Class 219/113 - Condenser discharge

Subclass of Class 219 - Electric heating
Definition: Subject matter having a condenser to store the energy.
No. of patents: 40
Last issue date: 07/20/2010

Number	Title	Issue Date
7759597	Method for manufacturing a gas generator For manufacturing a gas generator (1), a tubular body (10) having an opening (14) in a circumferential wall (12) and a housing part (16) having an attachment end (26) are provided. The geometry of a proximate rim (20)...	07/20/2010
7307236	Charge and weld gating system with safety circuit A weld circuit for use in a welder is provided. The weld circuit comprises a charge section, a capacitor section, and a weld section. The charge section includes a first plurality of solid state switches, e.g., silicon controlled rectifiers (charge SCRs), the capaci...	12/11/2007
7095181	Method and apparatus for controllably generating sparks in an ignition system or the like An apparatus for controllably generating sparks is provided. The apparatus includes a spark generating device; at least two output stages connected to the spark generating device; means for charging energy storage devices in the output stages and at least partially ...	08/22/2006
7041934	Micro-welder A micro-welder, by which a superfine wire such as a lead wire can be welded on a desired position of a parent material with a minimum welding area, including: a power source having a capacitor-charging device for generating a predetermined voltage and a voltage cont...	05/09/2006
6555777	Method of manufacturing bimetal slippers A method of manufacturing male bimetal slippers includes the steps of forming a stem having opposite first and second ends; rigidly affixing a ball on the first end of the stem to form a male slipper body; and capacitance discharge welding a wear pad to t...	04/29/2003
6459065	Resistance welding power supply apparatus Disclosed is a resistance welding power supply apparatus which comprises a large-capacitance capacitor for storing resistance welding energy in the form of electric charges, a charging circuit for charging the capacitor to a predetermined voltage, four sw...	10/01/2002
6455802	Resistance welding power supply apparatus A resistance welding power supply apparatus comprises a large-capacitance capacitor for storing resistance welding energy, a capacitor charging circuit, a switching element electrically connected between the capacitor and one electrode of a pair of weldin...	09/24/2002
6410878	Method for producing a flame support The invention concerns a method for producing a flame support for a gas burner, which consists in producing disjointed metal fibres (10) in an alloy comprising iron, chromium and aluminium; assembling the fibres together under pressure; bringing the fibre...	06/25/2002
6013891	Welding apparatus and welding method, particularly resistance welding method The invention relates to a welding apparatus (1), particularly a resistance welding apparatus, comprising a control device (2), a charging device (10), at least one energy store (22 to 24), a switching device (33 to 35) and a consumer (51), the energy sto...	01/11/2000
5587092	Method of welding vanes into a shell for a torque converter A method of assembly of impeller (12) and turbine (14) shells (116) for torque converters (10). Vanes (116) are capacitance discharge welded with a high energy pulse into the shells (112)....	12/24/1996
5294768	Electrical supply circuit for the generation of separately controllable current pulses The circuit has a transformer on whose primary side there is a storage capacitor which can be charged and discharged in a controlled manner and to whose secondary circuit a load is connected. Two ancillary capacitors of the same capacitance are connected ...	03/15/1994
5192843	Pin attachment tool and method of capacitive brazing A method is provided to replace a damaged pin in a module for an integrated circuit assembly without damaging the circuit device or chip mounted in a circuitized substrate. This method comprises brazing a new pin to the base of the old pin by capacitive d...	03/09/1993
5149933	Welding control Voltage stored in a capacitor bank (12) of a capacitor discharge welding apparatus is modified in accordance with the magnitude of output energy actually delivered to the weld. After empirically determining capacitor bank voltage and output energy emloyed...	09/22/1992
5128511	Welding apparatus and transformer therefor A welding apparatus is disclosed to include an electrically insulating casing, first and second welding electrodes, and one or more welding transformer cores having toroidal cores, multi-turn primary windings and a single-turn secondary winding. The cores...	07/07/1992
5079083	Coated microwave heating sheet A coated sheet material is provided for wrapping, packaging or shipping food articles that are to be heated in a microwave oven. The sheet is formed from a paper or paperboard backing which is thermally and dimensionally stable when exposed to microwave e...	01/07/1992
5006405	Coated microwave heating sheet for packaging A coating sheet material is provided for wrapping, packaging or shipping food articles that are to be heated in a microwave oven. The sheet is formed from a paper or paperboard backing which is thermally and dimensionally stable when exposed to microwave ...	04/09/1991
4965860	Capacitor type welding power unit A capacitor type welding power unit incorporates a constant-current charging control circuit which serves to control a charging current being supplied to a capacitor so as to be substantially constant during the charging. By such a control circuit, which ...	10/23/1990
4788406	Microattachment of optical fibers One or more optical fibers are attached to an optical component element or supporting substrate by coating the peripheral surface of the optical fiber with a metallic layer and then positioning the metallic layer in electrical contact with a metal surface...	11/29/1988
4785159	Dental welding device and system A precision electric welding device is used for welding dental crowns and bridges in the mouth. The dental elements to be welded comprise dentally suitable metals, especially titanium and titanium alloys. The device comprises a welding gun and a base unit...	11/15/1988
4746783	Welding current control circuit for spot welder In a spot welder in which the electric charge stored in an electrolytic capacitor (1a) is discharged through a welding circuit 3 to perform a welding operation, in order to prevent the lowering of the welding performance due to the inversion in polarity o...	05/24/1988
