| Entries |
| Document | Title | Date |
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| 20080237201 | PORTABLE AUTONOMOUS MATERIAL PROCESSING 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 plasma delivery device received via the controller current from the power source and gas from the gas source to generate a plasma arc at an output of the plasma delivery device. The plasma arc can be used to process materials such as metallic workpieces. The plasma arc torch can include a wearable portable assembly which includes the replaceable or rechargeable power and gas source. A plasma delivery device receives current from the power source in the assembly and gas from the gas source in the assembly to generate a plasma arc. | 10-02-2008 |
| 20090101629 | EROSION RESISTANT TORCH - An erosion resistant torch for use in a solid free form fabrication system for manufacturing a component from successive layers of metal feedstock material. The erosion resistant torch includes a torch structure defining a torch nozzle formed of a highly conductive bulk material. The erosion resistant torch further includes a gas flow channel and an orifice defined therein. An arc electrode is disposed within the gas flow channel. An erosion resistant material is disposed between the torch nozzle and the arc electrode in the form of a coating layer or an erosion resistant insert. The erosion resistant material is formed of one of a refractory material or a ceramic material. | 04-23-2009 |
| 20090134129 | ABLATIVE PLASMA GUN APPARATUS AND SYSTEM - An ablative plasma gun subassembly is disclosed. The subassembly includes a body, a first pair and a second pair of gun electrodes having distal ends disposed within an interior of the body, and ablative material disposed proximate the distal ends of at least one of the first pair of gun electrodes and the second pair of gun electrodes. | 05-28-2009 |
| 20090212027 | Binary Signal Detection - A system and method for identifying a torch assembly associated with a thermal processing system can include a detector that detects a multi-bit binary signal based on a plurality of open circuits or closed circuits with the thermal processing system. Each representative binary signal can comprise an individual physical component. The system can also include a control mechanism in communication with the detector, the control mechanism identifying at least one characteristic of the torch assembly based upon the multi-bit binary signal. | 08-27-2009 |
| 20100102040 | PLASMA TORCH FOR USE IN A WASTE PROCESSING CHAMBER - The invention is a plasma torch for insertion through an opening in the wall of a waste processing chamber. The plasma torch of the invention is characterized by comprising a coaxial sleeve having an upper end and a lower end. The sleeve surrounds at least the portion of the outer surface of the torch that is located in the opening, thereby forming an insulating chamber between the outer surface if the torch and the inner surface of the sleeve. At least a portion of the portion of the coaxial sleeve that surrounds at least the portion of the outer surface of the torch that is located in the opening in the wall of the processing chamber is porous or permeable to a heat exchanging fluid. The torch comprises an inlet for introducing the heat exchanging fluid into the insulating chamber. When the plasma torch is inserted through the opening, a gap exists between the processing chamber wall and the coaxial sleeve. Thus the coaxial sleeve and the insulating chamber shield the outer surface of the plasma torch from a significant amount of the heat that radiates from the processing chamber wall and from inside the processing chamber and the heat exchanging fluid that flows through the inlet exits the insulating chamber into the processing chamber. | 04-29-2010 |
| 20100243619 | PLASMA ARC TORCH ROTATIONAL ASSEMBLY - A plasma torch rotation assembly for relieving stress on a lead. The rotation assembly can include an outer housing, which can have a mounting surface adapted to be fixedly coupled to a torch mount. The rotation assembly can include an inner component disposed at least partially within the outer housing, and a bearing structure disposed between the outer housing and the inner component. The bearing structure can facilitate rotational movement of the outer housing relative to the inner component, about a longitudinal axis of the rotation assembly. The rotation assembly can include a torch adapter disposed near a first end of the inner component. The torch adapter can be adapted to mate with a plasma arc torch. The rotation assembly can include a receiving portion disposed at a second end of the inner component, the receiving portion adapted to receive at least a portion a lead. | 09-30-2010 |
| 20100294744 | DUAL MODE PLASMA ARC TORCH - A dual mode plasma arc torch and methods of operation thereof are provided, wherein the plasma arc torch is operable with both a high frequency power supply and a contact start power supply. | 11-25-2010 |
| 20100301021 | ABLATIVE PLASMA GUN - An ablative plasma gun is presented. The ablative plasma gun includes a first gun electrode and a second gun electrode arranged between a dielectric layer to form a longitudinal slot. An opening at a distal end of the longitudinal slot is provided to spread generated plasma. | 12-02-2010 |
