| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 219121500 | Nozzle system | 54 |
| 20080296268 | Plasma generator and workpiece processing apparatus using the same - Disclosed are a plasma generator and a workpiece processing apparatus, wherein an adapter | 12-04-2008 |
| 20090045174 | Device for exchanging a nozzle of a vapor plasma burner and nozzle and guard ring - The invention relates to a device for exchanging a nozzle ( | 02-19-2009 |
| 20090057276 | 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 radial manner, and a second flow of auxiliary gas is directed around the first flow of auxiliary gas and the plasma stream in one of a coaxial manner, an angled manner, and a radial manner. The first flow of auxiliary gas functions to constrict and shape the plasma stream to improve cut quality and cut speed, and the second flow of auxiliary gas functions to protect the plasma arc torch during piercing and cutting and to cool components of the plasma arc torch such that thicker workpieces may be processed with a highly shaped plasma stream. | 03-05-2009 |
| 20090057277 | DRAG TIP FOR A PLASMA CUTTING TORCH - A drag tip for use in a plasma cutting torch is provided that includes an inner tip portion defining a distal end face, an inner cavity through which a plasma gas flows, and an orifice disposed between the distal end face and the inner cavity. An outer tip portion surrounds the inner tip portion and defines an inner chamber to accommodate a flow of secondary gas and also a distal end portion. The distal end face of the inner tip portion is adapted for contact with a workpiece and extends distally beyond the distal end portion of the outer tip portion, and the flow of secondary gas exits the outer tip portion proximate the distal end portion. Variations of the drag tip and methods of operation are also provided. | 03-05-2009 |
| 20090078685 | PLASMA HEAD AND PLASMA-DISCHARGING DEVICE USING THE SAME - A plasma head and the plasma-discharging device using the same are disclosed. The plasma-discharging device comprises a power supply with two electrode terminals. The plasma head comprises: an outer electrode having a chamber formed therein; an inner electrode, disposed inside the chamber; and a flow guiding structure, disposed inside the inner electrode; wherein the outer electrode and the inner electrode are connected respectively to the two electrode terminals of the power supply; and the flow guiding structure further comprises at least an inlet for introducing a working fluid into the inner electrode and at least an outlet being communicated with the chamber of the outer electrode to guide the working fluid to flow into the chamber of the outer chamber. As the inner electrode can be cooled by the flowing working fluid, not only the wear and tear of the inner electrode can be avoided as its temperature is effective reduced, but also the lifetime of the inner electrode is prolonged and the contamination caused by ion stripping. | 03-26-2009 |
| 20090230095 | Apparatus and Method for a Liquid Cooled Shield for Improved Piercing Performance - A shield for a plasma arc torch that pierces and cuts a metallic workpiece producing a splattering of molten metal directed at the torch, the shield protecting consumable components of the plasma arc torch from the splattering molten metal. The shield can include a body, a first surface of the body configured to be contact-cooled by a gas flow, a second surface of the body configured to be contact-cooled by a liquid flow, and a seal assembly configured to be secured to the body and disposed relative to the second surface configured to retain the liquid flow contact-cooling the second surface. | 09-17-2009 |
| 20090255909 | Nozzle Head with Increased Shoulder Thickness - A consumable for a plasma arc torch, such as a nozzle, having a body and a head defining a shoulder portion having a frusto-conical portion and a flared portion. The flared portion increases the cross-sectional thickness to provide a greater heat-conduction path for removal of heat generated by a plasma arc, thereby extending consumable life. The frusto-conical portion provides a sharper, pointier nozzle head to simultaneously increase the operator's visibility of the workpiece. Methods of making and using the consumables are also included. | 10-15-2009 |
| 20100078408 | NOZZLE WITH EXPOSED VENT PASSAGE - A nozzle for a plasma torch can include a body that has an inner surface, an outer surface, a proximal end, and an exit orifice at a distal end. The nozzle can also include a liner surrounded by the inner surface of the body. The liner can include a proximal end and an exit orifice at a distal end adjacent the exit orifice of the body. The nozzle can include at least one vent passage formed in the body. The vent passage can have an inlet formed in the inner surface of the body and an outlet formed in the outer surface of the body. The vent passage can be disposed between the proximal end of the body and the proximal end of the liner. The plasma arc torch can include a configuration that allows for increased electrode life and nozzle life for a vented high current plasma process. | 04-01-2010 |
