Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


Including arc-power supplies

Subclass of:

219 - Electric heating

219050000 - METAL HEATING (E.G., RESISTANCE HEATING)

219121110 - By arc

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
219130210 With automatic output control (e.g., shortcircuit, infrared) 71
219130500 With predetermined time variation of arc voltage or current (e.g., programmed) 32
219133000 With generator (e.g., gas engine driven) 29
219132000 Remote control 8
219130400 With arc ignition and stabilization arrangements 2
20090084768PLASMA ARC POWER SUPPLY AND CONTROL METHOD THEREFOR - A plasma arc power supply with a simple structure and its control method enable shifting from a pilot arc to a main arc. A plasma arc power supply used in a plasma arc apparatus that processes a workpiece by forming a pilot arc between a main electrode and a nozzle electrode and subsequently forming a main arc between the main electrode and the workpiece includes N direct current power supply units (N≧2) having negative terminals connected to the main electrode and positive terminals to the workpiece, and a switch between the fourth power supply unit and the workpiece. The fourth power supply unit is connected to cause the nozzle electrode to have an opposite polarity to the main electrode. When the switch is open, the fourth power supply unit supplies a small current between the main electrode and the nozzle electrode while forming a pilot arc between them.04-02-2009
20120298641METHOD TO IMPROVE PROCESS STABILIZATION - Systems and methods for providing an improved start in a welding are provided. The system may include a power circuit and a control circuit: The power circuit may generate welding output power for a welding process. The control circuit may control the start of the welding process, for example, by generating a current pulse.11-29-2012
Entries
DocumentTitleDate
20100006551ENHANCED POWER FACTOR CORRECTION FOR WELDING AND CUTTING POWER SUPPLIES - Enhanced power factor correction for a welding-based power supply includes a controller that tracks a rectified input voltage waveform and detects zero-crossing events therein. The controller generates an ideal sinusoidal current reference signal synchronized by expected zero-crossings in the supplied power. The reference signal is used in a current control loop within the controller to control the power electronics such that the waveform of the current drawn by the power supply matches the waveform of the input voltage. The frequency of the supplied power may be calculated using the expected zero-crossings and used to adjust the expected zero-crossings.01-14-2010
20130056452WELDER - The system provides both a portable and appliance welding system. It can be use in the shop and field. In either location it can be plugged in or battery driven. When plugged in it can weld while charging simultaneously offering 100% duty cycle for heavy shop use, and a full range of metal thicknesses can be welded with ease. The system is implemented with a solid state high energy circuit; unrestricted and unfiltered, offering a wide spectrum of pure analog power. The systems is compact for maximum portability and use in remote field operations, yet can handle deep welds in a variety of metal compositions, conditions, environments, and sizes. The system uses a proven and robust storage medium of direct electric potential energy that is supplied by industrial batteries.03-07-2013
20090057285PORTABLE BATTERY POWERED WELDER - A portable battery powered welder is disclosed that is configured to operate without an external power source. The portable battery powered welder may include a battery coupled to a welding circuit and a wire feeder. Further, the portable battery powered welder may include a suitcase to integrally support and completely enclose the welding circuit, the battery, and the wire feeder. The suitcase may include a lateral access door having a hinge and a latch. Additionally, the wire feeder and a wire spool may be disposed in a region accessible by the lateral access door. The suitcase may also include an access panel disposed over a region containing the battery. The access panel may be mounted to the case via a snap mount and/or secured via fasteners. Finally, the suitcase may include a top handle and may be made of a lightweight, impact resistant, and flame retardant material.03-05-2009
20130062327TWO-STAGE SWITCH-MODE POWER SUPPLY FOR DRAWN-ARC STUD WELDING - A drawn arc welding device includes a welding tool, and an energy storage device coupled to a power source. A charging circuit is connected to the energy storage device replenishing the storage device. A discharge circuit is connected to the welding tool and energy storage device. The discharge circuit regulates and adjusts a welding current of the welding tool to a specified amount. Also disclosed is a process that includes charging the energy storage device, actuating the welding tool, energizing a pilot arc current, lifting the weld stud off a workpiece to draw the pilot arc, energizing a welding arc wherein the discharge circuit regulates a welding current of the welding tool to a specified amount, and plunging the weld stud into the workpiece and turning off the discharge circuit.03-14-2013
