Assignee: The Esab Group, Inc.

Location: Florence, SC
No. of patents: 20

Number	Title	Issue Date
7605341	Metering system and method for supplying gas to a torch A metering system and associated method for supplying gas to a torch are provided. The metering system includes a controller that is configured to adjust a pressure regulator according to the pressure and flow rate of the gas delivered to the torch. For example, the...	10/20/2009
7470872	Cooling device and system for a plasma arc torch and associated method A plasma arc generation system includes a power module operably engaged with a plasma arc torch head portion and adapted to provide an electrical current for causing an arc at the torch head portion or generating a plasma. A cooling device is operably engaged with t...	12/30/2008
7435925	Plasma arc torch A plasma torch is provided having a movable member carrying an electrode and movable along a tubular member bore having a nozzle at one end. A piston member engaged with the movable member moves the electrode between inoperable and operable positions within the bore...	10/14/2008
7431776	Slag-removal system and method in a cutting table A slag-removal system for a cutting table includes a pair of drive members arranged in spaced endless loops extending parallel to a longitudinal direction, with a slag plow connected between the drive members, each loop having a lower run and an upper run spaced abo...	10/07/2008
7423235	Electrode and electrode holder with threaded connection A threaded connection for an electrode holder and an electrode in a plasma arc torch is provided. The threaded connection has relatively low height, and the engaged portion of a male threaded portion of the electrode and a female threaded portion of the electrode ho...	09/09/2008
7256366	Plasma arc torch, and methods of assembling and disassembling a plasma arc torch A plasma arc torch and methods for assembling and disassembling a plasma arc torch wherein a plurality of front end parts of the torch form a unit that is removable from the torch in a single operation to gain access to the electrode. The unit can then be reinstalle...	08/14/2007
7179036	Fastening arrangement employing thread-forming screw A fastening arrangement comprising a thread-forming lobular screw and a member defining a non-tapped pilot hole therein. The screw has a shaft and a head joined to a proximal end of the shaft, the shaft defining a plurality N of lobes circumferentially spaced about ...	02/20/2007
7081597	Electrode and electrode holder with threaded connection A threaded connection for an electrode holder and an electrode in a plasma arc torch is provided. The threaded connection has relatively low height, and the engaged portion of a male threaded portion of the electrode and a female threaded portion of the electrode ho...	07/25/2006
6726471	Flashback arrestor for use with head of Oxy-fuel torch Flashback protection is provided in or proximate the head of a cutting torch by a fitting, which can be in the form of an adapter or a cutting tip for mounting to the head. The fitting includes a body and porous structure that is preferably carried by the body and i...	04/27/2004
6440229	Lower pre-heat block for use in metal scarfing apparatus A lower pre-heat block assembly (9) for use with a metal scarfing apparatus (5) is disclosed. The lower pre-heat block assembly has a lower block (38) and an extension (39) engaged upon and in overlying relationship with a front face (46) of the lower blo...	08/27/2002
6222155	Cutting apparatus with thermal and nonthermal cutters, and associated methods A table has a pervious support surface and a gantry is mounted for movement across the support surface in a longitudinal direction. A carriage is mounted to the gantry for movement across the support surface in a transverse direction. Water jet and plasma...	04/24/2001
6174491	Lower pre-heat block for use in metal scarfing apparatus A lower pre-heat block assembly (9) for use with a metal scarfing apparatus (5) is disclosed. The lower pre-heat block assembly has a lower block (38) and an extension (39) engaged upon and in overlying relationship with a front face (46) of the lower blo...	01/16/2001
6170687	Apparatus packaging enclosure An apparatus packaging enclosure includes end members (preferably injection molded plastic) of desired configuration to define a cross-sectional shape including a desired height and width to the packaging enclosure. Spaced-apart elongate fastener members ...	01/09/2001
6081423	Power supply with obliquely impinging airflow A power supply includes a housing and an air moving device for moving cooling air along a flowpath extending through the housing. A heat sink extends in a longitudinal direction and is positioned within the flowpath so that an upstream section of the flow...	06/27/2000
6066827	Electrode with emissive element having conductive portions The invention relates to an emissive element for supporting an electric arc in a plasma arc torch using an oxygen gas to create the plasma. The element includes a body having a front face for supporting the electric arc which is defined by at least two di...	05/23/2000
6062258	Gas pressure regulator having burn-out protection system A gas pressure reducing regulator which includes a flexible diaphragm which is biased by a spring so as to control the opening of the valve of the regulator and thus the delivery pressure of the gas being regulated. The regulator includes a system for eff...	05/16/2000
6020572	Electrode for plasma arc torch and method of making same An electrode for a plasma arc torch comprises a copper holder having a lower end which mounts an emissive element serving as the cathode terminal for the arc during operation. A relatively non-emissive separator formed of silver alloyed with 0.5 to 4 perc...	02/01/2000
5951888	Plasma electrode with arc-starting grooves An electrode and a plasma arc torch are provided wherein the useful service life of the electrode is extended and the starting ability of the torch is improved because the arc is transferred from an initiation point to a final attaching point which is cen...	09/14/1999
5635086	Laser-plasma arc metal cutting apparatus A metal cutting apparatus which comprises a longitudinally moveable gantry and a transversely moveable carriage which is mounted on the gantry. The carriage in turn mounts a laser cutting head and a plasma arc cutting head mounted in a parallel, side-by-s...	06/03/1997
5358221	Block assembly for use in metal scarfing apparatus A block assembly for a thermochemical scarfing apparatus which allows a greater diagonal standoff distance from the metal workpiece during preheating. The block assembly comprises a base member and an extension releasably joined to the base member, and th...	10/25/1994

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Assignee: The Esab Group, Inc.