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| Number | Title | Issue Date |
| 7964997 | Lighting apparatus A lighting apparatus comprises a power unit, a fan unit, a charging unit, a light source unit and a control unit. The power unit receives power from an external power source. The fan unit is rotated using the power supplied from the power unit. The charging unit sto... | 06/21/2011 |
| 7960872 | Side illumination light emitting diode lighting device The present invention discloses a side illumination LED lighting device which includes at least one semiconductor light emitter mounted on a thermally conductive substrate and positioned within a reflective cavity such that the forward light path of the LED is direc... | 06/14/2011 |
| 7531922 | Method and apparatus for using lighting to perform facility-wide power factor correction dimming and remote functions and to communicate with a building control system over a power line communications method(s) which can be programmed after manufacture Electronic lighting ballast in a facility intentionally presents a non-unity power factor load to an inductive or capacitive power supply, such a capability being used to correct the power factor for a larger facility employing different types of loads. Electronic l... | 05/12/2009 |
| 7385310 | Electronic ballasts which can be connected in parallel on the basis of the type of lamp The invention relates to the supply of lamps (8″, 8′″) of at least two different lamp types, of which a first lamp type (8′″) has a wattage which is approximately a whole multiple of the wattage of a second lamp type (8″), whereby th... | 06/10/2008 |
| 7375951 | Load control device having a split enclosure A load control device is operable to receive a first control signal having a first magnitude and to generate a second control signal having a second magnitude. The load control device is adapted to be installed in an electrical wallbox having a barrier. The load con... | 05/20/2008 |
| 7276818 | Energy-saving drive apparatus for DC loads Energy-saving drive apparatus for DC loads including a blocking oscillator, an amplifier, an AC-DC-converter, a voltage comparator, a current comparator, and a signal feedback circuit. The DC power produced by all kinds of batteries pass through the blocking oscilla... | 10/02/2007 |
| 7151411 | Amplifier system and method An embodiment of the present invention provides an amplifier system, comprising at least one variable impedance matching network, the output of which provides the input to at least one amplifier stage or provides an output of the power amplifier itself, and a bias n... | 12/19/2006 |
| 7148434 | Gearshift mechanism for electromotive toy car Disclosed is a gearshift mechanism for electromotive toy car is provided in a space defined by a left cover and a right cover, including a gearshift lever, a slide plate, an opening shield plate, an opening shield securing plate, a switch plate, pushbuttons, a switc... | 12/12/2006 |
| 7118413 | Quick assembling electrical connection box apparatus and method A connection box system comprising an anchor configured to be removably secured to a fixture for delivery of a signal to a consuming device. The anchor may have a first engagement mechanism. A connection box may be configured to house lines proceeding from a signal ... | 10/10/2006 |
| 7109607 | System to vary capacitance based on a control signal Some embodiments provide a plurality of capacitors coupled in parallel and a plurality of capacitor switches, each one of the capacitor switches coupled in series with a respective one of the plurality of capacitors. Also provided may be a plurality of control circu... | 09/19/2006 |
| 6933453 | Switch capable of showing a circle of light thereon A switch includes a transparent housing, a control member, and several light emitting elements; the control member is held in and pivoted to the housing with a depressed portion being within an opening at one end of the housing; the housing has two side compartments... | 08/23/2005 |
| 6927546 | Load control system and method A load control systems and methods. One embodiment of a load control system comprises at least two triac devices connected in parallel to a load, the at least two triac devices operable to deliver current to the load. At least one driver circuit is linked to the at ... | 08/09/2005 |
| 6727601 | Motor vehicle headlight with ignition device The invention concerns a motor vehicle headlight with an ignition device (3) for generating an ignition voltage for operating a light (4). The headlight has a safety device 1 for protection from injuries caused by electricity, wherein the igniti... | 04/27/2004 |
| 6388345 | Corner light switch assembly A corner light switch assembly to be mounted against a corner edge of a wall corner at a predetermined location and vertical height. The corner light switch assembly includes 1) a main switch body; 2) a switch body cover plate of L-shape constructed of a ... | 05/14/2002 |
| 6256909 | One plug system for a snowplow An external electrical connector for connecting one or more components of a snowplow blade unit. The electrical connector includes two housing components that are securable together. Each housing component includes an interface end and a coupling end. The... | 07/10/2001 |
| 6138388 | Plug system for a snowplow An external electrical connector for connecting one or more components of a snowplow blade unit. The electrical connector includes two housing components that are securable together. Each housing component includes an interface end and a coupling end. The... | 10/31/2000 |
| 6020692 | Marco lamp life extension in installation for ADI, AEI A circuit for use with optical inspection lamps, e.g., tungsten-halogen or Marco lamps, in semiconductor fabrication machines performing ADI and AEI operations, that will lower the operating voltage of the lamps when the machine is not being used by an op... | 02/01/2000 |
| 6008551 | Light control keyboard A portable light control keyboard for electrically energizing illuminating devices using piano keys, wherein each piano key, when depressed, activates switches so as to provide power to a receptacle into which an illuminating device such as a light or ban... | 12/28/1999 |
| 6005308 | Electrical switch and dimmer control device An electrical switch and dimmer device for controlling current applied to a load comprises a bezel assembly (16) which includes a bezel housing (17), a switch actuator (18) and a dimmer actuator (19). The bezel housing supports both switch and dimmer actu... | 12/21/1999 |
| 5932973 | Multifilament lamp, a method for varying its brightness and control and operating circuit therefor An incandescent lamp has an attachment for connection to a two-wire electrical power line and a bulb containing a radiating element. At least two filaments are housed in the bulb and constitute the radiating element, and circuitry has an input connected t... | 08/03/1999 |