20100170880CAPACITOR CHARGE AND DISCHARGE CIRCUIT FOR FASTENER WELDING - A capacitor discharge (CD) fastener welding circuit including: an input voltage source; a rectifier bridge of diodes receiving the input voltage source; at least two capacitor charge switches linked with the rectifier bridge; at least one capacitor linked with the at least two capacitor charge switches; and at least two capacitor discharge switches linked with the capacitor and to welding output terminals.07-08-2010
20110284513WELDING CONSUMABLES AND CONSUMABLE HOLDERS - A welding torch with a welding electrode and a welding electrode holder is provided. One welding torch includes a securing mechanism and an insulated grip. The securing mechanism is configured to secure an exposed central portion of a welding rod bounded by flux covered first and second sides. The securing mechanism is also configured to make electrical contact with the central portion of the rod for arc welding with the first side. The insulated grip is configured to cover the second side of the welding rod.11-24-2011
20110290771ELECTRODE POSITION CONTROL METHOD FOR TANDEM ARC WELDING, ROBOT CONTROLLER FOR TANDEM ARC WELDING SYSTEM, AND TANDEM ARC WELDING SYSTEM - An electrode position control method according to the present invention includes a voltage detecting step of detecting voltages on a leading electrode and a trailing electrode that are brought into contact with a welding workpiece, a sensing step of detecting positional information of the welding workpiece from electrical changes in the voltages, a correction amount calculating step of calculating a correction amount for correcting for positional displacement of each of the leading electrode and the trailing electrode with respect to a weld line from the positional information, and a position correcting step of correcting the respective positions of the electrodes by adding or subtracting the correction amount.12-01-2011
20090184098SYSTEM FOR MEASURING ENERGY USING DIGITALLY CONTROLLED WELDING POWER SOURCES - A method and system for internally determining, within a welding power supply, the energy input into a weld during a welding operation. The method includes determining a total energy input into the weld during a first time period, and determining a length of the weld made during the first time period.07-23-2009
20090050613Methods, Apparatus And Products For Welding Rotating Work Pieces - An arc welding tool which includes a circular frame defining a passage for receiving a work piece, a carriage moveably positioned on the frame, and an electrical connector supported by the carriage, with an electrical path defined between the frame, carriage and electrical connector.02-26-2009
20080283511POWER CORD SYSTEM FOR WELDING-TYPE DEVICES - A system and method for powering a welding-type device from a plurality of distinct outlet configurations is disclosed. The power cord system includes a power cord having a plurality of conductors extending therethrough. An end of the power cord is constructed to engage an individual adapter of a plurality of adapters. Each of the plurality of adapters has a prong configuration that is different than a prong configuration of the other adapters such that each of the plurality of adapters is constructed to electrically connect the power cord to a uniquely configured outlet. A welding-type device according to the present invention is quickly and efficiently adaptable to operate at a plurality of different input power signals.11-20-2008
20130119033MOBILE WELDING SYSTEM AND METHOD - A mobile welding system has a mobile base for traversing a surface, proximate to a region to be welded. The mobile welding system has a lift, coupled to the mobile base and to a platform for moving the platform vertically proximate to the region. The lift is disposed between the platform and the mobile base. The mobile welding system has a robotic arm coupled to the platform. The mobile welding system has a welding torch, disposed on a first end of the robotic arm, for welding the region. The mobile welding system has a controller configured to cause the welding torch to move proximate to the region by causing at least one of the mobile base, the lift, and the robotic arm to move in at least one direction.05-16-2013
20130119034METHOD TO IMPROVE GMAW AND GTAW WELDING PERFORMANCE - A method of controlling a power source includes providing a power supply module. The power supply module includes a first circuit that has at least one first switch. The first circuit is configured to provide a welding current to an electrode of a welding system. The power supply module also has a second circuit that includes a load that is operatively connected to at least one second switch. The second circuit is configured to provide the welding current to the electrode through the load. The method also includes controlling the at least one first switch such that the welding current flows through the at least one first switch and to the electrode during a ramp up portion of a welding waveform and such that no current flows through the at least one first switch during a ramp down portion of the welding waveform. The method further includes controlling the at least one second switch such that the welding current flows through the load and to the electrode during the ramp down portion of the welding waveform. The ramp down portion takes the welding current to a predetermined value.05-16-2013
