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| Number | Title | Issue Date |
| 7576300 | Welding gun having contact tip and method of operating same A welding gun adapted to secure a contact tip within the welding gun without threading the contact tip and without the use of tools. The contact tip may be adapted to abut a surface of a first member disposed within the welding gun. The surface may be a surface of a... | 08/18/2009 |
| 7557327 | Method of pulse welding and contact tip therefor A contact tip for a welding gun having a central passage for a welding wire moving in a given direction toward a workpiece and receiving a welding signal by contact of the wire with the tip. The passage has an innermost end, an outermost exit end and a length of at ... | 07/07/2009 |
| 7381923 | Consumable electrode arc welding A contact tip suitable for electric arc welding has a consumable electrode. The contact tip has a body which defines a bore through which the electrode is able to pass to enable electric current from a welding power supply to be transferred from the body to the elec... | 06/03/2008 |
| 7271366 | Welding gun contact tip A contact tip for a welding gun includes an elongate body having a first end, a second end, and a first opening extending longitudinally between the first end and the second end. The elongate body has an outer surface and an inner surface. The elongate body has a se... | 09/18/2007 |
| 7262386 | Method of pulse welding and contact tip therefor A contact tip for a welding gun having a central passage for a welding wire moving in a given direction toward a workpiece and receiving a welding signal by contact of the wire with the tip. The passage has an innermost end, an outermost exit end and a length of at ... | 08/28/2007 |
| 7230203 | Protective cap for a contact pipe in a welding torch in addition to a welding torch equipped with said cap The invention relates to a protective cap for at least one contact pipe of a welding torch, the pipe or pipes having a respective bore for guiding and contacting a respective welding rod that is fed through the pipe or pipes. The cap comprises a housing consisting o... | 06/12/2007 |
| 7208699 | Spool gun having unitary shielding gas and weld power connector A spool gun having a quick connector connectable to an electrical power source and a gas source is disclosed. A connection line extends from the spool gun and is attached to a connector. The connector both fluidly connects the spool gun to a shielding gas source and... | 04/24/2007 |
| 7196284 | Welding gun having rotational swivel coupling A welding gun having a swivel coupling joining the posterior end of the gun to the handle thereby allowing the handle and gooseneck to be rotated without having to rotate the posterior end of the gun and the wire cable feed line, the swivel coupling providing a cond... | 03/27/2007 |
| 7191968 | System for handling welding wire and method of handling welding wire using the system A coiled supply of welding wire in combination with a container. The container has a main body defining an upwardly opening receptacle with bottom wall and a radially inwardly facing surface on a peripheral wall extending upwardly from the bottom wall. The container... | 03/20/2007 |
| 7176412 | Taper locking features between components of a welding device Locking engagement connections between various components of a welding device can include tapered features having varied thread patterns and/or varied angles to ensure that the components remain tight during service. For example, locking engagement connections can b... | 02/13/2007 |
| 7119303 | Welding current nozzle material The invention relates to a welding current nozzle material used in the welding current nozzle for feeding filler material in MIG-type welding. The material used in the welding current nozzle according to the invention is a copper-based alloy where silver is alloyed.... | 10/10/2006 |
| 7105775 | Welding gun having contact tip and method of operating same A welding gun adapted to secure a contact tip within the welding gun without threading the contact tip and without the use of tools. The contact tip may be adapted to abut a surface of a first member disposed within the welding gun. The surface may be a surface of a... | 09/12/2006 |
| 7094990 | Contact nozzle for electric arc welding Contact nozzle 1 for electric arc welding with continuous welding wire 30 flowed through by welding current, which nozzle 1 can be connected to a welding torch and comprises an electrically conductive contact tube 10 with a longitudinal t... | 08/22/2006 |
| 7067768 | Motor driven resistance spot welding gun A motor-driven welding gun has a servomotor for displacing a movable electrode tip toward and away from a fixed electrode tip. The servomotor has a motor housing with a copper pipe which is inserted therein when the motor housing is cast. The copper pipe provides a ... | 06/27/2006 |
| 7022934 | Connecting adapter for weld electrode An electrically and thermally conductive adapter for connecting a weld electrode to a tip holder portion of a welding device. The adapter has a first, threaded end, for removable engagement with a like-threaded receiving cavity in the tip holder. The threads may be ... | 04/04/2006 |
| 6943318 | Welding tip for arc welding and arc welding apparatus A contact provided in a welding tip of an arc welding apparatus includes a tip body adapted to be mounted to a welding torch body and a tip end member formed integrally therewith. The tip end member is divided into two parts, i.e., first and second halves by means o... | 09/13/2005 |
| 6924461 | Gas diffuser for head tube assembly of welding gun A gas diffuser for a welding gun in which atmospheric air in the interior of the liner is substantially prevented from entering the contact tip hole. The gas diffuser includes a cradle having a hole and a section of a concave surface disposed around a periphery of t... | 08/02/2005 |
| 6888092 | Electrodes and nozzles having improved connection and quick release Electrode and nozzle that seat within a retaining member and in two different seating locations relative to retaining member. The electrode and nozzle each include an interwoven-double-start thread having two thread cuts, which start 180 degrees from one another as ... | 05/03/2005 |
| 6847009 | Welding contact tip and diffuser A welding contact tip and diffuser assembly for use in a welding apparatus. The assembly includes an electrically conductive contact tip having a tapered exterior surface, a diffuser having a cavity with a tapered interior surface, and a releasable connection for ho... | 01/25/2005 |
