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Class 315/251 - Inverse parallel connected asymmetrical discharge device loads


Subclass of Class 315 - Electric lamp and discharge devices: systems
Definition: Systems wherein the load devices are discharge devices of
No. of patents: 10
Last issue date: 04/01/2008


NumberTitleIssue Date
7351148Electronic sequence matching game and method of game play using same
The present invention is directed to an apparatus and a method of game play for an electronic sequence matching game the may include a pair of elongated stick member that may be operatively coupled together by an electrical cord so the game play for the electronic m...
04/01/2008
7276859Three-phase electronic ballast with improved three-phase EMI filter
A ballast (20) for powering at least one gas discharge lamp (52) from a three-phase AC voltage source (30) comprises a three-phase rectifier circuit (200), a high frequency filter capacitor (300), a high frequency inverter (400
10/02/2007
7066780Pet entertainment device
A pet entertainment device for the entertainment of a pet. The device having a laser device that is configured to attach to a pet though use of a garment, such as a collar. The laser device preferably controllable through use of a remote control so that the movement...
06/27/2006
7057354Frequency controlled lighting system
A method and apparatus for illuminating lighting elements in one or more predetermined patterns. A preferred frequency controlled lighting system implementing this method includes a motion switch, a controller, a sound generator, and lighting elements. The motion sw...
06/06/2006
6906474Three-phase electronic ballast
A ballast (10) for powering at least one gas discharge lamp (52) from a three-phase AC voltage source (30) comprises a three-phase rectifier circuit (200), a high frequency filter capacitor (300), and a high frequency inverter (...
06/14/2005
5844377Kinetically multicolored light source
A kinetically multicolored light source is described, comprising: a light source capable of producing a plurality of primary colors; oscillatory means for driving said light source; and means for moving said light source. The oscillatory driving means may...
12/01/1998
5387847Passive power factor ballast circuit for the gas discharge lamps
A ballast for a gas discharge lamp circuit has a d-c output which contains three series-connected diodes connected across the output terminals, a pair of capacitors connected from different respective nodes of the diodes to respective ones of the output t...
02/07/1995
5294868Dual lamp electronic ballast with independent control means
An electronic ballast circuit for two fluorescent lamps connected in parallel. A single switching inverter connected through a common coupling circuit provides high frequency alternating current for operation of both lamps independently of each other insu...
03/15/1994
5066929Circuit for producing four indications on a bicolor light emitting diode having two leads
A circuit for producing four indications on a bicolor light emitting diode (LED) includes a ring oscillator, with two inputs controlling inverters of opposite phase. By enabling or disabling these inverters, either, both, or neither dies of the LED are en...
11/19/1991
4947086System for lighting fluorescent lamps
A system for lighting fluorescent lamps, includes a plurality of fluorescent lamps, a transformer for generating filament voltage and a starting voltage for the fluorescent lamps, a switching circuit for sequentially and periodically opening and closing a...
08/07/1990
 
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