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7375305 |
System for assembling welding apparatus
A welding apparatus having a system to facilitate its assembly. The apparatus is assembled by affixing a pair of molded end panels to a molded base and each of the end panels has a specially...
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7339134 |
Extension lift truck modification
An apparatus for welding, including a lift mechanism for lifting a personnel platform attached to an end of the lift mechanism, a drive system for moving the apparatus, where the drive system...
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7326879 |
Apparatus for a welding machine having a cooling assembly mounted to a mid-plane baffle for improved cooling within the welding machine
A mid-plane baffle or plate having a fan mounted thereto to dissipate heat within a welding machine is provided. By centrally positioning a baffle and mounting a circulating fan thereto, cooling...
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7323658 |
Method and apparatus for welding and control thereof
A method and apparatus for welding includes one or more of a welding type power source, a feedback circuit, a wire feeder and a controller. The controller preferably has an eta control circuit...
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7319206 |
Method and apparatus for receiving a universal input voltage in a welding power source
A method and apparatus for providing a welding current is disclosed. The power source is capable of receiving any input voltage over a wide range of input voltages and includes an input rectifier...
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7307239 |
Welding power supply with laminated bus
A method and apparatus for welding with a bus is disclosed. The bus preferably is laminated, with two conductive plates separated by an insulator plate. The bus preferably is disposed in a housing...
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7288741 |
Arc 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...
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7288740 |
Welding device having multiple protective covers and connection paths
A housing of a welding-type device includes a bezel which encloses a plurality of electrical receptacles and a plurality of terminal posts of the welding-type device. The bezel has a first and a...
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7274000 |
Power source for high current welding
An inverter based power source for electric arc welding where the power source includes a high switching speed inverter for driving the primary side of an output transformer that has a primary...
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7268318 |
Welding equipment
A welding voltage judgment portion 16 of judging to see if a predetermined value of welding voltage inputted from an input device 11 falls within a predetermined certain range is provided, and...
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7235759 |
Method and apparatus for receiving a universal input voltage in a welding, plasma or heating power source
A method and apparatus for providing welding type power is disclosed. The power source is capable of receiving any input voltage over a wide range of input voltages and includes an input rectifier...
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7220940 |
System for welding with multiple arcs
A system for welding with a first and second arc between a first and second electrode, respectively, and a common workpiece, where each of the electrodes is driven by a power lead from a single...
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7215542 |
Electronic device having heat-dissipating structure for socket
An electronic device having a heat-dissipating structure for a socket is disclosed. The electronic device comprises a case, a plurality of electronic components disposed in the case, an airflow...
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7214905 |
Cover for a welding-type power source
A welding system comprising a welding-type power source and a protective cover for the welding-type power source. The protective cover may be comprised of a synthetic fabric and a polymeric fluid...
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7183516 |
System and method for welding with multiple arcs
A system and method for welding with a first and second arc between a first and second electrode, respectively, and a common workpiece, where each of the electrodes is driven by a single power...
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7126084 |
Welder
A portable welder includes a welder housing. The housing has front and rear vertical end surfaces and left and right side surfaces. The housing further has a horizontal top surface extending...
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7115834 |
Method and apparatus of electronic selection of an output mode of a welding power source
The present invention provides a method and apparatus of electronically selecting an output mode of a welding power source. The invention includes operational circuitry that electronically...
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7109438 |
Power supply apparatus for arc-utilizing apparatus
An input rectifier of a power supply apparatus rectifies a selected one of two, higher and lower AC voltages applied to it. First and second inverters are connected in the output of the input...
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7109437 |
Electric ARC welder with background current
An electric arc welder comprising a power source driven by a main input transformer with a secondary winding creating an output pulsating current across the electrode and workpiece of a welding...
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7105777 |
Dedicated wire feed speed control
A MIG welder and method of controlling a MIG welder which includes a wire speed selector that is used to generate a control signal which controls both the wire feed speed of a consumable electrode...
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7078652 |
Method and apparatus for welding with high frequency protection
A method and apparatus for providing welding-type power is disclosed. The power supply has two output lines, and two inductances that are magnetically coupled, or a common mode inductance, in the...
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7005608 |
Cooling system for arc welding
An electric arc welder with an internal compartment containing heat generating electrical components where the compartment has an end wall defining the outlet wall of a plenum chamber and the end...
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6998573 |
Transformer module for a welder
An electric arc welder comprising a high switching frequency inverter for driving the primary of an output transformer where the output transformer has a plurality of modules forming the secondary...
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6995337 |
Power 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...
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6977358 |
Welder with integrated gas bottle
A welder having an integrated gas cylinder is disclosed. The welder has a power source constructed to condition and output an electrical signal suitable to welding and a gas cylinder disposed in an...
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6897406 |
Electric welder
A welder comprises a source of electrical welding current. A housing houses the source and has front and rear walls and a top wall. A control device, for controlling a condition of the welder, is...
