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Electric lamp and discharge devices: systems

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Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
315291000 CURRENT AND/OR VOLTAGE REGULATION 2120
315149000 WITH RADIANT ENERGY SENSITIVE CONTROL MEANS 686
315246000 PULSATING OR A.C. SUPPLY 656
315185000 PLURAL SERIES CONNECTED LOAD DEVICES 594
315209000 PERIODIC SWITCH IN THE SUPPLY CIRCUIT 574
315032000 COMBINED LOAD DEVICE OR LOAD DEVICE TEMPERATURE MODIFYING MEANS AND ELECTRICAL CIRCUIT DEVICE STRUCTURE 487
315312000 PLURAL LOAD DEVICE SYSTEMS 307
315119000 WITH AUTOMATIC SHUNT AND/OR CUTOUT 300
315076000 SPECIAL APPLICATION 284
315111010 DISCHARGE DEVICE LOAD WITH FLUENT MATERIAL SUPPLY TO THE DISCHARGE SPACE 238
315200000 DISCHARGE DEVICE AND/OR RECTIFIER IN THE SUPPLY CIRCUIT 237
315112000 WITH LOAD DEVICE TEMPERATURE MODIFIER 230
315160000 PLURAL POWER SUPPLIES 180
315129000 WITH SIGNAL, INDICATOR, OR ALARM 121
315500000 HIGH ENERGY PARTICLE ACCELERATOR TUBE 113
315362000 ELECTRIC SWITCH IN THE SUPPLY CIRCUIT 79
315227000 CONDENSER IN THE SUPPLY CIRCUIT 78
315001000 CATHODE RAY TUBE CIRCUITS 71
315086000 AUTOMATIC SUBSTITUTION OF THE POWER SUPPLY 64
315363000 MISCELLANEOUS SYSTEMS 42
315326000 DISCHARGE DEVICE LOAD 28
315360000 TIME-CONTROLLED 27
315178000 PLURAL DIVERSE-TYPE LOAD DEVICES 26
315085000 WITH ELECTROMAGNETIC WAVE RADIATION PREVENTING OR SHIELDING MEANS 26
315094000 WITH CATHODE OR CATHODE HEATER SUPPLY CIRCUIT 17
315088000 AUTOMATIC SUBSTITUTION OF THE LOAD DEVICE OR ELECTRODE 13
315194000 REGULATION OF THE CONTROL CURRENT AND/OR POTENTIAL APPLIED TO DISCHARGE CONTROL DISCHARGE DEVICE LOADS BY PHASE SHIFTING MEANS 11
315289000 SURGE GENERATOR OR INDUCTANCE IN THE SUPPLY CIRCUIT 7
315137000 POLYPHASE A.C. SUPPLY 6
315108000 CONFINED GAS OR VAPOR-TYPE LOAD DEVICE WITH PRESSURE REGULATING MEANS 3
20130175927PLASMA TREATMENT APPARATUS USING LEAKAGE CURRENT TRANSFORMER - Provided is a plasma treatment apparatus using a leakage current transformer, the apparatus, including: a chamber which provides a closed space in which plasma is formed, and receives a treated sample in an inner part thereof; an exhaust unit for forming the inner part of the chamber in a vacuum state; plasma generation electrodes fixed in the chamber, positive and negative poles of which are installed to be opposed to each other; a variable power supply which is installed in an outer part of the chamber and supplies a power source to the plasma generation electrodes; and a leakage current transformer which is installed between the variable power supply and the plasma generation electrodes and adjusts voltage and current applied to the plasma generation electrodes.07-11-2013
20120161631PLASMA LIGHT SOURCE SYSTEM - A plasma light source system includes a plurality of plasma light source 06-28-2012
20130169156Field emission device - A field emission device is configured as a heat engine.07-04-2013
315361000 PLURAL CONTROL STATIONS 2
20090072766Multi-way sensor switch - A system for controlling a load circuit is disclosed. The system includes a plurality of multi-way sensor switches for mounting in an electrical boxes and coupling to the load circuit. Preferably, each of the multi-way sensor switches includes a tactile switch for manually opening and closing the load circuit load circuit, a built-in sensor for automatically opening and closing the load circuit in response to a level of detected motion and a micro-processor for generating status signals. The status signals are transmitted between each of the multi-way sensor switches over a traveler wire that is electrically coupled to each of the multi-way sensor switches. The micro-processor then uses the status signals to synchronize the operation of each of the multi-way sensor switches to allowing the multi-way sensor switches to operate in a true three-way fashion.03-19-2009
20100052576RADIO-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
315177000 LOAD DEVICE IN THE PRIMARY AND SECONDARY CIRCUIT OF THE SUPPLY TRANSFORMER 2
20100289414TWO-STAGE BALANCER FOR MULTI-LAMP BACKLIGHT - A two-stage balancer for a multi-lamp backlight is electrically connected to a driving unit through a driving transformer. The two-stage balancer includes a plurality of first balancing transformers, second balancing transformers, and lighting units. Each of the first balancing transformers is electrically connected to the corresponding second balancing transformers to form a two-stage structure. In addition, a primary winding and a secondary winding of the second balancing transformer is electrically connected in series to one lighting unit, respectively, to form a circuit loop. Further, each of the circuit loops is electrically connected in parallel. Whereby the two-stage balancer provides much better current balance between the parallel circuit loops, and outputs a sinusoid-like driving current to increase lighting efficacy and further maintain uniform brightness of the multi-lamp backlight.11-18-2010
20090102390CIRCUIT ARRANGEMENT FOR OPERATING A HIGH PRESSURE DISCHARGE LAMP - A circuit arrangement for operating a high pressure discharge lamp includes a voltage transformer, a load circuit which is supplied by the voltage transformer and provided with connections for the high pressure discharge lamp (La), a choke (L04-23-2009
315840510 PULSE STORING SYSTEMS OF THE GASEOUS DISCHARGE-TUBE TYPE 1
20110254447Discharge lamp lighting apparatus - A discharge lamp lighting apparatus includes a capacitor, a charge circuit for charging the capacitor, a switching element, a gate driving circuit that controls ON and OFF states of the switching element, a simmer current supply circuit for passing simmer current through a discharge lamp, a starting circuit that impresses high voltage to a starting electrode, and an electric discharge sequence control circuit that generates the gate signal and the starting signal. When lighting the discharge lamp, a sequence of the gate signal corresponding to an alternating repetition of the ON and OFF states of the switching element is generated. Before outputting the starting signal, the switching element is ON as a stand-by state. Then the sequence starts when the starting signal is outputted.10-20-2011
315184000 THREE OR MORE LOAD DEVICES CONNECTED BETWEEN DIVERSE PAIRS OF PAIRED CONDUCTORS 1
20130181618Organic Electroluminescent Display Device - The present invention overcomes image defects such as the brightness inclination or smears by reducing the line resistance of a power source bus line which supplies electricity to organic EL elements. A plurality of pixels which are arranged in a matrix array is connected to power source lines, and the plurality of power source lines are connected to a power source bus line. Both ends of the power source bus line are connected to a power source part via a FPC. By supplying electricity to both ends of the power source bus line from the power source part, the line resistance of the power source bus line can be reduced.07-18-2013

Patent applications in all subclasses Electric lamp and discharge devices: systems