| 20100155373 | PLASMA TORCH, PLASMA TORCH NOZZLE, AND PLASMA-WORKING MACHINE - A plasma torch includes a torch main unit and a nozzle. The torch main unit has a nozzle seat member on which the nozzle is mounted. The nozzle is arranged to move toward or away from the nozzle seat member in a direction substantially parallel to a center axis of the nozzle when the nozzle is mounted on or removed from the nozzle seat member. The nozzle has an electroconductive surface facing the nozzle seat member. The torch main unit has an elastic electric contact portion contacting with the electroconductive surface of the nozzle to form an electroconductive path for a pilot arc to the nozzle. The electroconductive surface of the nozzle presses the electric contact portion in the direction substantially parallel to the center axis when the nozzle is moved toward the nozzle seat member to mount the nozzle on the nozzle seat member. | 06-24-2010 |
| 20100206853 | CONTOURED SHIELD ORIFICE FOR A PLASMA ARC TORCH - A component for use in a plasma arc torch is provided that includes an orifice that defines a continuously changing cross-sectional size along the length of a surface of the orifice from an inlet portion to an outlet portion. The surface extends along the component and 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, the component is a shield cap. The continuously changing surface may be convergent, divergent, or a combination of convergent and divergent according to the principles of the present disclosure. Additionally, the shield cap may comprise a single, unitary piece or alternately a plurality of pieces or components. | 08-19-2010 |
| 20100237048 | DEVICE TO INJECT A LIQUID FEED TO BE MIXED/CONVERTED INTO A PLASMA PLUME OR GAS FLOW - A device to inject liquid matter into a plasma torch, comprising N(N≧1) groups of injectors arranged on the periphery of a flow region of the plasma, each group comprising at least n (n≧2) injectors which are arranged either side of the plasma flow axis, so as to inject said liquid matter into the plasma in a direction at least partly opposite the direction of plasma flow. | 09-23-2010 |
| 20100252537 | Steam plasma torch - A steam plasma torch includes a anode in the form of a nozzle, a first body for receiving the anode, a flow swirler mounted between the anode and the rod type cathode for inducing vorticity into working gas flow, an insulator connected to the first body, a second body connected to the insulator and formed with a thread, an adjusting element formed with a thread engaged with the thread of the second body, a collet fit in the adjusting element and a cathode in the form of a rod fit in the collet. A gap between the anode and cathode is adjusted when the adjusting element is rotated relative to the second body. | 10-07-2010 |
| 20100264120 | Plasma Torch Head, Plasma Torch Shaft and Plasma Torch - A plasma torch head, a plasma torch shaft and a plasma torch for providing a quick and simple possibility of changing the plasma torch head are described. | 10-21-2010 |
| 20110024397 | Direct current steam plasma torch and method for reducing the erosion of electrodes thereof - A DC steam plasma torch includes front, middle and rear sections. The front section includes a first amount and a first electrode attached to the first amount, thus defining co-axial first internal and external coolant channels. The middle section includes a second mount and a second electrode co-axially connected to the second mount, thus defining co-axial second internal and external coolant channels. The rear section includes an insulating transient element connected to the second electrode, a window frame connected to the insulating transient element and a window provided in the window frame. A first swirl generator is provided between the first and second sections to receive primary working gas and generating a swirl in the same. A second swirl generator is provided between the middle and rear sections to receive auxiliary working gas and generating a swirl in the same. | 02-03-2011 |
| 20110042357 | PLASMA TORCH WITH ELECTRODE WEAR DETECTION SYSTEM - A plasma arc torch is provided that includes a wear stop designed to detect wear of an electrode and prevent the use of the electrode once the electrode has experienced a certain amount of wear. Either the electrode or the nozzle is movable with respect to the main torch body, and the movable component defines a projection. The wear stop is positioned a predetermined distance from a nozzle of the torch, such that prior to experiencing an excessive amount of wear, the electrode is able to contact the nozzle and initiate a pilot arc for starting a torch operation. Once the length of the electrode becomes shorter than a predetermined length due to wear, the projection of the electrode engages the wear stop, and the wear stop prevents the electrode from contacting the nozzle. In this way, an electrode that is excessively worn cannot be used in subsequent torch operations. | 02-24-2011 |