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6888099 |
Wind tunnel for a welding power supply housing
A system and method for a welding power supply housing is disclosed. The power supply housing includes a U-shaped panel positioned between two louvered end panels and a base. The combination of the...
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6870131 |
Mounting receptacle for welding apparatus component
A welding apparatus having a specially designed receptacle that is formed on the rear molded plastic panel that is affixed to an enclosure in assembling the welding apparatus. A gas valve having a...
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6818860 |
Portable welder with integral battery charger
A portable electric arc welder having a power source creating a DC voltage between two output terminals to drive a welding device and an integrated, internal battery charger with an input stage and...
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6777649 |
Method and apparatus for welding
A method and apparatus for providing welding power is disclosed. It includes a transformer with a primary winding and an output secondary winding. The ac side of a rectifier circuit is connected to...
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6747246 |
Integrated mobile tool and welder power supply system
An integrated mobile tool and welder power supply system includes a primary DC power source coupled to a power supply chassis for supplying DC power to DC-operated power equipment such as welders...
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6723954 |
Straight polarity metal cored wire
A core composition of a metal-cored wire comprising a combination of graphite and potassium compounds has been proven to stabilize the arc in a straight polarity welding configuration. In...
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6720527 |
Power cord for a welding-type power supply
A power cord assembly for a welding-type power supply includes a power cord and a plurality of adaptors. The power cord is adapted for attachment to the welding-type power supply and is capable of...
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6713721 |
Method of designing and manufacturing welding-type power supplies
A method of manufacturing a plurality of welding-type systems, and the systems, are disclosed. The power supplies are each suitable for at least one of a plurality of processes, and have “N”...
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6707000 |
Consumables storage box
A storage box for welding and plasma cutting applications is disclosed. The storage box is configured to be mounted in an opening in the chassis of a welding-type power supply. The storage box is...
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6653596 |
Fuel cell operated welder
An electric arc welder powered by a plurality of liquid organic fuel cells. The fuel cells use a methanol/water mixture as the organic feed. The fuel cells produce carbon dioxide as a reactive...
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6642481 |
Integrated welding control and power supply using phased control power technology
A method and apparatus for welding with a robotic welder is disclosed. The system includes a power supply, preferably phase controlled, a controller and a robotic interface. The components are in a...
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6608285 |
Hybrid arc/laser welding with earth contactor position control
Hybrid welding process using a laser beam and an electric arc to produce a weld bead. The electric arc is established between an electrode connected to a first pole of a current source and at least...
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6593546 |
Arc welding generator with input voltage adapting regulator stage
A welding generator comprising an input rectifier stage, a bank of leveling capacitors, an inverter block, a transformer, a rectifier stage and an inductor downstream of which the arc forms and an...
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6570128 |
Generator for arc welding machines
A generator for arc welding machines provided with an input rectifier stage which has a unit power factor and comprises an inductor, on the mains side, two diodes and two electronic switches, one...
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6504132 |
Electric arc welder for variable AC input
An electric arc welder with a variable AC voltage input of up to 600 VAC and a rectifier to provide a DC link, a driven high frequency boost stage with first and second leads connected to the DC...
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6489591 |
Cooling air circuits for welding machine
A welding machine power supply has two circuits for cooling air. A primary circuit comprises a magnetics chamber and a second chamber. A fan between the magnetics and second chambers draws...
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6414267 |
Method and apparatus for control of a welding power source
An apparatus and method is disclosed for series inductance-reactance control of a transformer in a welder. The transformer includes a transformer core configured to conduct magnetic flux and at...
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6414266 |
Planocentric gear for amperage indicator on welding machine
A shunt controlled welding machine has a regulator handle and a scale that indicates output amperage on the same panel of the welding machine case. The handle attaches to a shaft that rotates about...
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6384373 |
Welding power supply having improved supplemental power circuit
A power circuit for a welding power supply includes a control circuit, a power conversion circuit, a filter circuit, and a supplemental power circuit. The control circuit is configured to provide...
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6365868 |
DSP based plasma cutting system
This invention relates to methods and apparatus for controlling a power supply of a plasma arc system. According to the method, any AC input voltage within a range of input voltages is provided...
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6344628 |
CV background for welding
First and second CV power sources are connected in parallel. The first CV source provides an output sufficient for welding. The second CV source also has an output sufficient for welding, but at is...
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6315186 |
Control device for a welding apparatus
The invention relates to a control device (4) for a welding apparatus (1) or a welding facility, comprising a welding torch (10) connected to the welding apparatus (1) via connecting lines, wherein...
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6313431 |
Plasma cutter for auxiliary power output of a power source
A plasma arc cutting power supply, and method of providing plasma cutting power, is disclosed. It includes a source of power having, preferably an engine or transformer based power source, that...
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6286748 |
Welding wire feeder
A portable feeder for welding wire used to charge a welding wire guide system with a new coil of wire upon depletion of the previous welding wire coil. A casing includes a drive roller driven by a...
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