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8074864 |
Ignition source system for an exothermic reaction mold device
An ignition source system for an exothermic reaction mold device for welding conductors. The system includes a crucible in a block with an open top so that the crucible receives an exothermic weld...
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8063339 |
Welding 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...
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8049141 |
Method of rating a stick electrode
A method of rating the arc maintainability of an electric arc welding stick electrode by creating an arc between the electrode and a workpiece; moving the electrode along the workpiece while...
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7946466 |
Alternative ignition source system for an exothermic reaction mold device
An alternative ignition source system for an exothermic reaction mold device for welding conductors. The system includes a crucible in a block with an open top so that the crucible receives an...
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7919728 |
Welding current controlling method in arc welding process using consumable electrode upon detection of constriction
A welding current controlling method is provided for an arc welding process using a consumable electrode and including an alternate repetition of a short-circuiting state and an arc generating...
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7880119 |
One 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...
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7858903 |
Constant current welding power control system and method
A technique is disclosed for controlling a constant current regime, such as for stick welding. The regime includes a dig segment or regime in which current is increased as voltage decreases. The...
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7820943 |
Stick 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...
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7777447 |
Battery powered welder system utilizing vehicle powered AC inverter
A system and method, in certain embodiments, adjusts a charging output based on capabilities of various power sources. The system and method may be used to charge a variety of equipment such as...
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7745758 |
Arc 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...
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7638734 |
Method 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),...
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7385159 |
Output 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...
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7329833 |
System 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...
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7321106 |
TIG 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,...
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7301122 |
Inline 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...
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7265318 |
System 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...
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7186944 |
Method 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...
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7183517 |
Portable 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...
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7109433 |
Method 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...
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6998574 |
Welding 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...
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6835910 |
Welding 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...
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6784394 |
Ball 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...
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6777638 |
Plasma 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...
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6703578 |
Exothermic 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...
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6573475 |
Welding 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...
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6570131 |
Electric 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...
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6483077 |
Method and apparatus for initiating, directing and constricting electrical discharge arcs
A method and associated apparatus for initiating and guiding an electrical discharge arc. This method preferably comprises the steps of: providing a laser beam through a predetermined gas...
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6459958 |
Operation data display device for robot
An operation data display device for a robot allowing an operator to recognize operation data on a plurality of operations performed by the robot at a time. When an arc start command is read out...
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6423937 |
Arc ignition arrangement
The invention relates to an arrangement for contact arc ignition in manual TIG welding and to a method for welding with this arrangement. The arc is established by lifting the welding torch (12)...
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6388232 |
Starting and welding device for DC TIG welder and method of operating same
A DC TIG welder operable at a set low current level under about 5 amperes in a welding circuit including an electrode separated from a workpiece by a gap, the welder having an output welding...
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6384374 |
Spark gap assembly for a welding power supply
A spark gap assembly for a welding power supply includes at least one pair of spark gap points and a housing base including at least one base groove for axially aligning the spark gap points. Point...
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6316745 |
Arrangement with transfer of measured values
The invention relates to an arrangement for material transport and/or energy transport by means of electric arc. Measured values are transferred with suppression of disturbances from the HF device...
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6249718 |
Method for tracking joints and edges for welding operations
A method for automatically tracking the joint between a first component and a second component, or the edge of a component, a welding operation. A preliminary path is defined for the joint or edge...
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6156999 |
Method and device for welding arc ignition for arc welding apparatus
Method and device for welding arc ignition of an arc welding apparatus providing a reduced level of high frequency disturbances. A welding electrode and a workpiece are connected with a welding...
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6137079 |
TIG welding torch permitting improving striking the welding arc
The invention relates to an electric arc welding torch comprising a torch body having an electrode holder (3) and a nozzle (4), said nozzle (4) being formed with at least one nozzle partition (2)...
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6107602 |
Switchable power supply with electronically controlled output curve and adaptive hot start
A welding power supply that includes a series resonant converter, including at least one switch and at least one capacitor is disclosed. The converter includes a switching circuit including an...
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6087628 |
Method and apparatus for controlling a welding power supply
A welding machine that includes a power supply having at least one control input is described. The power supply is capable of providing an electrode positive and an electrode negative output. Also,...
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6075224 |
Method of and apparatus for initiating a welding arc
A method and apparatus for initiating a welding arc includes a controller coupled to a power circuit for enabling the power circuit a predetermined time after an arc starter circuit has applied an...
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6066831 |
ARC start ancillary apparatus
In an arc start ancillary apparatus, which is connected in parallel to a welding power source for supplying electric power necessary for arc discharge between an electrode and a base metal, for...
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6034350 |
Method and apparatus for initiating a welding arc using a background circuit
An apparatus for initiating a welding arc during a lift arc start. The apparatus includes a power circuit to provide welding power to a power output, a background circuit to provide background...
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5925267 |
Plasma torch having a bypass unit
There is disclosed a plasma torch for performing a working operation with respect to a workpiece (8) by flushing out of a torch nozzle (2), a plasma arc drawn from an electrode (1) together with a...
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5916464 |
Welding force feedback wire feed system
A MIG and Flux Core wire feed and containment system for filler wire distribution for both manual and robotic underwater and terrestrial welding applications has a sensor feedback pressure sensor...
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5877952 |
Power supply apparatus with initial arcing sustaining circuit
Power supply apparatus includes a converter which converts a commercial AC voltage into a DC voltage. An inverter converts the DC voltage into a high frequency voltage. The high frequency voltage...
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5861604 |
Arc welder and method providing use-enhancing features
A "hot start" method for arc welding includes selecting a first weld current, setting a time interval, striking an arc, flowing a second, higher weld current through the welding rod and then, after...
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5852278 |
Arc welding and arc plasma cutting machines having improved DC high-voltage generator
An arc welding and arc plasma cutting machine having a dc high-voltage generator is provided. The dc high-voltage generator includes a first dc power source, a second dc power source, an one-way...
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5828175 |
Circuitry for operating a glow discharge path
The circuitry for operating a glow discharge path (GES) comprises a bridge circuit (BC) comprising a polarity switch (S1) and an ignition pulse circuit (ZIS1) in a first bridge branch (B1) and a...
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5773792 |
ARC welding machine and plasma cutting machine
In an arc welding machine and a plasma cutting machine, by connecting the output of a second DC power supply unit to a circuit fed by a first power supply unit, a DC high voltage from the second DC...
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5760372 |
Arc welder
An arc welder includes an inverter for converting a DC voltage to a RF voltage which, then, is rectified by a rectifier. The output of the rectifier is smoothed by a DC reactor. A RF generator...
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5753888 |
Stabilization and firing circuit for a power source of a cutting or welding system and method of stabilizing and firing same
The cutting or welding system includes a power source having, in one embodiment, a stabilization circuit for reducing arc rectification and, in another embodiment, a number of firing circuits for...
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5714731 |
Welding power supply arc starter
A method and apparatus for arc welding, particularly starting an arc is disclosed. A welding power source that provides a welding current to an electrode and a workpiece includes a source of...
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