| 20110042358 | GAS DISTRIBUTION RING ASSEMBLY FOR PLASMA SPRAY SYSTEM - A gas distribution ring assembly for a plasma spray system includes a gas distribution ring including a plurality of openings allowing a gas to pass to an inner diameter thereof. The assembly also includes a separate positioning ring axially aligned with the gas distribution ring between the gas distribution ring and an electrically charged outlet of the plasma spray system. | 02-24-2011 |
| 20110049110 | ADJUSTABLE PLASMA SPRAY GUN - An adjustable plasma spray gun apparatus is disclosed. In one embodiment, an adjustable plasma spray gun apparatus includes: a plasma spray gun body having a fore portion and an aft portion; and a first coupler configured to removably attach to the plasma spray gun body at the aft portion, the coupler including: a first portion having a first axial opening configured to removably attach to the plasma spray gun body at the aft portion; and a second portion having a second axial opening configured to removably attach to one of an electrode body or a second coupler. | 03-03-2011 |
| 20110062124 | 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 plasma arc torch. Some of the torch tips described herein include a nozzle with a conical external shape combined with a shield with complementing internal geometry to form the angular fluid flow. As a result, a plasma arc torch including the improved nozzle have the benefits of a stabilized ionized plasma gas flow together with enhanced nozzle cooling and protection from reflecting slag during torch use. | 03-17-2011 |
| 20110108528 | Nozzle for a Liquid-Cooled Plasma Burner, Arrangement Thereof with a Nozzle Cap, and Liquid-Cooled Plasma Burner Comprising Such an Arrangement - The invention relates to a liquid-cooled plasma burner, comprising a nozzle bore for the plasma gas jet to exit at a nozzle tip and a first section whose outer surface gradually tapers in the shape of a cone at an angle α in the direction of the nozzle tip, except for at least one deflection section that extends in the shape of a cone at an angle β in the direction of the nozzle tip. The invention also relates to an arrangement thereof with a nozzle cap and to a plasma burner comprising such an arrangement. | 05-12-2011 |
| 20110248002 | PLASMA GENERATION APPARATUS - Provided is an apparatus, such as an arc mitigating device, that includes an annular body that defines a lumen and a longitudinal axis, the annular body having a body length along the longitudinal axis. An electrode can be disposed coaxially within the lumen. The electrode may extend into the body by an electrode length that is at least about 50% of the body length, and may have diameter less than or equal to about 50% of an inner diameter of the annular body. An ablative material portion can be disposed between the annular body and the electrode. The annular body and the electrode may be configured such that when an arc exists between the annular body and the electrode, the ablative material portion undergoes ablation and thereby generates a plasma. | 10-13-2011 |
| 20110259855 | Plasma Torch Electrode with Improved Cooling Capability - An electrode for a plasma arc torch includes a hollow elongated body having an open end and a closed end and an end face located at the closed end inside of the hollow elongated body. The end face has a center portion. A plurality of heat exchanging elements are in thermal communication with the end face. The heat exchanging elements have side walls defining an elongated channel between adjacent heat exchanging elements. The elongated channel extends radially from the center portion to an inner surface of the elongated body. The elongated channel provides a thermally conductive path that transfers sufficient heat from the elongated body to a cooling fluid during an operation of the plasma arc torch to prevent premature failure of the electrode. | 10-27-2011 |
| 20110284502 | Nozzle for a Liquid-Cooled Plasma Torch, Nozzle Cap for a Liquid-Cooled Plasma Torch and Plasma Torch Head Comprising the Same - A nozzle for a liquid cooled plasma torch includes a nozzle bore for the exit of a plasma gas beam at a nozzle tip, a first section, of which the outer surface is essentially cylindrical, and a second section connecting the nozzle tip, of which the second section the outer surface tapers essentially conically towards the nozzle tip, wherein at least one liquid supply groove is provided and extends over a part of the first section and over the second section in the outer surface of the nozzle towards the nozzle tip and at least one liquid return groove separate from the liquid supply groove is provided and extends over the second section. | 11-24-2011 |
