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Class 219/130.4 - With arc ignition and stabilization arrangements


Subclass of Class 219 - Electric heating
Definition: Subject matter including circuit means to initiate and maintain
No. of patents: 144
Last issue date: 11/22/2011


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NumberTitleIssue Date
8063339Welding system toroidal spark gap method and system
A spark gap device is described such as for use in welding systems. The device receives a high voltage, low current input signal and produces high frequency waveform output. The device includes one or more toroidal members surrounding a rod-like member with an annul...
11/22/2011
7880119One sided electrode for manufacturing processes especially for joining
A process whereby a one sided electrode is allowed to discharge to essentially its own potential field is presented. The process may be utilized for joining by discharging particles as well as for spot welding or other heating purposes. Examples of several uses are ...
02/01/2011
7820943Stick arc welder with low voltage start
A system and method for forming an arc between an electrode and a workpiece is disclosed. The present invention includes a method of initiating an arc that includes comparing voltage across output terminals of a stick welder to a voltage threshold, and if the voltag...
10/26/2010
7745758Arc start method in consumable electrode type arc welding method
To provide an arc start method in a consumable electrode type arc welding method capable of firmly executing arc start and capable of executing high quality high speed welding by restraining a welding defect from being brought about therefor, at a portion of a wire ...
06/29/2010
7638734Method and circuit for contactless ignition of a welding arc with high frequency ignition pulse packets
The invention relates to a method for the contactless ignition of a welding arc, in addition to a circuit (28) for the contactless ignition of an electric arc, comprising a charging circuit (31), at least one pulse capacitor (30), a decharging c...
12/29/2009
7385159Output stage for an electric arc welder
An auxiliary OCV boost circuit for the power source of an electric arc welder to perform a welding process between an electrode and a workpiece, which power source has a main positive voltage output with a first voltage and a main negative voltage output with a seco...
06/10/2008
7329833System for improved high-frequency arc starting of a welding process
A welding gun is disclosed that includes an electrode configured to effectuate a welding-type process and a non-conductive nozzle configured to at least partially surround the electrode. The welding gun also includes a conductive casing at least partially surroundin...
02/12/2008
7320425Low-profile capillary for wire bonding
A wire bonding tool includes a first cylindrical portion having a first outside diameter and a second cylindrical portion adjacent the first cylindrical portion. The second cylindrical portion has a second outside diameter, the second outside diameter being less tha...
01/22/2008
7321106TIG welding torch
An improved TIG welding torch with a gas nozzle surrounding the fixed electrode and using a high frequency generator remote from the torch to selectively create a short burst of high frequency, high voltage to start or sustain an arc wherein a conductive layer is af...
01/22/2008
7301122Inline spark gap assembly
A spark gap point and spark gap assembly for a welding-type device are disclosed for igniting and stabilizing a welding-type arc. A double-headed spark gap point having spark gap surfaces on two ends is incorporated into a spark gap assembly with a pair of single-he...
11/27/2007
7291808Method for setting parameters in welding devices
The invention relates to a method for setting a parameter for external control units (30) of a welding device (1), whereby the welding parameters can be selected and set using different control elements (27) and indicating elements (28) o...
11/06/2007
7288741Arc welder
An arc welder comprising: a rectifier circuit 2 which rectifies an alternating current 1 to a direct current; an inverter circuit 3; a transformer 4; a second rectifier circuit 5 which rectifies an output of the transformer 4
10/30/2007
7265318System and method for variable hot start of a welding-type device
A system and method for a variable hot start of a welding-type device is disclosed. The variable hot start includes determining at least one of a plurality of parameters of a welding-type device including a desired V/A output for a welding-type process. The variable...
09/04/2007
7256368Welding and tack welding method involving the use of a non-fusing electrode
The invention relates to a welding method involving the use of a non-fusing electrode (12) according to which the electrode (12) is provided with power from a power source once the arc (11) between the electrode (12) and the workpieces (
08/14/2007
7255476On chip temperature measuring and monitoring circuit and method
A device temperature measurement circuit, an integrated circuit (IC) including a device temperature measurement circuit, a method of characterizing device temperature and a method of monitoring temperature. The circuit includes a constant current source and a clampi...
08/14/2007
7240717Multiple ignition source exothermic reaction mold device
A multiple ignition source exothermic reaction mold device. The mold device includes a crucible in a block with an open top for receiving exothermic reaction powder. A lid covering the open top has an opening therethrough. A receptacle in the lid is in communication...
07/10/2007
7233463Method and apparatus for detecting electrical faults and isolating power source from the electrical faults
The present invention is a method and apparatus for protecting a power supply from electrical faults. The present invention operates substantially independently of the current drawn by the load. In addition, the present invention includes a time delay circuitry for ...
06/19/2007
7227095Wire bonders and methods of wire-bonding
Wire bonders and methods of wire-bonding are disclosed herein. In one embodiment, a method includes attaching a wire to a terminal of a microelectronic component and generating an arc between a first electrode and a second electrode to sever the wire at a point at l...
06/05/2007
7186947Process monitor for laser and plasma materials processing of materials
A method for monitoring the processing of a workpiece includes directing an incident laser beam onto the workpiece and measuring a signal emitted from the workpiece. At least two signals are generated by a detector based upon the emitted signal. A workpiece processi...