20090188902SYSTEM AND METHOD FOR CONFIGURING A TIG WELDING SYSTEM USING WORKPIECE CHARACTERISTICS - A system and method for configuring a tungsten inert gas (TIG) welding system includes a user interface to receive characteristics of the workpiece to select operational parameters for the TIG welding process. The characteristics of the workpiece may include workpiece composition or workpiece thickness. Workpiece material is translated to an output welding-type power that is alternating current (AC) power or direct current (DC) power. Workpiece thickness is translated to a specific output amperage. The operator does not need to have knowledge of operational parameters of the TIG welding system and can configured the system using workpiece characteristics.07-30-2009
20110220627SLIDEABLE WELDING POWER SOURCE HOUSING ASSEMBLY - An electric arc welder power supply housing assembly is described in which it is possible to clean internal component parts is achieved by positioning cooling components on a rail system. The rail system may include at least one telescoping track assembly. When the telescoping track assembly is engaged, the housing assembly is in an open position, thus providing access for the maintenance of internal components therein without having to disassemble unnecessary components or parts of the welding power supply.09-15-2011
20110220628WIRE FEED MOTOR CONTROL SYSTEMS AND METHODS - Wire feed drive assemblies having welding wire mounted thereon and a motor that rotates a wire feed roller to drive the weld wire toward a welding torch are provided. The wire feed drive assemblies also include a temperature sensor coupled to the motor and adapted to measure a temperature of the motor. The wire feed drive assemblies further include a motor controller coupled to the temperature sensor and the motor and adapted to receive temperature feedback from the temperature sensor and to utilize the temperature feedback to regulate a speed of the motor.09-15-2011
20090242532Method and Apparatus For Braking and Advancing a Welding Wire - A method and apparatus for providing welding-type power include a wire feeder that provides wire to an arc and a power supply that provides power to the arc. A reversible wire feed motor moves the wire to and away from the arc. A controller controls the reversible wire feeder motor to reverse at least once per process cycle, and/or controls the power source to provide a desired mean arc current, and/or controls the reversible motor in response to short detection and short clearing, and/or controls the reversal frequency in response to pool oscillation frequency. A wire feed motor output is slaved to an average of the reversible motor output. The controller may include various control modules, such as a mean arc current control module, and/or a short detection feedback circuit. The reversible motor is a stepper motor, that incrementally turns in a series of steps having a given angle in another embodiment. The controller includes a step size output and the given angle is varied in response to the step size output.10-01-2009
20100237052METHOD AND APPARATUS FOR ADAPTIVE GMAW SHORT CIRCUIT FREQUENCY CONTROL - A welding apparatus having a waveform compensation device, a power section coupled to the waveform compensation device which generates a welding waveform in accordance with a signal from the waveform compensation device, and a frequency detection device which detects at least one of a voltage, current and power of a welding arc and determines a shorting frequency of the arc. The waveform compensation device adjusts at least a portion of the welding waveform based on an output from the frequency detection device.09-23-2010
20100301030Systems and methods to modify gas metal arc welding and its variants - A welding system and method includes a main torch including a main electrode configured to form a first arc with a base metal; a first bypass torch including a first bypass electrode configured to form a second arc with the main electrode; and a second bypass torch including a second bypass electrode configured to form a third arc with the main electrode.12-02-2010
20100301029WIRE FEEDER WITH AUTO-CONFIGURE POWER SUPPLY - A wire drive system includes a wire feed motor for feeding welding wire in a continuous welding process. The wire drive system further includes a controller connected to the wire feed motor for driving the motor responsive to a command signal. The controller is capable of detecting the source of power from which the wire feed motor is driven wherein a first possible source of power is taken from the welding arc and wherein a second possible source of power is taken from the welding power supply.12-02-2010
20110000900INVERTER OUTPUT RECTIFIER CIRCUIT - In a power source of a welding system, an inverter rectifier output circuit and method for reducing the blocking voltages across saturable reactors associated with a rectifier coupled to a transformer winding in the inverter rectifier output circuit during both turn-on and turn-off transitions of the rectifier. At least a portion of a reverse recovery current associated with the rectifier is blocked by allowing blocking voltages to build across associated saturable reactors during a transition phase of the rectifier. During a turn-off portion of the transition phase, the blocking voltages are reduced using a RC circuit, thereby suppressing a peak voltage associated with the rectifier. During a turn-on portion of the transition phase, the blocking voltages are reduced using another saturable reactor in series with a free-wheeling diode.01-06-2011