| 20120031881 | Blow-Back Plasma Arc Torch With Shield Fluid-Cooled Electrode - A blow-back plasma arc torch employs a plasma gas and a separately supplied secondary fluid. The secondary fluid serves to internally cool an electrode of the torch and to shield the plasma gas and arc emanating from the primary nozzle of the torch. The secondary fluid can be a gas or liquid water. Secondary fluid or plasma gas is used to actuate a piston to which the electrode is connected so as to move the electrode from a starting position to an operating position. The secondary fluid is supplied to the torch at a greater mass flow rate than the plasma gas. | 02-09-2012 |
| 20120138578 | ELECTRODE FOR PLASMA ARC TORCH AND RELATED PLASMA ARC TORCH - Electrodes are disclosed for use in a non-contact initiation plasma arc torch, the electrodes including an electrode body having a distal end opposing the outlet of the nozzle and a tapered section adjacent the distal end configured so that the electrode diameter decreases in the direction of the distal end. The electrode tapered section includes at least one discontinuity forming an edge, the edge being disposed as so to have an included angle of no greater than about 90 degrees. The configuration of the edge provides a localized enhancement of electrical field during non-contact initiation of a pilot arc using the electrode. The discontinuity and edge can be formed in various ways. Related torch designs including nozzles are disclosed. | 06-07-2012 |
| 20120138579 | Nozzle for a Liquid-Cooled Plasma Torch and Plasma Torch Head having the Same - A nozzle for a liquid-cooled plasma torch, comprising a nozzle bore for the exit of a plasma gas jet at a nozzle tip, a first portion, the outer surface of which is substantially cylindrical, and a second portion adjacent thereto towards the nozzle tip, the outer surface of which tapers substantially conically towards the nozzle tip, wherein at least one liquid supply groove and/or at least one liquid return groove is/are provided and extend over the second portion in the outer surface of the nozzle ( | 06-07-2012 |
| 20120138580 | Protective Nozzle Cap, Protective Nozzle Cap Retainer, and Arc Plasma Torch having said Protective Nozzle Cap and or said Protective Nozzle Cap Retainer - A nozzle protection cap for an arc plasma torch comprises a front end section and a rear end section with a thread region on its inner surface for screwing to a torch body of an arc plasma torch. At least one groove crosses the thread region on the inner surface. A nozzle protection cap holder for the arc plasma torch comprises a section with a thread region on its outer surface for screwing to the nozzle protection cap. At least one groove crosses the thread region on its outer surface. An arc plasma torch comprises a torch body and a nozzle protection cap screwed thereto in a screw connection region. The torch body and/or the nozzle protection cap is/are designed so that at least one channel is formed between them, the channel crossing the screw connection region. | 06-07-2012 |
| 20120152912 | 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, contacting a proximal end of the electrode body, is used for imparting a separation force to the electrode body. The electrode body is adapted to overcome the separation force and engage a contact element of the torch when the torch is operated in a transferred arc mode. | 06-21-2012 |
| 20120152913 | 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. The electrode and torch can include a contact element having a first surface in electrical communication with the power contact and a second surface characterized by (i) physical contact with the electrode body during transferred arc mode and (ii) absence of physical contact with the electrode body during initiation of a pilot arc. | 06-21-2012 |
| 20120241418 | PLASMA TORCH SYSTEMS HAVING IMPROVED PLASMA NOZZLES - Nozzles for plasma torches and plasma torch systems utilizing such nozzles are provided herein. One such nozzle may include a body having a first end, a second end having an exit orifice disposed therein, and a passageway extending from the first end to the second end and adapted to enable the flow of plasma gas from the first end, through the passageway, and to the exit orifice. Greater than or equal to approximately 50% of an overall mass of the body is distributed between the second end and a midpoint of the body with respect to a longitudinal length of the body. | 09-27-2012 |
| 20120248072 | Plasma Actuated Vortex Generators - A plasma-actuated vortex generator arrangement includes a plurality of spaced-apart vortex generators, and a plasma actuator distributed amongst the plurality of vortex generators. | 10-04-2012 |
