Class / Patent application number | Description | Number of patent applications / Date published |
219130400 | With arc ignition and stabilization arrangements | 12 |
20090084768 | PLASMA 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 |
20120298641 | METHOD 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 |
20140083989 | SYSTEMS AND METHODS PROVIDING LOW CURRENT REGULATION FOR AC ARC WELDING PROCESSES - Systems and methods providing low current regulation for AC arc welding processes to regulate arc welding performance. In arc welding power source embodiments, configurations of bridge and arc regulation circuits allow for the directional switching of the welding output current through the welding output circuit path and induce a voltage between the electrode and the workpiece of the welding output circuit path that is sufficient to re-ignite the arc during polarity transition of the output current. The arc regulation circuit provides a high inductance level for storing energy, in both polarities, which induces the voltage level for re-igniting the arc during the zero crossing of the output current and provides low end stabilization of arc current. | 03-27-2014 |
20140203005 | Welder powered arc starter - An electric welding arc starter powered by a switching regulator, which draws its input current from the weld cables. Optionally, the regulator temporarily reduces its input current after the arc igniter fires. Optionally, the regulator temporarily increases its input current before the arc igniter fires. | 07-24-2014 |
20140203006 | SYSTEMS AND METHODS PROVIDING LOW CURRENT REGULATION FOR AC ARC WELDING PROCESSES - Systems and methods providing low current regulation for AC arc welding processes to regulate arc welding performance. In arc welding power source embodiments, configurations of bridge and arc regulation circuits allow for the directional switching of the welding output current through the welding output circuit path and induce a voltage between the electrode and the workpiece of the welding output circuit path that is sufficient to re-ignite the arc during polarity transition of the output current. The arc regulation circuit provides a high inductance level for storing energy, in both polarities, which induces the voltage level for re-igniting the arc during the zero crossing of the output current and provides low end stabilization of arc current. | 07-24-2014 |
20140251966 | INDUCTIVE DISCHARGE ARC RE-IGNITION AND STABILIZING CIRCUIT - A system and method for re-igniting and stabilizing an arc is provided. The system includes an output system that provides an output waveform, which includes a positive period and a negative period. The positive period includes a positive decay period prior to a transition to the negative period, and the negative period includes a negative decay period prior to a transition to said positive period. The system further includes an inductive discharge and stabilizing system, which includes at least one inductor. The at least one inductor re-ignites an arc between an electrode and a workpiece during the transition period from the positive period to the negative period and the transition period from the negative period to the positive period. The at least one inductor also provides a stabilizing current to stabilize said arc during at least a portion of said positive period and at least a portion of said negative period. | 09-11-2014 |
20150083699 | WELDING DEVICE HAVING TWO WELDING TORCHES AND CONTROL UNIT FOR STARTING THE ARC IGNITION PROCESS, AND WELDING METHOD FOR WELDING WITH TWO WELDING PROCESSES UNDER AN ADAPTED STARTING PROCESS - A welding device has a central unit and a welding torch unit, which can be connected to the central unit. The central unit includes at least one welding current source for providing electric current needed to operate the welding torch unit and includes a control unit. The welding torch unit includes at least a first welding torch with a first welding wire and a second welding torch with a second welding wire. The control unit is configured to carry out a starting process in such a way that firstly a first arc ignition takes place at one of the two welding torches and after a waiting time since the first arc ignition has passed, a second arc ignition takes place at the other of the two welding torches, which until then was not ignited. | 03-26-2015 |
20150306691 | TIG WELDING SYSTEM - A TIG welding system is provided including a power source having a controller in communication therewith, the controller having a memory storing at least one waveform and associated with a welding electrode composition (color) in combination with a welding electrode diameter (detected or input). | 10-29-2015 |
20160121418 | Welder Powered Arc Starter - An electric welding arc starter containing a Tesla coil powered by a switching regulator, which draws its input current from the weld cables. Optionally, the regulator reduces its input current after the Tesla coil fires. Optionally, the regulator temporarily increases its input current before the Tesla coil fires. | 05-05-2016 |
20160129514 | Welding Type Power Supply For TIG Starts - A method and apparatus for TIG welding and starting a TIG welding process includes limiting the pulse width of a power circuit when a TIG start is being performed, and monitoring for the creation of a welding arc. After the welding arc has been detected the limiting of the pulse width is ended. | 05-12-2016 |
20160175961 | ELECTRIC ARC START SYSTEMS AND METHODS | 06-23-2016 |
20220134461 | APPARATUS FOR WELDING - A irradiation welding apparatus including an irradiation welding generator having at least one irradiation welding head configured to apply an irradiation treatment to end contact surfaces of a first profile and a second profile to join the first profile and the second profile, where the at least one irradiation welding head forms a planar cross-sectional shape in an x-y directional plane relative to the irradiation welding generator. | 05-05-2022 |