20110108536ARC WELDING SYSTEM, SINGLE ARC WELDING SYSTEM, AND TANDEM ARC WELDING SYSTEM - An arc welding system according to the present invention includes a welding power supply for supplying welding power to a welding wire, a welding robot including a welding torch mounted to an arm fore end thereof, and a controller for controlling the welding power supply and the welding robot. The welding power supply and the controller perform communication using digital signals, and the welding power supply outputs, to the controller, a welding power-supply feedback signal obtained at the time of inputting of a welding power-supply sync signal. With that configuration, accurate arc tracking can be realized by using the digital signals.05-12-2011
20090071949USER INTERFACE FOR WELDING POWER SUPPLY - A welding power supply includes a user interface that allows the operator to adjust one or more welding parameters comprising a welding sequence for a welding process. The user interface may include a display, which may be a graphical display depicting the welding sequence and the one or more welding parameters. The user interface may further dynamically depict a pictograph, icon or other graphical image showing how changes to the one or more welding parameters will affect the welding process, which in an exemplary manner may be the welding bead profile and/or the welding arc profile.03-19-2009
20100193487Method 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 that rectifies the at input into a dc signal. A dc voltage stage converts the dc signal to a desired dc voltage and an inverter inverts the dc signal into a second ac signal. An output transformer receives the second ac signal and provides a third ac signal that has a current magnitude suitable for welding, cutting or induction heating. The welding type current may be rectified, and smoothed by an output inductor and an output rectifier. A controller provides control signals to the inverter and a controller power supply can also receive a range of input voltages and provide a control power signal to the controller, and a voltage independent of the input voltage.08-05-2010
20080272099System and Method for Controlling Harmonics Injected onto an Input Line by a Welding-Type System - A system and method for operating an inverted-based power source includes a power input configured to receive alternating current (AC) power and a rectifier configured to convert the AC power to direct current (DC) power. The inverter-based power source also includes an inverter configured to receive the DC power from the rectifier and convert the DC power to AC power and a controller configured to generate switching signals according to a pattern of offsets from a regular half period and communicate the switching signals to the inverter or rectifier control operation of the inverter or rectifier.11-06-2008
20110062130WELDING GUN WITH REDUCED COMPONENTS - A welding gun is provided that includes a handle having forward and rear end portions and having a first passageway formed therethrough. A cable support tube having forward and rear end portions and a second passageway formed therethrough is secured to the handle at the forward end portion. A welding cable having a forward end portion and a rear end portion connected to a rear connector assembly extends from the rear end portion through the first and second passageways of the handle and the cable support tube to the forward end portion disposed within the forward end portion of the cable support tube.03-17-2011
20120199566WELDING APPARATUS WITH AUTOMATED WELDING WIRE RETRACTION - A method providing a welding apparatus configured to supply a welding wire to a welding gun and a welding system implementing the same is described. The welding gun has a trigger and an opening where the welding wire extends when the trigger is activated. The method also has a computer with a user interface that includes an automatic wire retract program, the program dynamically adjusting the amount of welding wire retraction based at least upon one of the following: welding arc current, welding wire size, and burnback time. The program monitors the welding gun and determines when the trigger is disabled. The program indicates when a first condition is satisfied and retracts the welding wire so the welding wire either does not extend (or minimally extends) from the opening of the welding gun.08-09-2012
20080203074SYSTEM AND METHOD FOR PROTECTING A WELDING-TYPE SYSTEM FROM STRAIN - A system and method for an integrated structural welding system is designed to protect the components of the system against accidental damage and undue stresses. Specifically, portable structure and a strain protection system are provided. The strain protection system is supported by a portable structure and engages one or both of a welding-type cable and a power cable to transfer forces applied to the welding-type cable or power cable when adjusting a position of the portable structure to the support structure.08-28-2008