| 20110084049 | Multipurpose Track and Radius Plate Burner Apparatus - A multipurpose track and radius plate burner apparatus that permits beveled and nonbeveled burning in a workpiece is provided. The apparatus provides capability to make circle or radius burns as well as track or straight line burns. The apparatus may be used with all standard torch heads as well as mini torches. The apparatus has other applications, including making burns in corners or restricted areas, use as a protractor and use as trammel points. | 04-14-2011 |
| 20110198320 | Alignment Features for a Plasma Torch Connector Assembly - A connector assembly for coupling a plasma torch to a receptacle including a connector body configured to receive a mating connector body. The connector body is attachable to a power supply or a plasma arc torch. One or more circumferentially shaped blades extend axially from a surface of the connector body and form a blade ring. One or more gaps can be disposed relative to the surface of the connector body. The plurality of gaps are defined by and between the circumferentially shaped blades. A distance of the gaps between the circumferentially shaped blades extends along a portion of the circumference of the blade ring. The plurality of gaps can be asymmetrically distributed about the blade ring to facilitate proper rotational alignment, and are shaped to align with corresponding circumferentially shaped blades of the mating connector body. | 08-18-2011 |
| 20110240608 | ELECTRICAL CONTACT POINT DEVICE FOR USE IN A PLASMA ARC CUTTING TORCH - Some embodiments relate to an electrical contact assembly for a plasma torch tip, and may include an electrical contact portion, a compressible portion in mechanical communication with the contact, and a mounting portion in mechanical communication with the compressible portion. Some embodiments may be adapted to maintain contact with an uneven substrate during translation of the torch tip. | 10-06-2011 |
| 20110253682 | Thermal nucleus fusion torch method - There is an improved fusion plasma torch apparatus-engines and method. Deuterium-Tritium or other fusion reaction reagents are injected in a fusion reaction channel where is highest current DC/AC arc upon which is imposed modulating frequency in negative polarity causing under resonance frequency extinguishing whatever transversal plasma arc vibrations thereby eliminating plasma arc's bypassing to a wall and consequently decreasing the heat losses at the expense of dropping down convective and conductive heat exchange and locating the plasma arc column strictly in the center of arc's channel.c | 10-20-2011 |
| 20120012565 | Diffuser Shape Vent Slots in a Hand Torch Shield Castellation - A torch tip for a plasma arc torch includes a body having a first end, configured to attach to the torch, and a second end, where an end wall is disposed. A plasma exit orifice is formed in the end wall. At least two castellations are formed in the end wall. At least one slot is disposed between two castellations. Each slot is defined by a first and second castellation wall, and a slot floor. The first castellation wall is opposite the second castellation wall. The torch tip has at least one of the following characteristics: a slope of the slot floor within the at least one slot tapers in an outward radial direction relative to the plasma exit orifice toward the first end of the body, or a distance between the first and second castellation walls along the slot floor increases with distance away from the exit orifice. | 01-19-2012 |
| 20120012566 | Protective Shell for a Hand Held Plasma Cutting Torch - A protective shell for surrounding a portion of a body of a handheld plasma torch includes a first and second shell section. The plasma torch body includes a handle, a head extending from the handle and a torch tip extending from the head. The first shell section is structurally independent from an outer surface of the plasma torch body. The second shell section is structurally independent from the outer surface of the plasma torch body and is capable of being secured to the first shell section such that, in combination, the first and second shell sections surround the torch head and provide (i) structural protection to the torch head and (ii) thermal insulation to the torch head, wherein the first and second shell sections are electrically insulated relative to the torch head. | 01-19-2012 |
| 20120018410 | Microwave Plasma Generating Plasma and Plasma Torches - The invention relates to a plasma generating device that comprises at least one very high frequency source (>100 MHz) connected via an impedance adaptation device to an elongated conductor attached on a dielectric substrate, at least one means for cooling said conductor, and at least one gas supply in the vicinity of the dielectric substrate on a side opposite to that bearing the conductor. The invention also relates to plasma torches using said device. | 01-26-2012 |
| 20120067854 | APPARATUS AND SYSTEM FOR ARC ELMINATION AND METHOD OF ASSEMBLY - An ablative plasma gun includes a first portion having a first diameter and a second portion having a second diameter that is larger than the first diameter, wherein a chamber is defined by the first portion and the second portion. | 03-22-2012 |
| 20120080412 | DEVICE FOR PROVIDING A FLOW OF PLASMA - The present invention provides a hand-held device | 04-05-2012 |
