Patent application number | Description | Published |
20100052576 | RADIO-FREQUENCY LIGHTING CONTROL SYSTEM WITH OCCUPANCY SENSING - A load control system controls an electrical load provided in a space and comprises a load control device and one or more occupancy sensors. The load control device controls the load in response to the wireless control signals received from the occupancy sensors. Each occupancy sensor transmits an occupied control signal to the load control device in response to detecting an occupancy condition in the space and a vacant control signal to the load control device in response to detecting a vacancy condition. The load control device turns on the load in response to receiving the occupied control signal from at least one of the occupancy sensors, and turns off the load in response to receiving vacant control signals from both of the occupancy sensors. The load control device is operable to determine that no wireless control signals have been received from the occupancy sensors for the length of a predetermined timeout period and to subsequently turn off the load. | 03-04-2010 |
20100052894 | BATTERY-POWERED OCCUPANCY SENSOR - A battery-powered occupancy sensor for detecting an occupancy condition in a space comprises first and second batteries, an occupancy detector circuit, a controller, and a wireless transmitter for transmitting a first wireless signal in response to the occupancy detector circuit detecting the occupancy condition in the space. The controller and the wireless transmitter are powered by the first battery, while only the occupancy detector circuit is powered by the second battery, such that the occupancy detector circuit is isolated from noise generated by the controller and the wireless transmitter. The occupancy detector circuit draws a current having a magnitude of approximately 5 microamps or less from the second battery. The occupancy sensor transmits a second wireless signal is response to determining that the voltage of one of the batteries has dropped too low. | 03-04-2010 |
20100207759 | Method and Apparatus for Configuring a Wireless Sensor - A wireless sensor for a load control system is adapted to be releasably mounted to a surface, such as a drop ceiling panel, to allow the optimum location of the sensor to be determined. A releasable mounting means of the sensor comprises two posts extending perpendicularly from a rear surface of the sensor. Each post has a small diameter and is rigid enough to pierce the panel without creating a large aesthetically-displeasing hole. The sensor may be permanently affixed to the panel by bending the posts at a rear surface of the panel without the use of a tool, such that the panel is captured between the mounting plate and the deformed posts. The sensor further comprises multiple test buttons provided on an outwardly-facing surface of the sensor for separately testing the communications of the load control system and the operation of the sensor. Alternatively, the releasable mounting means may comprise one or more magnets for magnetically coupling the sensor to a grid structure of the ceiling. | 08-19-2010 |
20110257808 | RADIO-FREQUENCY LIGHTING CONTROL SYSTEM WITH OCCUPANCY SENSING - A load control system controls an electrical load provided in a space and comprises a load control device and one or more occupancy sensors. The load control device controls the load in response to the wireless control signals received from the occupancy sensors. Each occupancy sensor transmits an occupied control signal to the load control device in response to detecting an occupancy condition in the space and a vacant control signal to the load control device in response to detecting a vacancy condition. The load control device turns on the load in response to receiving the occupied control signal from at least one of the occupancy sensors, and turns off the load in response to receiving vacant control signals from both of the occupancy sensors. The load control device is operable to determine that no wireless control signals have been received from the occupancy sensors for the length of a predetermined timeout period and to subsequently turn off the load. | 10-20-2011 |
20120068611 | RADIO-FREQUENCY LIGHTING CONTROL SYSTEM WITH OCCUPANCY SENSING - A load control system controls a lighting load provided in a space and comprises a load control device and one or more occupancy sensors. The load control device controls the load in response to the wireless control signals received from the occupancy sensors. Each occupancy sensor transmits an occupied control signal to the load control device in response to detecting an occupancy condition in the space and a vacant control signal to the load control device in response to detecting a vacancy condition. The load control device adjusts the intensity of the load to a first intensity in response to receiving the occupied control signal from at least one of the occupancy sensors, and adjusts the intensity of the load to a second intensity less than the first intensity (e.g., a non-off intensity) in response to receiving vacant control signals from both of the occupancy sensors. | 03-22-2012 |
20120068686 | RADIO-FREQUENCY LIGHTING CONTROL SYSTEM WITH OCCUPANCY SENSING - A load control system controls an electrical load provided in a space and comprises a load control device and a first occupancy sensor mounted to a moving structure (e.g., a door) and a second occupancy sensor mounted to a fixed surface (e.g., a wall or a ceiling). The load control device controls the load in response to the wireless control signals received from the occupancy sensors. The first occupancy sensor transmits an occupied wireless control signal to the load control device in response to detecting the movement of the moving structure. The second occupancy sensor transmits an occupied wireless control signal to the load control device in response to detecting the occupancy condition. The load control device turns on the load in response to receiving the occupied control signal from the first occupancy sensor, and turns off the load in response to receiving vacant control signals from both of the occupancy sensors. | 03-22-2012 |