03/06/2007
7186944Method and apparatus for autodetection of plasma torch consumables
A method and apparatus for automatically determining a consumable type when a consumable is disposed within an electrode holder of a welding-type system is disclosed. The invention includes a detector assembly that measures a physical characteristic of a connected c...
03/06/2007
7183517Portable welding-type apparatus with interchangeable energy storage device
The present invention is directed to a portable welding-type power source including a removable energy storage device configured to provide a first voltage output and a boost circuit connected to the energy storage device and configured to boost the first voltage ou...
02/27/2007
7109433Method and apparatus for initiating welding arc using chemical spray
Methods and apparatus for initiating an arc (e.g., a welding arc) by placing liquid droplets containing ions in the gap between an electrode and a workpiece. This is done while a potential difference is applied between the electrode and the workpiece. The presence o...
09/19/2006
7091449Voltage regulated MIG welding using a constant current power source
A system and method of duplicating CV mode of operation with a CC power includes a wire feeder designed to automatically adjust the speed of which consumable wire is delivered to a weld so as to maintain a target voltage set by a user. The wire feeder is designed to...
08/15/2006
7032814Coded welding consumable
Information pertaining to characteristics of consumables such as metal welding electrode wire and shielding gas and which characteristics are useful in connection with adjusting welding parameters in an arc welding process and/or selecting between operating modes in...
04/25/2006
7022935Plasma-cutting torch with integrated high frequency starter
The present invention is directed to a system including a plasma cutting torch having an output electrode and a plasma cutter starting circuit configured to generate a pilot arc at the output electrode. ...
04/04/2006
7009139Method and apparatus for composite YAG laser/arc welding
A combined YAG laser/arc welding apparatus performs a welding operation with a large depth of fusion and a deep fusion at a high efficiency. The welding apparatus includes an arc electrode which targets a point on a member being welded where a laser beam from a YAG ...
03/07/2006
6998574Welding torch with plasma assist
An electric arc welding torch having a central conductive contact tube for electrical contact between a power source and a welding wire moving through the contact tube toward a workpiece, a conductive sleeve concentric with the tube to define an annular chamber betw...
02/14/2006
6995337Power source with saturable reactor
In a power source for an electric arc welder including an inverter having two primary circuits connected in a series circuit across the DC bus of an input rectifier where each primary circuit comprises a capacitor parallel with a primary winding section and a switch...
02/07/2006
6994244Exothermic welding
An assembly and method are disclosed for exothermic welding including a mold which is formed of a material which withstands exothermic welding temperatures, and includes a weld cavity therein for positioning at least two members which are to be exothermically welded...
02/07/2006
6974932Method and apparatus for welding
A method and apparatus for welding include initiating a pulse welding process includes initiating a welding arc by providing CC type welding power, maintaining the arc by providing CV type power. Then, pulse type welding power is provided. The method and system can ...
12/13/2005
6947802Centralized control architecture for a laser materials processing system
Apparatus, systems, and methods for monitoring the processing of a workpiece that includes directing an incident laser beam onto the workpiece and using an optical detector for measuring a signal emitted from the workpiece as a result of the incident laser beam. The...
09/20/2005
6917501Electrostatic discharge protection apparatus and method employing a high frequency noncoupled starter circuit
An apparatus and method for providing electrostatic discharge protection. An exemplary micro tube spark gap type electrostatic discharge protection device comprises first and second separated spark electrodes hat form a spark gap therebetween. A high frequency nonco...
07/12/2005
6911618Method of producing minute metal balls
An object of the present invention is to provide a producing method by which minute metal balls having a high sphericity or roundness and a uniform diameter. The present invention provides a method of producing minute metal balls, comprising the steps of cutt...
06/28/2005
6835910Welding apparatus and method
A self-contained crucible assembly for forming a weld between a pair of metal articles, includes a container with side walls and a fusible bottom, a refractory material lining the side walls, an exothermic weld material within the container, an ignitor partially wit...
12/28/2004
6784394Ball formation method and ball forming device used in a wire bonding apparatus
A ball forming method and device used in a wire bonding apparatus in which a discharge is caused to occur by applying a high voltage between an electric torch and a tip end of a wire that extends out of a lower end of a capillary so as to form a ball at a tip end of...
08/31/2004
6777638Plasma arc torch and method of operation for reduced erosion of electrode and nozzle
There are provided a plasma arc torch and associated methods for selectively switching between a working mode and a standby mode. An electric arc is established between an electrode and a workpiece, and the torch is operated selectively in the working and standby mo...
08/17/2004
6703578Exothermic reactions and methods
Exothermic reaction mixtures are electrically ignited with a low cost foil strip of two conductive strips separated by a layer of insulation. One or more holes are formed in the ignitor to create shaped spark plasma on one side and a venting plasma on the...
03/09/2004
6573475Welding power supply with output inductor
A method and apparatus that provides welding-type power is disclosed. It includes a power source, a welding output, an inductor winding and an auxiliary winding. The inductor winding is in electrical communication with the power source and the welding out...
06/03/2003
6570131Electric arc welder with arc starter
In a standard electric arc welder of the type having a main power supply with an off condition directing no current across an electrode and a workpiece and an on condition directing welding current between the electrode and the workpiece and through a cho...
05/27/2003
6566625Welding apparatus and method
The invention provides a plasma welding or brazing process in which a direct current pilot arc is maintained throughout the process. The process comprises the steps of setting a pilot arc power supply (6) to a relatively high level, generating a high volt...
05/20/2003
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