| 20120298631 | PLASMA TORCH AND METHOD FOR STABILIZING A PLASMA TORCH - The invention relates to a nontransferred arc plasma torch comprising: a tubular torch body ( | 11-29-2012 |
| 20130043222 | PLASMA TORCH AND RETAINING CAP WITH FAST SECURING THREADS - A retaining cap for a plasma torch is provided that includes fast securing threads. The retaining cap includes internal threads that couple to external threads of a torch body of the plasma torch. The internal and external threads may be multiple start threads having a thread angle greater than 60°. Plasma torches and plasma cutting systems are also provided. | 02-21-2013 |
| 20130068732 | Harmonic Cold Plasma Devices and Associated Methods - A nozzle for attachment to a cold plasma device configured to maintain delivery of a stable cold plasma. The nozzle can have many different shaped apertures to support different applications requiring different shaped cold plasma plumes. Use of a disc of foam material within a nozzle can expand the size of aperture of a nozzle while maintaining delivery of a stable cold plasma. The nozzle can be an elongated cannula tube for internal delivery of a cold plasma treatment. The cannula tube can provide an aperture at its distal end or one or more apertures along its length. A shroud can partially enclose the distal aperture of the nozzle. A sterile sleeve can be used in conjunction with a nozzle to provide a sterile means of attachment and operation of the nozzle with a cold plasma device. | 03-21-2013 |
| 20130075372 | NOZZLE FOR A LIQUID-COOLED PLASMA CUTTING TORCH WITH GROOVES - This application relates to a nozzle ( | 03-28-2013 |
| 20130098880 | INJECTOR FOR PLASMA SPRAY TORCHES - A liquid-in-gas injector tube in which the diameter of the inner liquid-bearing tube within the gas-transmitting tube is reduced adjacent the outlet end of the injector. Clogging may be further reduced by adding vanes to the outer surface of the inner liquid-bearing tube within the gas-transmitting tube to impart swirling or otherwise focus the flow of gas at the exit of the injector tube. | 04-25-2013 |
| 20130153545 | PLASMA JET ASSEMBLY AND PLASMA BRUSH INCLUDING THE SAME - Plasma jet assemblies are provided. A plasma jet assembly may include: a tube through which a gas flows; a power source providing a high frequency power exciting the gas in plasma state; a power electrode applying the high frequency power to the gas; and a plasma control unit removing arc discharge of a plasma gas generated in the tube by the high frequency power applied to the power electrode. | 06-20-2013 |
| 20130193118 | Plasma Gouging Torch and Angled Nozzle Therefor - A special-purpose plasma arc torch for gouging grooves in a metal workpiece includes an angled nozzle having a bore made up of a first bore portion and a second bore portion that makes an angle of about | 08-01-2013 |
| 20140021172 | Composite Consumables for a Plasma Arc Torch - A nozzle for use in a plasma arc torch is provided. The nozzle includes an aft portion comprising a conductive first material with a first density. The aft portion defines a proximal end and a distal end. The nozzle includes a substantially hollow forward portion including 1) a tip section comprising a conductive second material with a second density, and 2) a rear section configured to couple the forward portion to the proximal end of the aft portion. The second density is at least two times greater than the first density. The nozzle further includes a plasma exit orifice disposed in the tip section of the forward portion. | 01-23-2014 |
| 20140021173 | TORCHES AND METHODS OF USING THEM - Certain embodiments described herein are directed to a torch that includes a suitable amount of a refractory material. In some embodiments, the torch can include one or more non-refractory materials in combination with a refractory material. In some embodiments, the torch can comprise a refractory material and an optically transparent window. In other embodiments, the torch can comprise a material comprising a melting point higher than the melting point of quartz. | 01-23-2014 |
| 20140034618 | Asymmetric Consumables for a Plasma Arc Torch - A consumable set is provided that is usable in a plasma arc torch to direct a plasma arc to a processing surface of a workpiece. The consumable set includes a nozzle having: 1) a nozzle body defining a longitudinal axis extending therethrough, and 2) a nozzle exit orifice, disposed in the nozzle body, for constricting the plasma arc. The nozzle exit orifice defines an exit orifice axis oriented at a non-zero angle relative to the longitudinal axis. The consumable set can also include an alignment surface generally parallel to the exit orifice axis. The alignment surface is dimensioned to align the exit orifice such that the plasma arc impinges orthogonally on the processing surface. | 02-06-2014 |