20120286676 | Load Control Device that is Responsive to Different Types of Wireless Transmitters - A load control system for controlling an electrical load includes multiple wireless transmitters and a load control device that is able to automatically adjust how the load control device operates in response to type of wireless transmitters that are associated with the load control device. The load control device automatically operates in a first mode of operation if only the first transmitter is associated with the load control device, and automatically operates in a second mode of operation if both the first and second transmitters are associated with the load control device. The first transmitter may comprise a daylight sensor, and the load control device may only turn on the electrical load in one of the two modes in response to the daylight sensor. | 11-15-2012 |
20140333210 | AUTOMATIC CONFIGURATION OF A LOAD CONTROL DEVICE - A load control system for controlling an electrical load may include a sensor, a remote control, and a load control device. The remote control may comprise a button and may be configured to wirelessly transmit a digital message in response to an actuation of the button. The load control device may be configured to control the electrical load, be responsive to the sensor, and/or be configured to be associated with the remote control. The load control device may be responsive to the digital message transmitted by the remote control if the remote control is associated with the load control device. The load control device may be configured to automatically operate in a first mode of operation if the remote control is not associated with the load control device, and automatically operate in a second mode of operation if the remote control is associated with the load control device. | 11-13-2014 |
20150223310 | RADIO-FREQUENCY LIGHTING CONTROL SYSTEM WITH OCCUPANCY SENSING - A load control system controls an electrical load provided in a space and comprises a load control device and one or more occupancy sensors. The load control device controls the load in response to the wireless control signals received from the occupancy sensors. Each occupancy sensor transmits an occupied control signal to the load control device in response to detecting an occupancy condition in the space and a vacant control signal to the load control device in response to detecting a vacancy condition. The load control device turns on the load in response to receiving the occupied control signal from at least one of the occupancy sensors, and turns off the load in response to receiving vacant control signals from both of the occupancy sensors. The load control device is operable to determine that no wireless control signals have been received from the occupancy sensors for the length of a predetermined timeout period and to subsequently turn off the load. | 08-06-2015 |
20150230323 | RADIO-FREQUENCY LIGHTING CONTROL SYSTEM WITH OCCUPANCY SENSING - A load control system controls a lighting load provided in a space and comprises a load control device and one or more occupancy sensors. The load control device controls the load in response to the wireless control signals received from the occupancy sensors. Each occupancy sensor transmits an occupied control signal to the load control device in response to detecting an occupancy condition in the space and a vacant control signal to the load control device in response to detecting a vacancy condition. The load control device adjusts the intensity of the load to a first intensity in response to receiving the occupied control signal from at least one of the occupancy sensors, and adjusts the intensity of the load to a second intensity less than the first intensity (e.g., a non-off intensity) in response to receiving vacant control signals from both of the occupancy sensors. | 08-13-2015 |
Patent application number | Description | Published |
20080251053 | Evaporative emissions control system - The invention provides a fuel tank venting system for an engine. The fuel tank venting system includes a fuel tank, a carburetor, and a fuel tank vent passageway. The carburetor is coupled to the fuel tank. The fuel tank vent passageway is in fluid flow communication with the fuel tank and at least partially disposed inside the carburetor. The fuel tank venting system may further include an air filter and a roll-over valve. The air filter may include a carbon-impregnated foam element. | 10-16-2008 |
20080251055 | EVAPORATIVE EMISSIONS CONTROL SYSTEM - An evaporative emissions control system for an engine including a fuel tank having a fuel tank vapor space, a carburetor coupled to the fuel tank, and a fuel tank cap having fuel vapor adsorption media that adsorbs vapor from the fuel tank vapor space. The fuel tank cap is in fluid communication with the carburetor via the vapor space and is configured to permit fuel vapor stored in the fuel adsorption media to be purged into the carburetor via the vapor space. | 10-16-2008 |
20090294450 | FUEL TANK CAP FOR A FUEL TANK - A fuel tank cap for a fuel tank of an engine. The fuel tank cap includes a fuel cap cover, a housing having a side wall, a bottom wall, and a receptacle, a fuel vapor adsorption material positioned within the receptacle, an inlet disposed near the bottom wall and configured to provide fluid communication with a fuel tank vapor space, an outlet disposed near the bottom wall and configured to provide fluid communication with the atmosphere, an internal wall adjacent the bottom wall and disposed between the inlet and the outlet, and at least one aperture configured to permit fuel vapor to flow in a vapor flow path from one side of the internal wall to the other side of the internal wall. | 12-03-2009 |