| 5889339 | Controller and control device for a low-pressure fluorescent lamp A control device for a fluorescent lamp comprises two independent circuits based on a power transistor and a switching control circuit, series-connected between a high voltage and the ground. The power transistor has a diode that is reverse mounted betwee... | 03/30/1999 |
| 5819405 | Method for rapidly wiring electrical loads Plug-in connectors primarily intended for connecting lighting fixtures into system circuitry, the connectors include selector mechanisms which allow selection of a hot conductor or conductors necessary for energization of the fixtures. The connectors of t... | 10/13/1998 |
| 5811892 | Power supply system including mechanical output switches for use with a plurality of display tubes A low voltage power inverter utilizes reed switches to control a number of display tubes. The reed switches are controlled by magnetic coils or permanent magnets. The magnetic coils receive a control signal from a control circuit. The control circuit is p... | 09/22/1998 |
| 5763964 | Distributed neon power supply system A high frequency power supply for distributed luminous tube signage including a master power unit and one or more slave units. The master unit includes a digital oscillator, controller, and electronic switches to induce a switched high frequency waveform ... | 06/09/1998 |
| 5751116 | Apparatus to retrofit an HID light fixture An apparatus for retrofitting an HID light fixture is described in several embodiments. The apparatus is coupled in series with the secondary winding and the HID lamp of the HID light fixture. A first retrofit capacitor replaces the light fixture capacito... | 05/12/1998 |
| 5751115 | Lamp controller with lamp status detection and safety circuitry A ballast includes safety circuitry which senses lamp status through various phases of ballast operation. According to one feature, the ballast is prevented from supplying an output voltage upon initial energization of the ballast when a lamp is not prese... | 05/12/1998 |
| 5714808 | Touch control supply system for an electrical device, method of implementation and applications A system for supplying at least one electrical apparatus with a touch control. The system may be utilized in a home automation system for supplying electrical equipment, e.g., light bulbs, motors, strip lights, electrical power points, etc., or may be uti... | 02/03/1998 |
| 5675193 | Manual override mechanism for automatic switching circuit A manual override circuit for use in commercial and household electronic devices. The override circuit may employ as little as a single integrated-circuit operational amplifier, two capacitors, which are charged and discharged in appropriate sequence in r... | 10/07/1997 |
| 5650694 | Lamp controller with lamp status detection and safety circuitry A ballast includes safety circuitry which senses lamp status through various phases of ballast operation. According to one feature, the ballast is prevented from supplying an output voltage upon initial energization of the ballast when a lamp is not prese... | 07/22/1997 |
| 5616971 | Power switching circuit A power switching circuit includes a power switching NPN transistor (1) having its collector electrode coupled to a reference potential terminal (17) and its emitter electrode coupled to an output terminal (7). A driver circuit (5) is provided having an i... | 04/01/1997 |
| 5600187 | Electronically controllable capacitors using power MOSFET's An electrically controllable variable capacitor includes the interelectrode capacitance of at least one power MOSFET, a capacitance connected in series with the MOSFET and having one terminal connected to the drain or source thereof (the series capacitanc... | 02/04/1997 |
| 5553294 | Portable computer powered by rechargeable batteries When a computer is not externally powered, it operates from installed first and second batteries. In top surface of the computer, LEDs are provided which indicates three states of each battery; need of charging, during charging, and completion of charging... | 09/03/1996 |
| 5532557 | Electric light socket constructions Light socket improvements include a thermal conductor which removes heat by inducing a flow of air within the socket and/or which acts as heat sink that more efficiently transfers heat to the socket support thereby enabling use of higher wattage light bul... | 07/02/1996 |
| 5504394 | Lamp bulb having integrated lighting function control circuitry and method of manufacture An incandescent lamp bulb which is driven by an electronic control module (ECM) and method of manufacture characterized in that an inductor comprising a magnetic spool and a winding thereon is disposed within a screw shell base of the lamp bulb and surrou... | 04/02/1996 |
| 5504395 | Lamp bulb having integrated RFI suppression and method of restricting RFI to selected level An incandescent lamp bulb which is driven by an electronic control module (ECM) and method of manufacture characterized in that an inductor comprising a magnetic element and a winding thereon is disposed within a screw shell base of the lamp bulb and surr... | 04/02/1996 |
| 5426347 | Lighting system with emergency standby feature A power supply is plugged into an ordinary household electrical outlet and conditionally provides a high frequency current at a power receptacle operative to receive the power plug of an ordinary table lamp; which table lamp has a special fluorescent lamp... | 06/20/1995 |
| 5343124 | Shock-hazard-free lighting means A power supply is integrally combined with a power plug, and the combination is adapted to be plugged into an ordinary household electrical outlet and operable to provide a power-line-isolated output of 120 Volt RMS at a frequency of about 30 kHz. The Vol... | 08/30/1994 |
| 5315160 | Sequentially shifting control circuit for extendible light strings A sequentially shifting control circuit for extendible light strings which includes a main controller in one end, a backward signal-generating circuit in the other end and a plurality of bidirectional shifting control units therebetween. Each bidirectiona... | 05/24/1994 |
| 5208516 | Touch controlled electric light socket with high current tolerance A light socket for engaging and energizing a light bulb is adapted for attachment to a lamp base or other light fixture and has an internal chamber in which a touch responsive control circuit is disposed. The circuit has a solid state switch element which... | 05/04/1993 |
| 5070522 | Combined signal and power distribution system From a central point, both telephone signals and Class-2 high frequency electric power are transmitted by way of a common transmission cable to the location of a telephone apparatus; thereby to provide at that location, not only telephone signals, but als... | 12/03/1991 |