20080203073WELDING-TYPE SYSTEM HAVING A WIRE FEEDER SYSTEM HAVING INTEGRATED POWER SOURCE CONTROLS AND A WELDING-TYPE POWER SOURCE THAT IS FREE POWER PARAMETER SELECTION INTERFACES - A system and method for an integrated structural welding system is designed to protect improve work flow efficiency. Specifically, a welding-type power source is provided that is free of user interface devices designed to select power parameters. Instead, a wire feeder is provided that includes a user interface configured to receive operational and power parameters and a controller configured to control operation of the welding-type power source based on the feedback received through the user interface.08-28-2008
20100320182SYSTEM AND METHODS FOR EFFICIENT PROVISION OF ARC WELDING POWER SOURCE - Methods and systems for creating and controlling an AC output for welding, plasma cutting or heating are provided. One embodiment of the present disclosure achieves a desired square wave AC output and reduces the number of circuit components needed by combining components of a buck converter and a full bridge inverter. Current flow paths through a power control circuit that are generated via switching of transistors in the circuit on and off are provided. In one embodiment, a pulse width modulation leg, which controls the level of current flow through an inductor, is provided. Certain embodiments include a bidirectional buck converter that converts an unregulated DC flow to a regulated DC flow through an inductor. In one embodiment, a steering leg is provided, which controls a direction of current flow through the inductor. Additionally, an output clamp circuit, which suppresses the parasitic load inductance during polarity reversal is provided.12-23-2010
20100320183WELDING POWER TO AUXILIARY POWER CONVERSION SYSTEM AND METHOD - Methods and systems for manufacturing and using the auxiliary power conversion unit, which is capable of being remotely located from a welding power supply unit during a welding operation, are provided. In some embodiments, the auxiliary power conversion is capable of outputting DC as well as AC power, capable of outputting multiple voltages consistent with the demands of typical auxiliary tools, such as a hand grinder or a light. In certain embodiments, the power conversion unit may be a stand-alone system or may be incorporated into a device, such as a wire feeder, which is configured to derive power from the arc potential. The power conversion unit may contain control and processing electronics that may include a controller, a processor, memory, and so forth.12-23-2010
20110114611MODULAR PROCESS LIST FOR WELDING POWER SUPPLY - A welding power supply includes a controller that automatically monitors the presence or absence of one or more modules connected to or installed into the welding power supply. The controller automatically turns on or off the power supply functions related to which optional modules are present. The controller populates various end-user interface menus based on which optional modules are installed. The controller uses software and/or hardware to make the determination. The optional module(s) themselves include circuitry which allows the controller to recognize when the optional module has been installed and what functions the installed optional module is capable of performing. The circuitry of the optional module(s) allows the optional module(s) to communicate with the controller. In this way, the end-user will not have the options of selecting a process on the user interface menus that is not available because the required equipment has not been installed.05-19-2011
20110168684WELD CURRENT GENERATING APPARATUS - A weld current generating apparatus includes a voltage conversion circuit, a control circuit, and a charge/discharge circuit. The voltage conversion circuit receives an AC voltage from an AC voltage input terminal and converts the AC voltage to a DC voltage. The control circuit receives the DC voltage and outputs control signals. The charge/discharge circuit receives the DC voltage and is charged by the DC voltage or discharged according to the control signals. The charge/discharge circuit outputs a continuous weld current during discharging process.07-14-2011
20110095009INTEGRATED WELD GUN HOLDER AND CABLE MANAGEMENT SYSTEM - A welder includes a housing enclosing one or more welding circuits communicated with power output studs for establishing a welding arc. A generally rigid bracket may be included that is affixed to an exterior of the housing, which may include first and second spaced apart support arms extending from a bracket, where the first support arm includes a first supporting surface facing a first direction, and where the second support arm includes a second supporting surface facing a second opposite direction for supporting the associated welding gun in a cantilevered configuration. A cable cradle is also included that extends from a second, distal end of the bracket.04-28-2011