| 20140042130 | Plasma Treatment of Substrates - A process for plasma treating a substrate comprises applying a radio frequency high voltage to at least one electrode positioned within a dielectric housing having an inlet and an outlet while causing a process gas, usually comprising helium, to flow from the inlet past the electrode to the outlet, thereby generating a non-equilibrium atmospheric pressure plasma. An atomised or gaseous surface treatment agent is incorporated in the non-equilibrium atmospheric pressure plasma. The substrate is positioned adjacent to the plasma outlet so that the surface is in contact with the plasma and is moved relative to the plasma outlet. The velocity of the process gas flowing past the electrode is less than 100 m/s. Process gas is also injected into the dielectric housing at a velocity greater than 100 m/s. The volume ratio of process gas injected at a velocity greater than 100 m/s to process gas flowing past the electrode at less than 100 m/s is from 1:20 to 5:1. | 02-13-2014 |
| 20140151343 | System, Method and Apparatus for Recovering Mining Fluids from Mining Byproducts - A system, method and apparatus for recovering mining fluids from mining byproducts uses a plasma arc torch and a screw feed unit. The plasma arc torch includes a cylindrical vessel, a first tangential inlet/outlet connected to or proximate to a first end, a second tangential inlet/outlet connected to or proximate to a second end, an electrode housing connected to the first end such that a first electrode is (a) aligned with a longitudinal axis of the cylindrical vessel, and (b) extends into the cylindrical vessel, and a hollow electrode nozzle is connected to the second end such that the hollow electrode nozzle is aligned with the longitudinal axis, the hollow electrode nozzle is partially disposed within the cylindrical vessel and outside the cylindrical vessel. The screw feed unit has an inlet and an outlet, the outlet aligned with the centerline and proximate to the hollow electrode nozzle. | 06-05-2014 |
| 20140209573 | SYSTEM, METHOD AND APPARATUS FOR AN INDUCTIVELY COUPLED PLASMA ARC WHIRL FILTER PRESS - A plasma treatment system includes a plasma arc torch, a tee attached to a hollow electrode nozzle of the plasma arc torch, and a screw feed unit or a ram feed unit having an inlet and an outlet attached to the tee. The plasma arc torch includes a cylindrical vessel having a first end and a second end, a first tangential inlet/outlet connected to or proximate to the first end, a second tangential inlet/outlet connected to or proximate to the second end, an electrode housing connected to the first end of the cylindrical vessel such that a first electrode is (a) aligned with a longitudinal axis of the cylindrical vessel, and (b) extends into the cylindrical vessel, and a hollow electrode nozzle connected to the second end of the cylindrical vessel such that a centerline of the hollow electrode nozzle is aligned with the longitudinal axis of the cylindrical vessel. | 07-31-2014 |
| 20140217069 | 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. | 08-07-2014 |
| 20140284312 | Consumables for a Plasma Arc Torch for Bevel Cutting - A consumable set is provided that is usable in a plasma arc torch to direct a plasma arc to a processing surface of a workpiece. The consumable set comprises a nozzle and an alignment surface. The nozzle includes: 1) a nozzle body defining a longitudinal axis extending therethrough, and 2) a nozzle exit orifice disposed in the nozzle body for constricting the plasma arc. The nozzle exit orifice defines an exit orifice axis oriented at a non-zero bevel angle relative to the longitudinal axis. The alignment surface is generally parallel to the longitudinal axis and substantially planar. The alignment surface is dimensioned to orient the nozzle exit orifice such that the plasma arc impinges on the processing surface of the workpiece at the bevel angle while the plasma arc torch is substantially perpendicular to the processing surface. | 09-25-2014 |
| 20150014285 | 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. Each castellation has a castellation width defined by the distance between the sidewalls of that castellation. At least one slot is disposed between two castellations. Each slot has a slot width defined by a distance between the sidewalls of its adjacent castellations. The slot width can be at least twice the castellation width. Each slot also has a slot floor and an exterior shape. The slot floor can have slope that tapers toward the first end of the body in an outward radial direction and the exterior shape of the slot can have a generally V-shaped or U-shaped contour. | 01-15-2015 |