| 6825432 | Apparatus and method for forming a body A method of forming a body by deposition of a weld material comprises providing a welding head (12), providing a foundation (52) upon which the body is to be formed. A weld material is supplied from a supply (22). The welding head (12) an... | 11/30/2004 |
| 6759623 | Radial tube torch head A torch head having a base section, a tip section and three or more radial rods connected between the base section and the tip section. The radial rods form a generally circular inner chamber which inner chamber includes an electrode. One or more of the radial rods ... | 07/06/2004 |
| 6744013 | Welding torch for use in gas metal arc welding A welding torch (2) for use in gas metal arc welding, including a neck portion (4), a diffuser (6) at a first end (8) of the neck portion (4), a contact tip (10) which extends from the diffuser (6), and connector mean... | 06/01/2004 |
| 6710300 | Contact tip assembly for mig gun A current path for a mig welding gun assures a reliable and stable interface between a welding gun and a weld wire. In one embodiment, the current path is through a conductive insert that fits in the welding gun diffuser. Fingers of the insert resiliently contact th... | 03/23/2004 |
| 6689988 | Welding gun having a plated tip and method for making same An arc welding system using a wire to produce an arc. The arc welding system comprising a welding handle. A tip being disposed in the welding handle to direct wire through the welding handle. The tip having a passage through the tip to receive the wire. T... | 02/10/2004 |
| 6689987 | Welding contact tip with rolled threads A MIG welding gun contact tip has a cylindrical section with a predetermined outer diameter adjacent one end, and frusto-conical surface adjacent the other end. Threads are rolled from the cylindrical section outer diameter between the cylindrical section... | 02/10/2004 |
| 6657162 | Burner head of an electric arc welding or cutting burner with contact nozzle supported in positive fit The invention relates to a burner head (9) of an electric arc welding or cutting head, with preferably a melting wire electrode, having a contact nozzle (1) and a spring chuck (2) for releasably holding the contact nozzle (1) on the burner head (9). Both ... | 12/02/2003 |
| 6627834 | Wire electrical discharge apparatus The shape of each electrical supply die for contact-supplying electricity to a wire electrode is changed to a cylindrical shape, and grooves are provided in its outer surface in parallel to the traveling direction of the wire, wherein upper electric suppl... | 09/30/2003 |
| 6559416 | Alternate current path for mig gun A current path for a mig welding gun assures a reliable and stable interface between a welding gun and a weld wire. In one embodiment, the current path is through a conductive insert that fits in the welding gun diffuser. Fingers of the insert resiliently... | 05/06/2003 |
| 6525297 | Mig gun nozzle with reduced cross-sectional area at the front A MIG welding gun has a diffuser with an external thread and a frusto-conical back ramp. A nozzle assembly includes an insert with a back ramp and a thread that mates with the diffuser thread. The threads of the diffuser and insert have respective ramps t... | 02/25/2003 |
| 6495798 | Radial tube torch head A torch head having a base section, a tip section and three or more radial rods connected between the base section and the tip section. The radial rods form a generally circular inner chamber which inner chamber includes an electrode. One or more of the r... | 12/17/2002 |
| 6429406 | Contact tip The invention relates to a contact tip for a welding or cutting torch which includes at least one internal opening for guiding and engaging at least one welding electrode, wherein the internal opening is produced by deep drilling in a bar-shaped semi-fini... | 08/06/2002 |
| 6307179 | Wire welding gun having improved connection between a contact tip and its mating part A welding gun contact tip which seats within a retaining member and in two different seating locations relative to the contact member. The contact tip includes an interwoven-double-start thread having two thread cuts which start 180 degrees from one anoth... | 10/23/2001 |
| 6259059 | Arc welder and torch for same In an electric arc welder for creating an arc welding process between a consumable electrode advancing through a contact tip and a workpiece, the welder including a power supply to create an arc current and arc voltage and having a first lead connected to... | 07/10/2001 |
| 6225599 | Mig gun with axially aligned offset motor A mig welding gun handle is in two sections that are offset from each other by an angle of approximately 20 degrees. The offset handle makes the gun exceptionally comfortable for an operator to maneuver when welding various workpieces. A non-right angle g... | 05/01/2001 |
| 6093907 | Contact tip for welding Welding contact tip having a wire passage for a welding wire in a center thereof, comprising a tip body and a tip end which are detachable from each other by screw-in type or taper force-in type structure, the tip body being composed of brass, aluminum, c... | 07/25/2000 |
| 6075227 | Taper lock contact tip and head assembly for welding device A contact tip for use with a welding gun includes a tapered portion, a threaded portion, an extension portion and a gripping feature. The tip is elongated and has a first end and a second end. The tip also has a wire feed axis extending therethrough and a... | 06/13/2000 |
| 5911894 | Enhanced contact area quick release MIG gun tip A quick release mig gun tip comprises a contact tip having an exterior frusto-conical surface and external threads, and a gas diffuser having an internal frusto-conical surface and internal threads. The threads are preferably stub acme threads. The contac... | 06/15/1999 |
| 5900167 | Narrow prep MIG welding MIG welding apparatus includes a torch body; a machine barrel extending forwardly of the torch body; a contact tip extending forwardly from the machine barrel; and a pair of gas supply tubes extending along and substantially parallel to the contact tip, e... | 05/04/1999 |
| 5760373 | Enhanced contact area quick release mig gun tip A quick release mig gun tip comprises a contact tip having an exterior frusto-conical surface and external threads, and a gas diffuser having an internal frusto-conical surface and internal threads. The threads are preferably stub acme threads. The contac... | 06/02/1998 |
| 5726420 | Taper lock contact tip and head assembly for welding device A contact tip for use with a welding gun includes a tapered portion, a threaded portion, an extension portion and a gripping feature. The tip is elongated and has a first end and a second end. The tip also has a wire feed axis extending therethrough and a... | 03/10/1998 |