20120145689MANUAL WELDING APPARATUS HAVING AN AUTOMATIC WIRE RETRACT METHOD - A method providing a manual welding apparatus configured to supply a welding wire to a welding gun. The welding gun has a trigger and an opening where the welding wire extends when the trigger is activated. The method also has a computer with a user interface that includes an automatic wire retract program. The program monitors the welding gun and determines when the trigger is disabled. The program indicates when a first condition is satisfied and retracts the welding wire so the welding wire does not extend from the opening of the welding gun.06-14-2012
20090120919METHOD OF WELDING TWO SIDES OF A JOINT SIMULTANEOUSLY - A system for arc welding two sides of a joint simultaneously is disclosed. By customizing welding waveforms and the distance between two or more electrodes, weld currents can be designed to transfer current to and through one or more electrodes in addition to the current traditionally passed only to the common node.05-14-2009
20120305535POWER SOURCE FOR ELECTRIC ARC WELDING - A power source for an electric arc welding process, wherein the power source comprises an input stage having an AC input and a first DC output signal; a second stage in the form of an unregulated DC to DC converter having an input connected to the first DC output signal and an output in the for of a second DC output signal electrically isolated from the first DC output signal end with a magnitude of a given ratio to the first DC output signal; and, a third stage to convert the second DC output signal to a welding output for the welding process.12-06-2012
20120152922HIGH FLOW POWER CABLE FOR SMALL WELDING TORCH - The invention provides a high flow power cable for a welding system designed for effective cooling of the power cable while maintaining maneuverability of the cable. Provided is a power cable having two segments, the first segment being larger in diameter than the second segment. The first segment is generally coupled to the power source and the second segment is coupled to the welding torch. The first segment includes a thicker wire, which has less resistance and dissipates less heat while the second segment includes a thinner wire, allowing for easier handling. Additionally, cooling fluid is conducted through the first segment and the second segment, further cooling the cable.06-21-2012
20120152920WIRE FEEDER WITH ELECTRODE POWER ROUTING - An apparatus is provided which is a wire feeder for a welding operation having two or more wire driving devices and a switching device which directs the welding current to the appropriate wire driving device for a welding operation.06-21-2012
20120012572METHOD OF RATING A STICK ELECTRODE - A system and 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 maintaining the arc; decreasing either the current or the voltage until a point is reached where the arc is extinguished; determining the open circuit voltage at the point; and, rating the electrode based upon at least the open circuit voltage point.01-19-2012
20100059492AUTOMATIC WELDING EQUIPMENT - A welding control unit has a common power section for detecting contact of a welding material and for welding. A material contact detector for detecting contact of the welding material and a workpiece, and a power controller are built in the welding control unit. This stabilizes a bead shape in starting welding. The number of components can also be reduced, resulting in more inexpensive equipment. In addition, only a space for installing the welding control unit is needed without any additional space.03-11-2010
20090032513Arc welding power source - An arc welding power source supplies a start current, a welding current and a crater current as an output current in accordance with an activating signal supplied from outside. The power source includes a start period setting unit, a crater period setting unit, and a current control unit that controls the output current. The current control unit causes the power source to supply the start current and the welding current consecutively while the activating signal is in an on-state, where the start current is supplied for the start period, and the welding current is supplied for the period following the start period. The current control unit also causes the power source to supply the crater current after the activating signal is turned off, where the crater current is supplied for the crater period.02-05-2009
20120152921DUAL WIRE WELDING SYSTEM AND METHOD - A system and method of welding is provided where at least two welding electrodes are provided to and passed through a single orifice on a single contact tip and a welding waveform is provided to the electrodes through the contact tip to weld simultaneously with both electrodes.06-21-2012
20100012635VISUALLY DESIGNATED USER INTERFACE FOR WELDER - Systems and methods for optimally setting a coarse adjustment knob and a fine adjustment knob (i.e. a rheostat) on a user interface of a stick welding system via an intuitive display are provided. Certain embodiments of the present disclosure relate to achieving the correct amperage setting for a given electrode through icons that allow easy association between an electrode and the proper coarse and fine adjustment knob settings. In one embodiment, the user interface includes a color coded bar chart that may be used to identify the proper coarse and fine adjustment knob settings for a given electrode. In another embodiment, the user interface includes panels above the coarse adjustment knob that contain icons with arrows that indicate an appropriate range of rheostat settings for a given electrode. Additionally, methods that may be used to set the coarse and fine adjustment knobs on the disclosed exemplary interfaces are provided.01-21-2010