| 20150021300 | APPARATUS AND METHOD FOR SECURING A PLASMA TORCH ELECTRODE - An electrode for a plasma arc torch includes a generally cylindrical elongated body formed of an electrically conductive material. The elongated body includes a proximal end that connects to a power supply and a distal end that receives an emissive element. The electrode can include a flange that is disposed about a surface relative to the distal end of the elongated body, extends radially from the surface of the elongated body, and is utilized to establish a uniform gas flow distribution of a plasma gas flow about the distal end of the elongated body. The electrode can include a contact element that is in electrical communication with the proximal end of the electrode. The contact element includes seating portion that has an outer width that is greater than the outermost diameter of the electrode body and is configured to position the contact element within the plasma arc torch. | 01-22-2015 |
| 20150102019 | PLASMA TORCH NOZZLE - The present invention is to solve the problems described above and to provide the plasma torch nozzle of graphite material coupled to the front electrode of the plasma torch by bolts. | 04-16-2015 |
| 20150129562 | PLASMA ARC TORCH AND METHOD FOR ASSEMBLING AND DISASSEMBLING A PLASMA ARC TORCH - A front end assembly for a plasma torch and methods for assembling and disassembling a torch wherein a plurality of front end parts form a unit that is removable from, and installable in, the torch in a single operation without a special fixture. The front end assembly includes a nozzle retaining cup body connectable to a body of the torch, and a forward end connectable to a shield retainer. A nozzle retaining cup insert fits into the nozzle retaining cup body. The shield retainer has an inner surface for retaining the shield. A nozzle is received within the nozzle retaining cup insert. A stop on the nozzle engages the nozzle retaining cup insert when the front end assembly is removed from the torch so the nozzle does not remain in the torch. The shield engages an insulator, which engages the nozzle, to limit forward axial movement of the nozzle. | 05-14-2015 |
| 20150334816 | AIR COOLED PLASMA TORCH AND COMPONENTS THEREOF - Embodiments of the present invention are directed to an air cooled, retract-start plasma cutting torch having improved performance. The torch comprises any one, or a combination of an improved nozzle, electrode, shield cap and swirl ring, where these components have improved geometries and physical properties which optimize plasma jet performance during cutting. | 11-19-2015 |
| 20160037618 | Smooth Radius Nozzle for use in a Plasma Cutting device - A nozzle for use with a plasma arc torch is provided. The nozzle has a nozzle body having a length that extends from a proximal end to a distal end, a central bore disposed within the nozzle body along a central axis having a feed orifice at the proximal end of the nozzle body, and a discharge orifice at the distal end of the nozzle body. The central bore has a series of internal sections that transition with one or more radial edges between the feed orifice and the discharge orifice. The series of internal sections have a first section beginning at the feed orifice transitioning to a converging section transitioning at a throat to a diverging section ending at the discharge orifice. The length of the converging section is longer than a length of the diverging section. A Venturi effect is created by the converging and diverging sections of the nozzle. | 02-04-2016 |
| 20160050740 | Cost Effective Cartridge for a Plasma Arc Torch - A cartridge for an air-cooled plasma arc torch is provided. The cartridge includes a swirl ring having a molded thermoplastic elongated body with a distal end, a proximal end, and a hollow portion configured to receive an electrode. The swirl ring also has a plurality of gas flow openings defined by the distal end of the elongated body and configured to impart a swirling motion to a plasma gas flow for the plasma arc torch. The swirl ring further includes a nozzle retention feature on a surface of the elongated body at the distal end for retaining a nozzle to the elongated body. The cartridge further includes a cap affixed to the proximal end of the elongated body of the swirl ring for substantially closing the proximal end of the elongated body. | 02-18-2016 |
| 20160107260 | WELDING NOZZLE OF A WELDING TORCH - A nozzle for a welding torch includes a body portion defining an internal bore, a discharge orifice, and an internal radius on the internal bore proximate to the discharge opening. | 04-21-2016 |
| 20160165712 | Cost Effective Cartridge for a Plasma Arc Torch - A crown for a plasma arc torch is provided. The crown includes a body defining a proximal and a distal end. The body includes an electrically conductive material. The crown also includes at least one raised feature at the proximal end of the body. The raised feature is adapted to activate a consumable sensor inside of the plasma arc torch. The crown further includes a biasing surface at the proximal end of the body for physically contacting a resilient element. | 06-09-2016 |
