Assignee: Hypertherm, Inc.

Location: Hanover, NH
No. of patents: 87

Number	Title	Issue Date
8153927	High visibility plasma arc torch An improved torch providing high visibility of the work zone to the operator, an increased viewing angle, and a reduced obstruction angle. The high visibility torch includes consumables adapted to maintain torch and consumables performance while reducing visual obst...	04/10/2012
8115136	Electrode for a contact start plasma arc torch and contact start plasma arc torch employing such electrodes An electrode for a contact start plasma arc torch includes an elongated electrode body formed of an electrically conductive material. The electrode body is movable relative to the torch. A resilient element is used for passing substantially all of a pilot arc curren...	02/14/2012
D654104	Mechanized plasma torch	02/14/2012
8101882	Plasma torch electrode with improved insert configurations An improved electrode for use in a plasma arc torch. The electrode includes an electrode body, a bore defined by and disposed in the electrode body, and an insert disposed in the bore. The insert and/or the bore of the electrode are configured to improve retention o...	01/24/2012
8097828	Dielectric devices for a plasma arc torch Apparatus and methods for thermally processing a workpiece include directing a plasma arc to the workpiece and using a dielectric shield or dielectric coating to protect a forward portion (e.g., a torch head) of a plasma arc torch. The dielectric shield or dielectri...	01/17/2012
8089025	Gas-cooled plasma arc cutting torch A method and apparatus for a gas-cooled plasma arc torch. Components of the torch can include an electrode, nozzle and a shield, each of which can be gas-cooled. The nozzle can be disposed relative to the electrode and can include a generally hollow conductive body ...	01/03/2012
8035055	Electrode for a contact start plasma arc torch and contact start plasma arc torch employing such electrodes An electrode for a contact start plasma arc torch includes an elongated electrode body formed of an electrically conductive material that defines a longitudinal axis and a distal end for housing an emissive element. The electrode includes a second end positioned adj...	10/11/2011
7989727	High visibility plasma arc torch An improved torch providing high visibility of the work zone to the operator, an increased viewing angle, and a reduced obstruction angle. The high visibility torch includes consumables adapted to maintain torch and consumables performance while reducing visual obst...	08/02/2011
7911816	Linear, inductance based control of regulated electrical properties in a switch mode power supply of a thermal processing system A method and apparatus is featured for providing linear control of a regulated electrical property (e.g., current or voltage) in a switch mode power supply of a thermal processing system that includes an inductive element and at least one switching element. The meth...	03/22/2011
7829816	Plasma arc torch providing angular shield flow injection Plasma arc torches described herein include a torch tip with an improved nozzle that provides angular shield flow injection. In particular, the nozzle provides angular/conical impingement of a fluid (e.g., a shield gas) on an ionized plasma gas flowing through a pla...	11/09/2010
D625746	Plasma hand torch	10/19/2010
7800901	Power supply cooling apparatus and configuration An improved system for cooling a power supply of a welding or plasma cutting system, and an improved configuration of a power supply. The system cools achieves the improvement in configuration and cooling by mounting electrical components to a circuit board and then...	09/21/2010
7778799	Automated self test for a thermal processing system Described are computer-based methods and apparatuses for automated self test for a thermal processing system. A signal to execute the automated self test is received. The automated self test is executed. The execution includes executing one or more self test instruc...	08/17/2010
7762830	Connector for a thermal cutting system or welding system A connector assembly for a thermal cutting system or welding system can include a housing having a locking device. The locking device can cause, upon application of a translational force, engagement of the connector assembly relative to a stationary receiving mechan...	07/27/2010
7754996	Method and apparatus for alignment of components of a plasma arc torch A coolant tube and electrode are adapted to mate with each other to align the tube relative to the electrode during operation of the torch. Improved alignment ensures an adequate flow of coolant along an interior surface of the electrode. In one aspect, an elongated...	07/13/2010
7709765	Networking architecture for thermal processing system A thermal processing system includes a thermal torch for processing a workpiece, a power supply for providing power to the thermal torch, a positioning system for relatively moving the thermal torch and the workpiece, a controller for controlling the thermal process...	05/04/2010
7659488	Composite electrode for a plasma arc torch A plasma arc torch that includes a torch body having a nozzle mounted relative to a composite electrode in the body to define a plasma chamber. The torch body includes a plasma flow path for directing a plasma gas to the plasma chamber in which a plasma arc is forme...	02/09/2010
7615720	Pilot arc circuit for a contact start plasma torch A contact start plasma system is provided that includes a passive pilot arc circuit that decreases the size and cost of the system. The plasma arc system includes a torch body, an electrode having a longitudinally disposed axis and mounted in the body, a nozzle havi...	11/10/2009
7615719	Autonomous plasma cutting system A portable plasma arc torch system can be used for processing materials. The system includes a replaceable or rechargeable power source and replaceable or rechargeable gas source. A controller communicates with at least one of the power source or the gas source. A p...	11/10/2009
7605340	Apparatus for cooling plasma arc torch nozzles The invention relates to a nozzle for a plasma arc torch and methods of manufacturing the nozzle. The nozzle includes a nozzle body and a nozzle liner. The nozzle body has a cylindrical portion and the nozzle liner has a cylindrical section in close thermal contact ...	10/20/2009
7598473	Generating discrete gas jets in plasma arc torch applications The invention is generally directed to a nozzle for a plasma torch, the nozzle having a rear portion that defines at least a portion of a plasma chamber and a front portion that includes a first end and a second end. The first end is adjacent the rear portion, and t...	10/06/2009