20110266267OVERLAPPING METHOD OF A WELDING GROOVE, A TWIN WIRE WELDING METHOD AND A SYSTEM THEREOF - The invention provides an overlapping method of welding groove, a twin wire welding method and a system thereof. The twin wire welding method comprises the steps of: setting a tracking angle range of a tracking sensor according to a groove angle, wherein the tracking angle range comprises the groove angle which is an angle of a welding groove by overlapping an upper profile and a lower profile; setting a welding angle of a welding torch according to the groove angle, wherein the welding torch comprises a first welding wire and a second welding wire, the first welding wire is connected to voltage used for root penetrating, and the second welding wire is connected to voltage used for surface filling; controlling the welding torch not to open an arc, and verifying whether the welding angle is correct along the welding groove under the guidance of the tracking sensor; controlling the welding torch to open the arc and welding along the welding track of the welding groove according to the verified welding angle if so. The technical scheme of the invention overcomes the technical defects of inconvenient welding by the welding torch caused by the fact that the welding angle of the welding groove is appropriately a right angle or an acute angle in the prior art.11-03-2011
20120285938FLUX CORED ARC WELDING SYSTEM WITH HIGH DEPOSITION RATE AND WELD WITH ROBUST IMPACT TOUGHNESS - An arc welding system includes a wire feeding mechanism for delivering welding wire to a welding operation, and a welding power supply for generating a current for welding to the welding wire. The welding wire includes at least two distinct types of welding electrodes.11-15-2012
20130015169DIGITAL COMMUNICATION BASED ARC CONTROL WELDING SYSTEM AND METHOD - A welding system includes components equipped with digital communications circuitry for synchronization and coordination of tasks associated with the welding operation. The tasks may be initiated and terminated independently or in coordination based upon synchronization of this circuitry. Certain of the tasks may be performed by the components in an open-loop manner or in a closed-loop manner based upon feedback of welding parameters. Moreover, certain tasks may be independent of one another, or interdependent although carried out in parallel by the different system component.01-17-2013
20130020298HYBRID WELDING SYSTEMS AND DEVICES - A hybrid welding device including a fuel cell and an energy storage device that cooperate to power a welding operation and/or an auxiliary operation are provided. In some embodiments, the hybrid welding device may also include an engine coupled to a generator that is configured to supplement the power provided by the fuel cell and/or the energy storage device. The hybrid welding device may be adapted to provide power for a welding operation and/or an auxiliary operation when operated as a standalone unit and/or when connected to a primary source of utility power.01-24-2013
20130020300HYBRID WELDING SYSTEMS AND DEVICES - A hybrid welding device including a fuel cell and an energy storage device that cooperate to power a welding operation and/or an auxiliary operation are provided. In some embodiments, the hybrid welding device may also include an engine coupled to a generator that is configured to supplement the power provided by the fuel cell and/or the energy storage device. The hybrid welding device may be adapted to provide power for a welding operation and/or an auxiliary operation when operated as a standalone unit and/or when connected to a primary source of utility power.01-24-2013
20130020299HYBRID WELDING SYSTEMS AND DEVICES - A hybrid welding device including a fuel cell and an energy storage device that cooperate to power a welding operation and/or an auxiliary operation are provided. In some embodiments, the hybrid welding device may also include an engine coupled to a generator that is configured to supplement the power provided by the fuel cell and/or the energy storage device. The hybrid welding device may be adapted to provide power for a welding operation and/or an auxiliary operation when operated as a standalone unit and/or when connected to a primary source of utility power.01-24-2013
20120241428SYSTEMS AND METHODS FOR ADJUSTING MULTIPLE SETTINGS OF A WELDING POWER SUPPLY - A method for adjusting multiple settings of a welding power supply is provided. The method includes providing a plurality of selectable identifiers. Each selectable identifier corresponds to a plurality of user adjustable welding power supply settings. The method also includes receiving an indication to select one of the plurality of selectable identifiers. The method includes adjusting the plurality of user adjustable welding power supply settings that correspond to the received indication.09-27-2012