| 20120097646 | PLASMA IGNITION AND SUSTAINING METHODS AND APPARATUSES - An apparatus for generating plasma including a plasma generating vessel and a coil having a coil length and a first set of partially enclosing, longitudinally oriented conductive (PELOC) fingers and a second set of PELOC fingers. The PELOC finger sets are oriented along a longitudinal axis of the vessel with each partially enclosing a periphery of the vessel. The two sets of PELOC fingers are oriented fingertips facing fingertips and separated by an inter-set distance that is less than the coil length. | 04-26-2012 |
| 20120097647 | METHODS AND APPARATUS FOR IGNITING AND SUSTAINING PLASMA - Atmospheric inductively coupled plasma torch comprising a vessel within which the plasma is generated and a coil wound around the periphery of the vessel. The coil has at least two spaced-apart winding layers. The coil is constructed such that all winding layers of a given multi-turn is wound before an adjacent multi-turn is wound. A first end of the coil is coupled to ground, and a second end of the coil is coupled to receive a RF driver signal that is configured to ignite the plasma to facilitate processing. | 04-26-2012 |
| 20120168410 | SYSTEMS, METHODS, AND APPARATUS FOR PREVENTING ELECTROMIGRATION BETWEEN PLASMA GUN ELECTRODES - A circuit protection device includes a plasma gun configured to generate a plasma plume, at least one capacitor configured to store electrical energy, and a trigger circuit communicatively coupled to the plasma gun and the capacitor. The trigger circuit is configured to transmit a first signal to the capacitor to cause the capacitor to transmit a first portion of the electrical energy to the plasma gun. The trigger circuit is also configured to transmit a second signal to the plasma gun to cause the plasma gun to generate the plasma plume using the first portion of the electrical energy. | 07-05-2012 |
| 20120181257 | Electrode for a Contact Start Plasma Arc Torch and Contact Start Plasma Arc Torch Employing Such Electrodes - A component for a contact start plasma arc torch is provided. The component includes a hollow body defining a channel with a longitudinal axis. The channel is capable of slideably receiving an electrode body along the longitudinal axis. The component includes a contact element disposed in the hollow body and includes a first surface and a second surface. The first surface is adapted to facilitate electrical communication with a power supply and the second surface is adapted to physically contact a surface of the electrode body when the plasma arc torch is operated in a transferred arc mode. In addition, the second surface is characterized by the absence of physical contact with the surface of the electrode body when the torch is operated in a pilot arc mode. | 07-19-2012 |
| 20120199563 | METHOD AND APPARATUS FOR RECYCLING SHIELD GAS IN A PLASMA ARC TORCH - A method of operating a plasma arc torch is provided that includes directing a first portion of gas into a plasma chamber, directing a second portion of the gas to initiate a pilot arc in the plasma chamber, and redirecting the second portion of the gas to form a shield gas flow rather than venting the second portion to atmosphere. A plasma arc torch for this method includes a start cartridge disposed between an electrode and a tip for initiating the pilot arc. The start cartridge defines at least one redirect gas passageway in fluid communication with a shield gas passageway. The second portion of gas is redirected through the at least one redirect gas passageway and into the shield gas passageway. | 08-09-2012 |
| 20120298634 | RETRACT START PLASMA TORCH WITH REVERSIBLE COOLANT FLOW - An improved plasma torch and method of starting the torch are provided. The torch may comprise a main torch body with an electrode assembly coupled to a piston therein. The piston and electrode assembly are moveable between a starting position whereby the electrode assembly contacts a nozzle, and an operating position whereby the electrode assembly does not contact the nozzle. The piston is moveable by directing fluid, which may comprise coolant, through the plasma torch either in a first direction which biases the piston to the starting position, or in an opposite second direction which biases the piston so as to retract the electrode assembly to the operating position. A reversing valve or reversible pump may be used to control the direction of the flow of the fluid. Thereby, the coolant supply may be used to both cool the torch and control the starting and operation of the torch. | 11-29-2012 |
| 20130043223 | PLASMA TORCH AND TORCH HANDLE HAVING ERGONOMIC FEATURES - A plasma torch having a torch handle is provided. The plasma torch handle may be formed from a soft material and a hard material. Additionally, the plasma torch handle includes a thumb contour formed from the soft material and a finger contour formed from the soft material. In one embodiment, the plasma torch handle forms an angle of about 80° with the torch head. Plasma cutting systems having the plasma torch and handle are also provided. | 02-21-2013 |
| 20130087535 | DRAG CAP FOR A PLASMA ARC TORCH - A consumable component for use in a plasma arc torch is provided that includes a body having a distal end face and at least one extension disposed within the distal end face. The extension is configured to maintain a predetermined torch height above a workpiece during drag cutting operations, for either manual or automated plasma cutting operations. | 04-11-2013 |