20120085764 | FUEL TANK CAP FOR A FUEL TANK - A fuel tank cap includes a housing having a side wall, a bottom wall, and a receptacle, a fuel vapor adsorption material positioned within the receptacle, an inlet at least partially defined by the bottom wall and configured to provide fluid communication with a fuel tank vapor space, an outlet at least partially defined by the bottom wall and configured to provide fluid communication with the atmosphere, an internal wall extending from the bottom wall at least partially into the receptacle, and an aperture at least partially defined by the internal wall and configured to permit fuel vapor to flow in a vapor flow path from one side of the internal wall to the other side of the internal wall. | 04-12-2012 |
20140216424 | EVAPORATIVE EMISSIONS FUEL SYSTEM - An engine includes a fuel tank with a fuel tank body defining an internal fuel tank volume for containing a fuel, a vent conduit integrally formed with the fuel tank body, and an air cleaner system including an air cleaner housing defining an internal air cleaner volume. The vent conduit extends between an inlet aperture and an outlet aperture. The inlet aperture is in fluid communication with the internal fuel tank volume. An opening is formed in the air cleaner housing and the vent conduit extends through the opening. The outlet aperture of the vent conduit is positioned within the internal air cleaner volume and the vent conduit provides fluid communication between the internal fuel tank volume and the internal air cleaner volume. | 08-07-2014 |
20140261331 | REFUELING SYSTEM FOR OUTDOOR POWER EQUIPMENT - A refueling system includes a filling station configured to store a first volume of liquid fuel, the filling station including a station receptacle, a removable fuel cartridge configured to store a second volume of liquid fuel less than the first volume of liquid fuel, and outdoor power equipment including an engine having an engine receptacle, wherein inserting the removable fuel cartridge into the station receptacle fluidly couples the filling station and the removable fuel cartridge to automatically fill the removable fuel cartridge with liquid fuel, and wherein inserting the removable fuel cartridge into the engine receptacle fluidly couples the removable fuel cartridge and the engine to provide liquid fuel to the engine. | 09-18-2014 |
20150108253 | PRESSURE WASHER GUN WITH CHEMICAL INJECTION AND FOAMING CAPABILITIES - A pressure washer spray gun includes a spray gun body configured to be fluidly coupled to a source of pressurized water, a chemical container coupled to the spray gun body, wherein the chemical container is configured to contain liquid chemical, a venturi including a converging section, a throat, and a diverging section, wherein the venturi is coupled to the body, and wherein the chemical container is fluidly coupled to the throat, an air inlet port formed in the diverging section and configured to fluidly couple the diverging section to a source of air, and multiple nozzles, wherein each nozzle has a different orifice diameter, and wherein only one nozzle at a time can be selected to provide a fluid output from the spray gun. | 04-23-2015 |
Patent application number | Description | Published |
20130242450 | ELECTRICAL SWITCHING APPARATUS WITH EMBEDDED ARC FAULT PROTECTION AND SYSTEM EMPLOYING SAME - An electrical switching apparatus, such as a subminiature circuit breaker, includes a housing assembly, separable contacts, an operating mechanism having an actuator device and a latching assembly, a first trip device for tripping open the separable contacts in response to an overcurrent condition, and a second trip device for tripping open the separable contacts in response to an arc fault, a ground fault or a remotely transmitted signal. The subminiature circuit breaker includes a reset solenoid and a trip solenoid. The resent solenoid is coupled to the actuator device, and includes a coil operable to electrically reset the separable contacts. The trip solenoid is coupled to the latching assembly, and includes a coil operable to move the catch lever, thereby electrically tripping open the separable contacts. | 09-19-2013 |
20150021982 | DIRECT CURRENT ELECTRICAL GENERATING SYSTEM INCLUDING A PLURALITY OF DIRECT CURRENT ELECTRICAL GENERATING MODULES EACH HAVING AN ELECTROMECHANICAL SWITCH - A system includes a power line, a control line, and a plurality of direct current electrical generating modules. Each of the direct current electrical generating modules is electrically connected to the power line and the control line and includes an electromechanical switch structured to interrupt power flowing through the power line. A control module is electrically connected to the control line and is structured to electrically control the electromechanical switch of each of the direct current electrical generating modules via the control line. | 01-22-2015 |
20150310719 | APPARATUS INCLUDING ELECTRODES, A RECTIFIER OR CIRCUIT, AND AN ILLUMINATED OR NON-ILLUMINATED INDICATOR FOR VISUAL INDICATION OF ENERGIZED ELECTRICAL CONDUCTORS - An apparatus is for visual indication of an energized state of electrical conductors. The apparatus includes two electrodes structured to capacitively couple to two energized electrical conductors, respectively, in order to harvest an electric field. A rectifier is powered from one or both of the two electrodes. An illuminated indicator or a non-illuminated indicator is powered from the rectifier. | 10-29-2015 |