Class 315/322 - Alternate circuit closing

Subclass of Class 315 - Electric lamp and discharge devices: systems
Definition: Systems which include at least two load device circuits
No. of patents: 23
Last issue date: 04/07/2009

Number	Title	Issue Date
7514884	Microprocessor controlled time domain switching of color-changing lights A lighting system controller comprising a switch connected to a lighting fixture configured to be controlled by time domain switching, and a processor capable of actuating said switch so as to achieve time domain switching of the lighting fixture. ...	04/07/2009
7168430	Lamp device on a production machine for the manufacture of products of the tobacco-processing industry as well as associated lamp Machine for making tobacco-processing industry products includes a plurality of lamps arranged on components of the machine. Each lamp includes at least one visible light-emitting power semiconductor light source. An electronic mode control unit is electrically conn...	01/30/2007
7045965	LED light module and series connected light modules A lighting module with improved reliability including a pair of LEDs connected in parallel and with the same polarity and a method for making the said light module are disclosed. The parallel LEDs with the same polarity will increase the reliability of the light mod...	05/16/2006
7012384	Illumination device for vehicle compartment An illumination device having a first light source, a second light source, whose luminous color differs from that of said first light source, and a controller for controlling the illuminating condition of each of the first light source and the second light source is...	03/14/2006
6577072	Power supply and LED lamp device An LED lamp device of the invention includes a power supply unit (102, 103) supplied with an alternating-current power supply voltage, and an LED lamp (106) constituted by one or a plurality of serially connected LEDs connected to output terminals of the ...	06/10/2003
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
5559406	Ceiling fan and light assembly control circuit with remote controller/single-throw switch optional controls A ceiling fan and light assembly control circuit including a microprocessor controlled by a single-throw switch and an infrared remote controller operated to regulate the fan speed and the intensity of light. A 60 Hz square wave signal of cycle 16.67 ms i...	09/24/1996
5534733	Digital dimming and flashing circuit for locomotive ditch lights A light is dimmed by pulsing it at a selected duty cycle. By pulsing, the light can be dimmed without being turned off completely which reduces wear on the filament. The circuit is designed for flashing a pair of ditch lights on a railroad locomotive. The...	07/09/1996
5309061	Compact fluorescent lamp having incandescent lamp starting aid A lamp assembly includes a tubular incandescent lamp located between the four tube sections of a double twin tube compact fluorescent lamp such that heat is transferred from the incandescent lamp to the fluorescent lamp when the incandescent lamp is energ...	05/03/1994
5083063	Radiation generator control apparatus Apparatus for controlling operation of a number of radiation generator assemblies comprises a store for storing calibration values for respective assemblies, respective switches, a digital to analogue converter (D/A) and control means. The switches are co...	01/21/1992
5079485	Ballast for supplying a plurality of discharge lamps A device which enables a plurality of discharge lamps that are connected to a common ballast to be turned on and off separately via external switches. The operation circuit of the ballast is connected to the external switches through decouplers. The opera...	01/07/1992
4879495	Illumination control methods and means A system and method for altering the amount of electrical energy supplied to a plurality of fluorescent lamps, has a first switch connected in series between a source of electrical energy and a plurality of lamps connected in parallel. The first switch ma...	11/07/1989
4794271	Power control method and apparatus Power is controlled in a first circuit by a conventional off/on swtich. The power is used by a first device or group of devices connected to the first circuit. A second circuit has a second power-using device or group of devices. The second circuit is con...	12/27/1988
4767968	System for controlling the operation of electrically powered apparatus The preferred embodiment of the present invention provides a control system which permits operation of electrically powered apparatus in any one of several active modes from a controller mounted remotely from the apparatus. The system is particularly usef...	08/30/1988
4757111	Weather-resistant resin, and its production A weather-resistant resin having excellent impact resistance, processability and appearance, which comprises a graft polymer comprising an ethylene/alpha-olefin elastomer and at least one monomeric component chosen from aromatic vinyl monomers, vinyl cyan...	07/12/1988
4580201	Steady light Xenon unit An electrical illumination device, using a plurality of Xenon stroboscopic lights, with the bulbs mounted around a column that sets on a case containing the principal components of the stroboscopic lights with electrical conductors and switching devices t...	04/01/1986
4484105	Circuit for selectively exciting one of a pair of light emitting diodes A circuit for selectively lighting one of a pair of light-emitting diodes (LEDs) arranged in a parallel, back-to-back, circuit configuration also known as an anti-parallel circuit configuration. One side of the configuration is connected with ground conne...	11/20/1984
4464608	Circuit for controlling optical apparatus such as an ophthalmoscope A circuit for operating and controlling optical apparatus for viewing an object and making a photographic record thereof and having an illuminating light source and a photoflash light source, the circuit including a pulse width modulator for operating the...	08/07/1984
4366417	Suppression circuit for interference pulses in transformers with high leakage inductance A circuit for suppressing interference pulses occurring in transformers with high leakage inductance. The circuit includes current controlled switches connected to the transformers having secondary windings. The switches are controlled by a trigger circui...	12/28/1982
4357558	Automatic control device for lighting and extinction of headlamps in a vehicle An automatic control device for the lighting and extinction of headlamps of car, comprising at least two photo-sensitive elements connected to control circuits defining luminosity thresholds to produce control signals depending on ambient luminosity, and ...	11/02/1982
4322632	Remote load selector Circuitry for applying electrical power to one or more load devices under control of a remotely located manually operable switch coupled to the circuitry by a single power transmission line. The circuitry responds to toggling of the remotely located switc...	03/30/1982
4293795	Solid state flasher relay A solid state flasher relay of the type for switching an AC or a DC voltage across first and second loads interconnected at a common junction. More specifically, a solid state flasher relay is disclosed wherein shunting transistors are selectively control...	10/06/1981
4107666	Variable pulse distribution electro-optical system A plurality of radiant energy sources are alternatively pulsed in accorda with programmable pulsing sequences to permit testing of guided homing seekers and the like. A trigger selector is provided for each source and takes the form of a programmable cou...	08/15/1978

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Class 315/322 - Alternate circuit closing