20130168374METHOD AND DEVICE FOR CONTROLLING CURRENT FLOW THROUGH A WELDING CLAMP - A method and device for controlling current flow through a welding clamp are provided. One welding clamp includes a first contact piece configured to contact a workpiece and to provide a first current path that limits current flow. The welding clamp also includes a second contact piece configured to contact the workpiece and to provide a second current path. When the welding clamp is being clamped to the workpiece, the first contact piece is configured to contact the workpiece prior to the second contact piece. In addition, the welding clamp is configured so that current flows through the first current path prior to flowing through the second current path when the welding clamp is being clamped to the workpiece.07-04-2013
20130112673USE OF MOBILE COMMUNICATIONS DEVICES AS USER INTERFACE FOR WELDING EQUIPMENT AND SYSTEMS - A welding or cutting system having a power supply with no user interface hardware or software for controlling the operation of the power supply, and a mobile communication device which contains an application allowing for control of the power supply. The mobile device is coupled to the power supply through either a wired or wireless connection.05-09-2013
20080210676Portable welder - A portable welder including a housing having a handle, a power supply contained within the housing, and welding wire stored within the housing that receives welding current from the power supply. An end portion of the welding wire extends from an opening in the housing so that the end portion of the welding wire can be placed in contact with a workpiece.09-04-2008
20100314371SYSTEMS AND METHODS FOR DIAGNOSING SECONDARY WELD ERRORS - A controller for a welding system adapted to determine a value of a weld secondary parameter across a weld secondary component based on a sensed parameter is provided. The controller may also be adapted to compare the determined value to a reference value range and to alert a user to a presence and location of a weld secondary error when the determined value is outside the referenced value range.12-16-2010
20100314370SYSTEMS AND METHODS FOR WIRE FEED SPEED CONTROL - A welding system including a fine tuning knob and a coarse adjustment knob for setting a weld wire feed speed are provided. The welding system may include a welder having the coarse adjustment knob and a spool gun having the fine tuning knob. A user may adjust the knob on the welder to set a coarse adjustment wire feed speed and may adjust the knob on the spool gun to fine tune the wire feed speed setting.12-16-2010
20100314369WELDING SYSTEMS AND METHODS FOR CONTROLLING A WIRE FEEDER VIA A SPOOL GUN CONNECTION - A welding system including a welding power supply coupled to a wire feeder via a spool gun connection is provided. The welding system is adapted to utilize the power and control capabilities originating from the spool gun connection for wire feeder operations during an initial period. The wire feeder is adapted to utilize the welding arc power and an internal controller to power and control wire feeder operations after the initial period.12-16-2010
20130119035Welding Assembly and Method - A welding assembly including a current generator, an electrode electrically coupled to the current generator, the electrode including a first engagement surface, and a workpiece including at least two members, wherein at least one of the members includes a second engagement surface, defines a recess in the second engagement surface, and is electrically coupled to the current generator.05-16-2013
20110309062MODIFIED SERIES ARC WELDING AND IMPROVED CONTROL OF ONE SIDED SERIES ARC WELDING - An electric arc welding system for depositing weld metal along a groove between two edges of a metal workpiece where the system contains a first power supply and a second power supply, each providing a welding waveform to respective welding electrodes. The positive output terminals of both power supplies are coupled to the same contact tip and the negative output terminal of one of the power supplies is not coupled to the workpiece.12-22-2011
20110309061WELDING WIRE RETRACTION SYSTEM AND METHOD - A method and system for retracting welding wire is provided. One welding torch includes a handle configured to receive welding wire from a wire source and to direct the welding wire to a torch tip. The welding torch also includes a first switch coupled to the handle and configured to cause the welding wire to extend out of the torch tip to expose more wire when the first switch is actuated. The welding torch includes a second switch coupled to the handle and configured to cause the welding wire to retract into the torch tip to expose less wire when the second switch is actuated.12-22-2011
20130200054TANDEM BURIED ARC WELDING - A system and method is provided in which at least two welding power supplies are coupled to respective weld torches where the power supplies each provide a pulse welding waveform to their respective weld torches such that the welding pulses are out of phase with each other such that the respective welding pulses do not overlap during welding. The system also includes a ground current switch which switches the ground current path during welding to minimize arc interference and arc blow.08-08-2013

Patent applications in class Including arc-power supplies

Patent applications in all subclasses Including arc-power supplies