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| Number | Title | Issue Date |
| 8153932 | Method and device for controlling a power source and power source having such a device A method and device for controlling a power source of a welding, cutting or plasma coating system is provided. The power source comprises a measuring part and a controllable clocked power part. A value correlating with a characteristic variable of the power part to ... | 04/10/2012 |
| 8124913 | Method for controlling and/or adjusting a welding process and welding device for carrying out a welding process A method for controlling and/or adjusting a welding process, uses a melting electrode, wherein after ignition of an electric arc, a welding process, which is adjusted on the basis of several different welding parameters, is carried out using a welding current source... | 02/28/2012 |
| 8067714 | Squeezing detection control method for consumable electrode arc welding A squeezing detection control method is provided for consumable electrode arc welding. The method includes a step of detecting a droplet squeezing phenomenon by checking that a change in a voltage or resistance between the consumable electrode and base material reac... | 11/29/2011 |
| 8035059 | Method for controlling and/or adjusting a welding process The invention relates to a method for controlling and/or adjusting a welding process, using a melting welding wire (13) wherein after ignition of an electric arc, a welding process is carried out, the welding process being adjusted on the basis of several dif... | 10/11/2011 |
| 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 state occurring between the consumable electrode and a base material. In ... | 04/05/2011 |
| 7800016 | Polarity switching short circuiting arc welding method A method of performing polarity switching short circuiting arc welding is provided. In the arc welding, a welding wire is fed at a constant feeding rate, a short circuiting state and a arcing state appear repeatedly between the welding wire and a base metal, and the... | 09/21/2010 |
| 7714252 | System and method for a temperature dependent duty cycle within a welding-type apparatus A duty cycle controller having a processor configured to control a welding-type apparatus is disclosed. In one embodiment, the processor may be configured to control the welding-type apparatus according to a variable maximum duty cycle to substantially delay entry i... | 05/11/2010 |
| 7705269 | Method and apparatus for advance warning and controlled shutdown in an arc processing system Warning and shutdown systems and methods are presented for providing advance warnings of pending fault conditions to an operator of an arc processing system. The warning system comprises an input, a logic system, and a signaling system, where the input receives a se... | 04/27/2010 |
| 7645960 | Coded welding consumable A welder for performing a welding process which includes a wire feeder and a code reader. The code reader is designed to obtain information from the welding wire based on a plurality of different cross-sectional sizes and/or different cross-sectional shapes on the o... | 01/12/2010 |
| 7598474 | Method and apparatus for short arc welding A short circuit arc welding system is disclosed. The control scheme uses a current command signal comprised of a long-term current command that sets the long-term current command level and a real-time or short-by-short current command to drive the output current. Fe... | 10/06/2009 |
| 7576299 | Generator for arc welder with high power factor A generator for arc welder, of the type composed of a rectifier stage followed by a PFC stage and by an inverter stage, both of the high-frequency type, the latter stage supplying power to a final rectifier stage for a welding arc, the PFC stage being composed of tw... | 08/18/2009 |
| 7518088 | Controller for arc welding robot In a conventional arc welding robot control unit, since an emergency stop circuit for a robot and an emergency stop circuit for a welding machine exist independently of each other, not only the circuit configuration thereof is long but also the emergency stop enforc... | 04/14/2009 |
| 7372711 | Circuit and method for reducing voltage spikes due to magnetizing current imbalances and power converter employing the same For use in a power converter having parallel power trains, a circuit for, and method of, reducing voltage spikes due to magnetizing current imbalances in the power trains and a power converter incorporating the circuit or the method. In one embodiment, the circuit i... | 05/13/2008 |
| 7355866 | Method of detecting phase-loss state of three-phase power supply The disclosure relates to a method of detecting the phase-loss state of the three-phase power supply. When the phase-loss condition occurs in the input three-phase power supply of the power converter, it is determined whether the three-phase power source is in the p... | 04/08/2008 |
| 7351932 | Method and apparatus for welding with voltage control A method and apparatus for providing welding-type power includes an input circuit, a switched circuit connected to the input circuit, and an output circuit connected to the switched circuit. A controller controls the system output in response to a setpoint and an ou... | 04/01/2008 |
| 7351931 | Switching power supply apparatus and electronic device using the same Provided is a switching power supply unit which uses a multilayer board or a stack of planar conductors as the windings of transformers so as to reduce the volume of the transformers and to have high efficiency, small size and small noise. The switching power supply... | 04/01/2008 |
| 7342768 | Active balancing modular circuits Provided are active balancing modules that control voltage imbalances between capacitors stacked in a series arrangement and methods for their manufacture. These modules are simple and inexpensive to manufacture, and versatile. They may be used alone or they may be ... | 03/11/2008 |
| 7336466 | Contactor material for welding wire feeder An electromechanical contactor device is disclosed for use in a wire feeder for an electric arc welder having a power source and a gun with a contact tip through which welding wire is fed and a weld cycle start trigger switch having a closed condition to initiate an... | 02/26/2008 |
| 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 that rectifies the ac input into a dc signal. A dc voltage stage conve... | 01/15/2008 |
| 7307240 | Welding-type power supply with a state-based controller A method and apparatus for providing welding-type power includes a source of welding-type power and a controller. The controller is a state-based controller, and/or a deterministic control module, connected to the controller output. The state-based control module in... | 12/11/2007 |