| 20130126486 | Multi Zone Gas Injection Upper Electrode System - A system and method of plasma processing includes a plasma processing system including a plasma chamber and a controller coupled to the plasma chamber. The plasma chamber including a substrate support and an upper electrode opposite the substrate support, the upper electrode having a plurality of concentric gas injection zones. | 05-23-2013 |
| 20130126487 | Electrode-Supporting Assembly for Contact-Start Plasma Arc Torch - An electrode-supporting assembly for a contact-start plasma arc torch has an insulator that partially houses an electrode, and employs a spring-loaded plunger to bias the electrode to a forward position. The spring is engaged between the plunger and a contact element attached to the insulator, and may conduct electrical current to the electrode. The plunger, spring, and contact element are retained in the insulator when the torch is opened to replace the electrode, which is a consumable part. The electrode and the plunger have axially-engagable mating surfaces to assure good thermal and electrical conductivity therebetween. Conductivity can be further enhanced by forming the plunger of silver or a silver-bearing alloy. In some embodiments, a passage through the insulator is partitioned into forward and rear chambers, with the plunger, spring, and contact element trapped in the rear chamber. | 05-23-2013 |
| 20130126488 | PLASMA GENERATING SYSTEM HAVING MOVABLE ELECTRODES - A plasma generating system is provided. The plasma generating system includes: a pair of electrodes having distal ends; an electrode holder holding the pair of electrodes; a gate having a surface on which the electrode holder is slidably mounted and adapted to be controlled by sliding the electrode holder on the surface; and a resilient member secured to the gate and adapted to generate a force to close the opening. The distal ends are adapted to move into an opening of the gate as the electrode holder slides along a direction on the surface and adapted to generate an electric arc to thereby ignite plasma in a gas. | 05-23-2013 |
| 20130175244 | Plasma Torch With Reversible Baffle - A plasma arc torch includes an annular baffle defining distinct faces A, B, C, and D. Faces A and C are opposite from each other, and faces B and D are opposite from each other. First passages for fluid flow extend between the faces A and C, and second passages extend between the faces B and D. The baffle is installable in an annular space between an inner wall and an outer wall, in either of two orientations. In a first orientation, the first passages are open to fluid flow and the second passages are closed by engagement of the inner and outer walls with the faces B and D, and in a second orientation, flipped over relative to the first orientation, the second passages are open to fluid flow and the first passages are closed by engagement of the inner and outer walls with the faces A and C. | 07-11-2013 |
| 20130319979 | PLASMA TORCH - A plasma torch comprises a cascade between a cathode and an anode. The cascade is an inter-electrode insert. An interior of the cascade is shaped so that a diameter of the interior expands in series in a plurality of steps from a side of the cathode to a side of the anode. As a result of the cascade being provided, the output power of the plasma torch is obtained not by an increase in the electric current but by an increase in the arc electric voltage. Therefore, the lifespan of each of the electrodes, i.e., the cathode and the anode, becomes remarkably longer. In addition, since a quasi laminar flow of the plasma is generated in the interior of the cascade, a fluctuation in the output power of the plasma jet is reduced. Thus, it is possible to lower the driving and operating costs. Therefore, it is possible to perform surface treatment such as plasma spraying, utilizing a high-performance plasma processing, a processing of refractory powder materials, and plasma chemistry processing and the like, with a high degree of efficiency. In addition, a side shield module is provided at an outlet side of the anode of the forming nozzle. The side shield module generates a gas shield jet which is coaxial, annular, and low-velocity. Thus, gas from the surrounding environment is prevented from flowing in. Consequently, oxygen is prevented from entering the forming nozzle and the plasma jet. Hence, it is possible to generate a plasma jet having a low Reynolds number of the plasma forming gas, with a quasi laminar flow, exhibiting low noise, the diameter of its cross section expanding in a stable manner, having a long plasma length, and comprising argon, nitrogen, and hydrogen. | 12-05-2013 |
| 20140027411 | Plasma Torch - To lengthen the service period on DC plasma abatement devices a modified DC plasma torch is provided with an electrically conductive cathode and an electrically conductive anode spaced apart from one another to form a gap therebetween; a metal swirl bush at least partially located within the gap and comprising a channel adapted to permit, in use, a gas to flow through the gap; and a ceramic element interposed between any one or more of: the cathode and the swirl bush; and the anode and the swirl bush. | 01-30-2014 |