4716267	Three phase high frequency spike welding system A resistance-type welder employing a three phase, pulsed power supply and a pair of opposed electrodes which a workpiece may be clamped under pressure, includes a microcomputer based control system for allowing precise selection and control of welding seq...	12/29/1987
4681999	Apparatus for welding dental elements A precision electric welding device is used for welding dental crowns and bridges in the mouth, the dental elements to be welded being made up of dentally suitable metals, especially of titanium and titanium alloys. The device comprises, in combination, a...	07/21/1987
4560852	Spike welding system having improved power supply A power supply for a pulse type electrical resistance welder includes an A.C. source of electrical power, a firing circuit for delivering spikes of current to a pair of welding electrodes and a precharging circuit for precharging the firing circuit with a...	12/24/1985
4476366	Controlled bonding wire ball formation Apparatus and method are described for rapid ball formation at the end of lead wire retained in the capillary wire holding tool of a ball bonding machine. A circuit is coupled between the cover gas shroud and lead wire for establishing controlled electric...	10/09/1984
4464556	System and method of accurately controlling the electrode voltage of a welding device The voltage supplied to the welding electrode of a welding system repeatedly and accurately charges an energy storage device by directly sensing the charging voltage across the storage device and comparing the sensed voltage to a reference voltage to prod...	08/07/1984
4458132	Welding apparatus and control system therefor A resistance-type welder employing a pulsed power supply and a pair of opposed electrodes between which a workpiece may be clamped under pressure, includes a microcomputer based control system for allowing precise selection and control of welding sequence...	07/03/1984
4449092	Capacitor charging circuit for discharge type welding tool The present invention provides a capacitor charging circuit for a discharge type welding tool. The circuit includes a rectifier for producing rectified pulsating currents, a capacitor to be charged, a thyristor between the rectifier and the capacitor. A p...	05/15/1984
4409461	Electrical resistance welder for nails used in an automatic nailing machine In an electrical resistance welder, whenever a material to be welded approaches the welding electrodes, a start signal is produced, so that welding current is supplied to the welding transformer in one direction for a certain period of time set by a time ...	10/11/1983
4390771	Bonding wire ball forming method and apparatus Method and apparatus for forming a ball at the end of bonding wire or lead wire in a capillary wire holding and bonding tool is described suitable for ball bonding of copper and aluminum lead wire to integrated circuit chips. A ball is formed by substanti...	06/28/1983
4357514	Welding method and apparatus This application relates to a method and apparatus for welding together small oxide coated components by driving a sharp edge or point of one part into a face of another part and then discharging electrical energy, for example, a capacitively stored elect...	11/02/1982
4350866	Discharge device and method for use in processing semiconductor devices An electrical discharge is applied to a wafer mounted in a wafer holder. The wafer includes at least one conducting region covered by an insulating layer. The discharge causes a conductive channel from the conductive region through the insulating layer. T...	09/21/1982
4339652	Power supply for percussion welding This percussion welding power supply supplies welding energy through an arc between two work pieces that are forced together during or immediately following arcing. The power supply comprises a welding transformer having a primary winding and a secondary ...	07/13/1982
4319118	Method of welding tantalum lead wires to tantalum capacitor anodes This application relates to a method and apparatus for welding together small oxide coated components by driving a sharp edge or point of one part into a face of another part and then discharging electrical energy, for example, a capacitively stored elect...	03/09/1982
4228340	Voltage regulated capacitive discharge welding power supply A welding power supply that includes a combination of series and shunt regulating circuits controlled by a single controller, in the charging circuit for a welding energy storage capacitor. The series circuit, which includes a series thyristor, regulates the s...	10/14/1980
4182949	Self-contained, portable underwater stud welder A self-contained, portable, underwater stud welder includes a hand-held welding gun and a battery powered backpack. The welder uses a bank of rechargeable nickel-cadmium batteries which charges a storage inductor, the energy of the inductor being transfer...	01/08/1980
4171477	Micro-surface welding This invention relates to a method and apparatus for wire bonding a variety of metals in the interconnection of semiconductor chips to electronic package substrate circuitries. A pair of electrically conducting bonding tip members are provided which are e...	10/16/1979
4117296	Process and apparatus for welding sheet metal coated with layers A method for the connection of sheet metal panels coated on at least one surface with a layer by the electrical fusin of a metal, wherein the improvement comprises the steps of supplying an electric current for the fusion of metal indirectly along the she...	09/26/1978
4014729	Method for bonding and plating with exploding foil Bonds are made between two work pieces by using foils exploded by electrical energy typically stored in a large capacitor. To increase the uniformity of the bond area, a foil having at least one slit cut in the direction of current flow is used. The foil ...	03/29/1977
4008117	Apparatus for bonding and plating with exploding foil Bonds are made between two work pieces by using foils exploded by electrical energy typically stored in a large capacitor. To increase the uniformity of the bond area, a foil having at least one slit cut in the direction of current flow is used. The foil ...	02/15/1977
3932724	Stud welding apparatus A capacitance discharge stud welding apparatus which comprises a housing. A coil is positioned in the housing and an armature is located within the coil and is movable between first and second positions relative to the coil. A stud chuck is provided for t...	01/13/1976

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Class 219/113 - Condenser discharge