| 7304269 | Pulse welder and method of using same An electric arc welder for performing a pulse welding process by a current between an advancing electrode and workpiece where the welder comprises a short detecting circuit for creating a short signal upon occurrence of a short circuit between the advancing electrod... | 12/04/2007 |
| 7297899 | Operating parameter dependent variable output welding-type apparatus The present invention is directed to a welding-type power source controller that includes a processor configured to control a welding-type power source to produce a variable maximum output that can exceed a rated maximum output based on actual operating conditions, ... | 11/20/2007 |
| 7291807 | TIG welding equipment and TIG welding method TIG welding equipment includes a first articulate robot having a first arm, a TIG torch holding member for holding a TIG torch at a specified position so that the TIG torch can perform a weaving operation, and a filler wire guide moving member formed so as to surrou... | 11/06/2007 |
| 7289862 | Methods to support process quality and maintenance during control of an industrial process such as welding A number of methods to support process quality and maintenance during control of an industrial process such as welding are provided. The methods provide, among other things: automatic process limit programming based on runtime data; user-initiated process limit prog... | 10/30/2007 |
| 7289329 | Integration of planar transformer and/or planar inductor with power switches in power converter A power converter integrates at least one planar transformer comprising a multi-layer transformer substrate and/or at least one planar inductor comprising a multi-layer inductor substrate with a number of power semiconductor switches physically and thermally coupled... | 10/30/2007 |
| 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 circuit with current greater than 250 amperes and a secondary circuit wit... | 09/25/2007 |
| 7266462 | System, method and computer program product for configuring power supply apparatus A system, method and computer program for configuring power supply apparatus to supply a voltage optimized to tolerate a range about a nominal operating voltage of a device comprises a tester to test and communicate to a comparator a present utility voltage value. T... | 09/04/2007 |
| 7265320 | Method and system for reducing spatter in short-circuit transfer gas shielded arc welding A method for reducing spatter in the short-circuit transfer gas shielded arc welding is disclosed. In this method, the resistance changing rate or the impedance changing rate of the welding circuit loop is detected for estimating the diameter of the short-circuit li... | 09/04/2007 |
| 7238917 | Device to control power source A device to control operation of a power source for an electric arc welder comprising an oscillator for inducing a high frequency voltage into a series circuit including the welding gap, a detector tuned to the high frequency for sensing the level of current in the ... | 07/03/2007 |
| 7233534 | Electronic circuit package An electronic apparatus which includes a wiring substrate which includes wiring conductors, and a plurality of semiconductor bare chips that are formed on the wiring substrate. The semiconductor bare chips include a processor for processing data and a circuit having... | 06/19/2007 |
| 7226510 | Film forming apparatus In a film forming apparatus according to the aerosol deposition method, the thickness of a structure being formed can be controlled accurately. The film forming apparatus includes an aerosol generating part in which raw material powder is to be provided, a compresse... | 06/05/2007 |
| 7216793 | Friction stir welding travel axis load control method and apparatus A friction stir welding (FSW) travel axis load control method and apparatus for controlling a travel axis load applied to a FSW setup during the joining of workpieces by FSW. The method and apparatus recognize that controlling certain attributes of a friction stir w... | 05/15/2007 |
| 7208697 | System and method for monitoring and controlling energy usage A welding control system to monitor the energy consumption of a plurality of welders. The welding control system controls the operation of one or more welders based upon the energy information received from one or more energy monitoring devices. ... | 04/24/2007 |
| 7205503 | Remotely controlled welding machine The present invention is directed to a remotely controlled welding machine. A remote control uses the welding circuit to transfer information to a welding power source. The information to be communicated to the power source includes welding power source output comma... | 04/17/2007 |
| 7186296 | Film formation apparatus A film formation apparatus by which a film thickness can be precisely measured and whether the film quality is good or bad can be confirmed in a process of performing film formation according to the aerosol deposition method. The film formation apparatus includes: a... | 03/06/2007 |
| 7187529 | Apparatus and method for detecting a gas associated with a glowing contact and interrupting a power circuit A receptacle interrupts a power circuit including a glowing contact and a gas, such as hydrogen chloride, carbon dioxide, carbon monoxide or a combination of those gases, associated with the glowing contact. The receptacle includes a set of separable contacts for in... | 03/06/2007 |
| 7173214 | Electric arc pulse welder with short circuit control An electric arc welder with a waveform generator controlled to create a welding process involving current flow between an electrode and a workpiece wherein the welding process comprises a succession of pulse waveforms, each having a current ramp up portion, a peak c... | 02/06/2007 |
| 7170031 | Earth connections for workpieces The invention relates to earth connections to workpieces particularly a workpiece to which an arc is to be struck, and more particularly to a workpiece that is underwater. It is of considerable importance that a workpiece is properly connected to earth, and that the... | 01/30/2007 |
| 7166817 | Electric ARC welder system with waveform profile control for cored electrodes An electric arc welder for creating a welding process in the form of a succession of AC waveforms between a particular type of cored electrode, with a sheath and core, and a workpiece by a power source comprising an high frequency switching device for creating the i... | 01/23/2007 |
| 7154064 | Method of improving weld quality A method of improving weld quality between aluminum members by slowing the rate of solidification of a molten weld trough into solidified material. Upper and lower aluminum members are positioned together in contact between facing surfaces thereof to expose a first ... | 12/26/2006 |
