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| Number | Title | Issue Date |
| 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 |
| 7973262 | Powerplant and method using a triple helical vortex reactor A powerplant and method for production and use of synthesis gas from a hydrocarbon fuel is disclosed in a combination of a triple helical flow vortex reactor (100) and a power producer (510). The triple helical flow vortex reactor (100) steam-re... | 07/05/2011 |
| 7935909 | Hybrid shield device for a plasma arc torch Methods and devices for controlling the flow of gases through a plasma arc torch are provided. A flow of plasma gas is directed to a plasma chamber, a first flow of auxiliary gas is directed around a plasma stream that exits a tip in one of a swirling manner and a r... | 05/03/2011 |
| 7875825 | Plasma generating equipment A method for generating plasma and a method for elemental analysis, each comprising the steps of providing a narrow portion in a flow channel made of an insulation material, the narrow portion having a cross-sectional area markedly smaller than a cross-sectional are... | 01/25/2011 |
| 7842898 | Variable orifice torch A variable orifice torch for use in a solid free form fabrication system for manufacturing a component from successive layers of metal feedstock material. The variable orifice torch includes a torch structure defining a torch nozzle formed of a highly conductive bul... | 11/30/2010 |
| 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 |
| 7759600 | Rupture resistant plasma tube A system for producing plasma tubes that can withstand a wide variety of physical and environmental stressors within a plasma processing system is disclosed. Within such a plasma processing system, a plasma tube structure has a central body portion—having a fixed ... | 07/20/2010 |
| 7737383 | Contoured shield orifice for a plasma arc torch A component for use in a plasma arc torch is provided that includes a continuously contoured surface extending along the component that directs a flow of shield gas at a predetermined angle to result in a specific pierce or cut location on a workpiece. In one form, ... | 06/15/2010 |
| 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 |
| 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 |
| 7572998 | Method and device for creating a micro plasma jet A microhollow cathode discharge assembly capable of generating a low temperature, atmospheric pressure plasma micro jet is disclosed. The microhollow assembly has at two electrodes: an anode and a cathode separated by a dielectric. A microhollow gas passage is dispo... | 08/11/2009 |
| 7547861 | Vortex generator for plasma treatment A vortex generator uses a single piece to generate the vortex and hold the electrode. The single piece may be a non-conductive material such as a ceramic. The vortex generator may use threads to hold the electrode. The threads and holes for generating the vortex may... | 06/16/2009 |
| 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 |
| 7429714 | Modular ICP torch assembly A modular inductively coupled plasma torch assembly is described. A rear connector unit is positioned and detachably held at a rear end of a tubular plasma chamber to provide a flow of material into it. Detachable connector units are positioned on opposite ends of a... | 09/30/2008 |
| 7429715 | Modular plasma arc torch A modular plasma arc torch is provided that comprises a torch head and a torch lead, and a quick disconnect that is operatively engaged between the torch head and the torch lead. Accordingly, the torch head and torch lead may be quickly assembled and disassembled th... | 09/30/2008 |
| 7423234 | Process for the surface treatment of an article containing silicone crosslinked by polyaddition A process for increasing the surface tension (“wettability”) of a silicone element crosslinked by polyaddition from a liquid composition containing one or more α,ω-dimethylvinylpolydimethylsiloxanes (PDMS), one or more poly(dimethyl)(methylhydrogenosiloxy)-α,... | 09/09/2008 |
| 7381363 | Plasma processing apparatus for powder and plasma processing method for powder A plasma processing apparatus for powder, and a plasma processing method of powder, in which a powder supply nozzle is provided to supply a powder material into plasma flame generated inside a high-frequency coil, the powder supply nozzle arranged substantially radi... | 06/03/2008 |
| 7375301 | Modular anode support member for plasma spray gun The present invention provides a modular anode support member for a plasma spray gun including an outer sleeve, an inner sleeve, and a coolant tube connectable to the outer sleeve. The outer sleeve having a cylindrical sidewall defining a central opening through a l... | 05/20/2008 |
| 7367196 | Spinning cold plasma apparatus and methods relating thereto Disclosed herein is an apparatus for generating a spinning cold plasma. A preferred embodiment of the spinning cold plasma apparatus is portable and includes a vortex tube having an inner wall to form a vortex reaction chamber. The vortex tube preferably has a cold ... | 05/06/2008 |
| 7342197 | Plasma torch with corrosive protected collimator To protect the collimator of a transferred plasma arc torch from premature failure due to corrosion, an anti-corrosive covering is applied on the exposed face surface and a portion of the inner exit bore of the collimator. The specification describes several methods... | 03/11/2008 |