| 20140151345 | METHOD FOR MAGNETIC CONTROL OF PLASMA ARC - A device for controlling a plasma arc is provided that includes a plurality of magnetic poles disposed around a distal end portion of a plasma arc torch. A plurality of electrical coils are wound around a proximal end portion of each of the plurality of magnetic poles, and a plurality of lead wires are connected to the plurality of electrical coils. A control system for controlling a current supplied to the plasma arc torch through the lead wires is also provided that changes at least one of a strength of a magnetic field produced by the magnetic poles, a polarity of the magnetic poles, and a movement of a magnetic force between the plurality of magnetic poles, such that a size and location of the plasma arc is controlled. | 06-05-2014 |
| 20140166631 | DEVICES AND METHODS FOR PROVIDING INFORMATION ON A TORCH - A torch for a welding or plasma cutting operation configured to provide information. The torch includes a torch body. The torch also includes indicators coupled to the torch body and control circuitry coupled to the indicators and configured to provide data relating to the welding or plasma cutting operation to the indicators. | 06-19-2014 |
| 20140263202 | Integrated Magnetron Plasma Torch, and Related Methods - A plasma source for generating microwave-induced plasma includes a plasma torch integrated with a microwave energy source. The torch establishes a gas flow path from one side of the plasma source to the other side. The torch may be integrated with the microwave energy source such that a plasma-forming gas flowing through the torch is subjected to microwave radiation, which serves to initiate and/or sustain plasma in the torch. The plasma may be ejected from the torch and utilized in various applications involving the use of plasma, including analytical techniques such as optical emission spectrometry and mass spectrometry. | 09-18-2014 |
| 20140263203 | ASYMMETRIC INDUCTION DEVICES AND SYSTEMS AND METHODS USING THEM - Certain embodiments described herein are directed to devices, systems and methods that comprise asymmetric induction devices. In some instances, the device can include a plurality of plate electrodes which can be spaced asymmetrically or a plurality of coils which can be spaced asymmetrically. | 09-18-2014 |
| 20140291302 | TORCHES AND METHODS OF USING THEM - Certain embodiments described herein are directed to a torch that includes a lanthanide or actinide material. In some embodiments, the torch can include one or more other materials in combination with the lanthanide or actinide material. In some embodiments, the torch can comprise cerium, terbium or thorium. In other embodiments, the torch can comprise a lanthanide or actinide material comprising a melting point higher than the melting point of quartz. | 10-02-2014 |
| 20140319106 | INDUCTIVE PLASMA TORCH - The invention relates to an inductive plasma torch comprising: a cylindrical metal containment cage ( | 10-30-2014 |
| 20150351213 | Power Transfer Assembly for Contact-Start Plasma Arc Torch - A power transfer assembly for a contact-start plasma arc torch conducts electrical current to an electrode through mating structures provided on two conductive elements. The mating structures are defined by sidewalls that are parallel to an assembly axis, and are configured to translatably engage each other, but are blocked from rotating with respect to each other. A compression and torsion spring serves to bias the conductive elements apart to bias the electrode to a forward position, and to apply a torsional load to the mating structures to maintain their sidewalls in contact. The mating structures can be provided by a shaped recess in one conductive element and a corresponding shaped protrusion extending from the other element. The spring can be secured to the conductive elements to maintain the components of the power transfer assembly together when the torch in which they are employed is disassembled. | 12-03-2015 |
| 20160057846 | Rotatable Plasma Cutting Torch Assembly With Short Connections - A plasma torch assembly is provided with a torch body having a primary portion and a dielectric portion. The use of the dielectric portion allows for the length of the leads in the torch body to be shorter than known torches, especially in higher current applications. This provides for added stability and longevity of the torch and its components. | 02-25-2016 |
| 20160057847 | Rotatable Plasma Cutting Torch Assembly With Short Connections - A rotatable plasma torch is provided which can easily rotate when used in robotic or automatic cutting system while minimizing damage to internal connections of the torch. The torch is provided with a sleeve structure on the torch handle where there is no structure or component positioned between the sleeve and the exterior of the torch handle. | 02-25-2016 |
| 20160113102 | Interchangeable Power Contact for a Plasma Arc Cutting System - A power contact for a liquid-cooled plasma arc cutting system is provided. The cutting system includes a torch body and a lower torch assembly. The power contact comprises a substantially hollow body including an upper portion and a lower portion, and an external surface of the upper portion of the hollow body configured to matingly engage the torch body. The power contact further includes a thread region disposed on an internal surface of the hollow body. The thread region is configured to retain an electrode holder of the lower torch assembly of the plasma arc cutting system to matingly engage the lower torch assembly and secure the lower torch assembly to the torch body. | 04-21-2016 |
| 20160255711 | TORCHES AND METHODS OF USING THEM | 09-01-2016 |