7375303	Plasma arc torch having an electrode with internal passages An electrode for a plasma arc cutting torch which minimizes the deposition of high emissivity material on the nozzle, reduces electrode wear, and improves cut quality. The electrode has a body having a first end, a second end in a spaced relationship relative to the...	05/20/2008
7375302	Plasma arc torch having an electrode with internal passages An electrode for a plasma arc cutting torch which minimizes the deposition of high emissivity material on the nozzle, reduces electrode wear, and improves cut quality. The electrode has a body having a first end, a second end in a spaced relationship relative to the...	05/20/2008
7193174	Method and apparatus for alignment of components of a plasma arc torch A coolant tube and electrode are adapted to mate with each other to align the tube relative to the electrode during operation of the torch. Improved alignment ensures an adequate flow of coolant along an interior surface of the electrode. In one aspect, an elongated...	03/20/2007
7186947	Process monitor for laser and plasma materials processing of materials A method for monitoring the processing of a workpiece includes directing an incident laser beam onto the workpiece and measuring a signal emitted from the workpiece. At least two signals are generated by a detector based upon the emitted signal. A workpiece processi...	03/06/2007
7049540	Process and apparatus for cutting or welding a workpiece A metal jet cutting system, which includes a jetting heat, a heater and a power source, is used for modifying a workpiece. The jetting head includes a crucible and an inlet for receiving a feed stock of a conductive material. The heater melts the conductive material...	05/23/2006
7019255	Method and apparatus for alignment of components of a plasma ARC torch A coolant tube and electrode are adapted to mate with each other to align the tube relative to the electrode during operation of the torch. Improved alignment ensures an adequate flow of coolant along an interior surface of the electrode. In one aspect, an elongated...	03/28/2006
6947802	Centralized control architecture for a laser materials processing system Apparatus, systems, and methods for monitoring the processing of a workpiece that includes directing an incident laser beam onto the workpiece and using an optical detector for measuring a signal emitted from the workpiece as a result of the incident laser beam. The...	09/20/2005
6946617	Method and apparatus for alignment of components of a plasma arc torch A coolant tube and electrode are adapted to mate with each other to align the tube relative to the electrode during operation of the torch. Improved alignment ensures an adequate flow of coolant along an interior surface of the electrode. In one aspect, an elongated...	09/20/2005
6900408	Centralized control architecture for a plasma arc system The invention features a centralized control architecture for a closely-coupled plasma arc system, in which the “intelligence” of the system is integrated into a single controller. The closely-coupled plasma arc system includes a power source, an automatic proce...	05/31/2005
6852943	Strain relief mechanism for a plasma arc torch The present invention relates to a strain relief mechanism for a plasma arc torch. In particular, the invention relates to a strain relief system including a positive axial restraint component for restraining axial movement of a lead relative to a housing and a posi...	02/08/2005
6841754	Composite electrode for a plasma arc torch A plasma arc torch that includes a torch body having a nozzle mounted relative to a composite electrode in the body to define a plasma chamber. The torch body includes a plasma flow path for directing a plasma gas to the plasma chamber in which a plasma arc is forme...	01/11/2005
6772040	Centralized control architecture for a plasma arc system The invention features a centralized control architecture for a closely-coupled plasma arc system, in which the “intelligence” of the system is integrated into a single controller. The closely-coupled plasma arc system includes a power source, an automatic proce...	08/03/2004
6720518	Process and apparatus for cutting or welding a workpiece A metal jet cutting system, which includes a jetting heat, a heater and a power source, is used for modifying a workpiece. The jetting head includes a crucible and an inlet for receiving a feed stock of a conductive material. The heater melts the conductive material...	04/13/2004
6713709	Process and apparatus for cutting or welding a workpiece A metal jet cutting system, which includes a jetting heat, a heater and a power source, is used for modifying a workpiece. The jetting head includes a crucible and an inlet for receiving a feed stock of a conductive material. The heater melts the conductive material...	03/30/2004
6667459	Configurable nozzle baffle apparatus and method A configurable baffle to configure fluid flow through a nozzle. To improve the quality and accuracy of processing apparatus used in the cutting, welding, and heat treating of materials, a self-aligning nozzle includes a configurable baffle. This configura...	12/23/2003
6614001	Nozzle for plasma arc torch An output structure for material processing apparatus facilitates field replacement of consumable components, while maintaining important alignments. Contoured surfaces within the output structure mate with corresponding contoured surfaces on the consumab...	09/02/2003
6525291	Process and apparatus for cutting or welding a workpiece A metal jet cutting system, which includes a jetting heat, a heater and a power source, is used for modifying a workpiece. The jetting head includes a crucible and an inlet for receiving a feed stock of a conductive material. The heater melts the conducti...	02/25/2003
6472631	Strain relief mechanism for a plasma arc torch The present invention relates to a strain relief mechanism for a plasma arc torch. In particular, the invention relates to a strain relief system including a positive axial restraint component for restraining axial movement of a lead relative to a housing...	10/29/2002
6424082	Apparatus and method of improved consumable alignment in material processing apparatus An output structure for material processing apparatus facilitates field replacement of consumable components, while maintaining important alignments. Contoured surfaces within the output structure mate with corresponding contoured surfaces on the consumab...	07/23/2002

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Assignee: Hypertherm, Inc.