| 7335850 | Plasma jet electrode device and system thereof A plasma jet electrode device includes an orientation base, a ceramic pipe, a round plate having a plurality of tilted through holes thereon and a high-voltage metal electrode. A dielectric discharging plasma area is formed between the high-voltage metal electrode a... | 02/26/2008 |
| 7326874 | Vented shield system for a plasma arc torch Vented shield systems for plasma arc torches are provided that comprise a shield cup body defining a distal end portion, a vented retainer secured to the distal end portion of the shield cup body, and a shield cap secured to the vented retainer. The vented retainer ... | 02/05/2008 |
| 7297893 | Plasma arc collimator design and construction An improved collimator for a plasma arc torch consists of an annular holder member and an insert member. The insert member includes a tubular stem portion ending in an integrally formed, radially extending face plate. When the stem portion is fitted into the central... | 11/20/2007 |
| 7273995 | Plasma generator A microfabricated plasma generator and a method of generating a plasma, the plasma generator comprising: a substrate chip; a chamber defined by the substrate chip, the chamber including an inlet port through which analyte is in use delivered, an outlet port and a pl... | 09/25/2007 |
| 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 |
| 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 |
| 7217903 | Method for purifying gas using plasma discharge A method is provided for purifying gases, particularly gases contaminated by environmentally harmful substances, by way of plasma discharge. The gas to be purified is guided through a thermal plasma, which is generated by electrodeless ignition of a process gas, so ... | 05/15/2007 |
| 7198854 | Silicone composition useful especially for the production of anti-friction varnish, process for the application of said varnish to a substrate, and treated substrate A silicone composition useful especially for the production of varnishes applicable to substrates whose coefficient of friction it is sought to reduce. The object is to provide an anti-friction silicone varnish for textiles coated with silicone elastomers which is e... | 04/03/2007 |
| 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 |
| 7183515 | Systems and methods for plasma jets A plasma jet system includes a housing with an opening. A plasma generator is coupled to ionize a fluid in the housing. An electromagnetic accelerator is coupled to generate an electric field that accelerates ionized fluid in the housing toward the opening. A contro... | 02/27/2007 |
| 7176404 | System for quick disconnect of torch from power and gas supply unit A torch cable in which both the electrical connection and the pneumatic connection can be made concurrently in one motion by coupling the end of the torch cable to the exterior of the supply unit. The coupling further includes a quick disconnect feature. The torch c... | 02/13/2007 |
| 7164095 | Microwave plasma nozzle with enhanced plume stability and heating efficiency Systems and methods for generating relatively cool microwave plasma. The present invention provides a microwave plasma nozzle that includes a gas flow tube through which a gas flows, and a rod-shaped conductor that is disposed in the gas flow tube and has a tapered ... | 01/16/2007 |
| 7161111 | Plasma torch having a quick-connect retaining cup A plasma torch assembly having a quick-connect retaining cup is disclosed. The plasma torch has a torch body constructed to receive an electrode therein. A retaining cup secures the electrode to the torch body by rotating the retaining cup less than approximately 36... | 01/09/2007 |
| 7145099 | Tip gas distributor A tip gas distributor is provided that preferably comprises a plurality of swirl holes and a plurality of secondary gas holes, wherein the swirl holes direct a plasma gas to generate a plasma stream, and the secondary gas holes direct a secondary gas to stabilize th... | 12/05/2006 |
| 7145098 | Plasma arc torch A plasma arc torch is provided that comprises a set of torch consumable components secured to a torch head, wherein a supply of cooling fluid flows coaxially through the torch to cool torch components and a supply of plasma gas and secondary gas flows through the to... | 12/05/2006 |
| 7141138 | Gas delivery system for semiconductor processing The present invention is directed to improving defect performance in semiconductor processing systems. In specific embodiments, an apparatus for processing semiconductor substrates comprises a chamber defining a processing region therein, and a substrate support dis... | 11/28/2006 |
| 7135653 | Multi-phase alternating current plasma generator A plasma generation system that is powered with an alternating current power source has been developed. The system includes a plasma generator that heats gas to a high temperature to form plasma. The gas is heated by passing through an electrical arc generated by el... | 11/14/2006 |
| 7132619 | Plasma arc torch electrode A variety of electrodes for use in a plasma arc torch are provided that improve cooling between the electrode and an adjacent cathodic element such as a cathode. At least one passageway is formed between the electrode and the cathode for the flow of a fluid, e.g. co... | 11/07/2006 |
| 7124960 | Electric arc wire burner The invention relates to an electric arc wire burner for spraying an electric arc, comprising at least two burner tubes (3) for feeding electrodes which are embodied in the form of wire (5). Said electrodes are guided through the burner tube (3)... | 10/24/2006 |
