance communication module. Alternatively, the appliance communication module may transmit communications to the system communications module. The modules may both receive and transmit. Preferably, communications between modules are radio frequency (RF) wireless, however wired communications, where wiring is possible or available, are also suitable.
A47L 9/28 - Installation of the electric equipment, e.g. adaptation or attachment to the suction cleanerControlling suction cleaners by electric means
A47L 5/38 - Built-in suction cleaner installations, i.e. with fixed tube system to which, at different stations, hoses can be connected
G08B 3/10 - Audible signalling systemsAudible personal calling systems using electric transmissionAudible signalling systemsAudible personal calling systems using electromagnetic transmission
H04M 1/00 - Substation equipment, e.g. for use by subscribers
H04M 19/04 - Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
8.
CENTRAL VACUUM CLEANER MULTIPLE VACUUM SOURCE CONTROL
A central vacuum cleaning system has multiple vacuum sources. The multiple vacuum sources are connected through pipes to wall valves. In use a hose is plugged into one of the valves. A handle is connected to the hose. A wand extends from the handle. Attachments such as a power brush are connected to the wand. Switches apply power from one or more power sources to the vacuum sources. The application of power by the switches is controlled by a control circuit.
Hose nipple has longitudinal axis, distal end, and aperture. Distal end closed and in line with axis for insertion into wall valve. Aperture opens out of line with axis. Nipple and valve alignment mechanisms align nipple and valve apertures for mating. Valve member slides in valve on insertion of nipple through opening of valve against front surface of member. In first position, front surface between opening and aperture. Fluid connection through valve prevented. In second position, front surface further into valve, and fluid connection provided. Valve and nipple longitudinal retention mechanisms retain nipple. Mechanisms engaged by rotational movement. Valve and nipple rotational coupling mechanisms form rotational coupling that is manually engageable and releasable. Hose assembly has nipple, handle, and stretch hose. Handle may have turbine and generator, air causes turbine to turn and generator to generate electrical energy. Central vacuum cleaning system has vacuum source, valve, piping, and assembly.
ABSTRACT A central vacuum cleaning system including a receptacle for receiving dirt; conduits terminating in valves to which a flexible hose may be attached; a motor for generating airflow through the conduits to the receptacle; a motor control circuit controlling power to the motor; and a remote module receiving, through a communications medium from the motor control circuit, signals indicating an operating condition of the central vacuum cleaning system. Date Recue/Date Received 2021-02-23
A47L 5/38 - Built-in suction cleaner installations, i.e. with fixed tube system to which, at different stations, hoses can be connected
H02P 29/40 - Regulating or controlling the amount of current drawn or delivered by the motor for controlling the mechanical load
H04W 4/30 - Services specially adapted for particular environments, situations or purposes
H04W 4/38 - Services specially adapted for particular environments, situations or purposes for collecting sensor information
A47L 9/19 - Means for monitoring filtering operation
A47L 9/28 - Installation of the electric equipment, e.g. adaptation or attachment to the suction cleanerControlling suction cleaners by electric means
H02H 3/08 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess current
H02H 7/085 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02K 7/18 - Structural association of electric generators with mechanical driving motors, e.g.with turbines
H02P 1/04 - Means for controlling progress of starting sequence in dependence upon time or upon current, speed, or other motor parameter
A central vacuum cleaning system including a receptacle for receiving dirt; conduits terminating in valves to which a flexible hose may be attached; a motor for generating airflow through the conduits to the receptacle; a motor control circuit controlling power to the motor; and a remote module receiving, through a communications medium from the motor control circuit, signals indicating an operating condition of the central vacuum cleaning system.
A central vacuum cleaning system including a receptacle for receiving dirt; conduits terminating in valves to which a flexible hose may be attached; a motor for generating airflow through the conduits to the receptacle; a motor control circuit controlling power to the motor; and a remote module receiving, through a communications medium from the motor control circuit, signals indicating an operating condition of the central vacuum cleaning system.
A central vacuum cleaning system control subsystem for use in a central vacuum cleaning system having a motor includes a central vacuum unit control module with a receiver for wirelessly receiving command signals, and a power stage for controlling the motor in accordance with command signals received through the receiver. The control module is stable in high ambient temperature. Current flowing to the motor is sensed, and motor overcurrent and undercurrent conditions are determined. The control module determines when the motor is in an overcurrent condition. Power stage has a triac for controlling power to the motor. The control module also has a microprocessor that compares the current sensed against a normal operating current to determine overcurrent condition. Power to motor ceases when overcurrent condition exists. A generator is powered by air flow in a cleaning system for production of electrical energy.
A central vacuum cleaning system including a receptacle for receiving dirt; conduits terminating in valves to which a flexible hose may be attached; a motor for generating airflow through the conduits to the receptacle; a motor control circuit controlling power to the motor, and a remote module receiving, through a communications medium from the motor control circuit, signals indicating an operating condition of the central vacuum cleaning system.
A47L 5/38 - Built-in suction cleaner installations, i.e. with fixed tube system to which, at different stations, hoses can be connected
A47L 9/19 - Means for monitoring filtering operation
A47L 9/28 - Installation of the electric equipment, e.g. adaptation or attachment to the suction cleanerControlling suction cleaners by electric means
G08C 17/02 - Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
H02H 3/08 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess current
H02H 7/085 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02K 7/18 - Structural association of electric generators with mechanical driving motors, e.g.with turbines
H02P 1/04 - Means for controlling progress of starting sequence in dependence upon time or upon current, speed, or other motor parameter
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