Cutting Patents (Class 219/121.39)
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Patent number: 8541711Abstract: A method for cutting an internal feature in a workpiece using a plasma cutting system can include cutting in a first zone using at least one cutting parameter from a first cutting parameter set, which can include a first cutting current and/or a first speed. The method can include cutting in a second zone using at least one cutting parameter from a second cutting parameter set that can be different from the first cutting parameter set. The second cutting parameter set can include a second cutting current and/or a second speed. The method can also include cutting in a third zone using at least one cutting parameter from a third cutting parameter set, which can be different from the first cutting parameter set or the second cutting parameter set. The third cutting parameter set can include a third cutting current and/or a third speed.Type: GrantFiled: May 15, 2009Date of Patent: September 24, 2013Assignee: Hypertherm, Inc.Inventors: Jon W. Lindsay, Guy T. Best, Peter V. Brahan, Gregory S. Wilson
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Patent number: 8541710Abstract: A method and apparatus for controlling a gas supply to a plasma arc torch uses a proportional control solenoid valve positioned adjacent the torch to manipulate the gas flow to the torch, thereby extending electrode life during arc transfer and shutdown. Swirl ring design can be simplified and gas supply and distribution systems become less complicated. The invention also allows manipulation of shield gas flow to reduce divot formation when making interior cuts. The system can be controlled with a digital signal processor utilizing a feedback loop from a sensor.Type: GrantFiled: February 29, 2008Date of Patent: September 24, 2013Assignee: Hypertherm, Inc.Inventors: Aaron D. Brandt, Christopher S. Passage, Shane M. Selmer, Girish R. Kamath, Guy T. Best, Stephen M. Liebold, Jon W. Lindsay, Zheng Duan
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Publication number: 20130228556Abstract: A portable apparatus, particularly for plasma welding or cutting, comprising a box-like body which contains an electronic power board, a flexible torch holder hose extending from the box-like body and terminating in the torch, for plasma welding or cutting. The box-like body has an accommodation receptacle for the torch and for at least part of the torch holder hose, which is closed by a corresponding cover.Type: ApplicationFiled: November 19, 2012Publication date: September 5, 2013Applicant: SEGALA BRUNO S.R.L.Inventor: Bruno SEGALA
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Patent number: 8525069Abstract: An improved electrode for use in a plasma arc torch. The electrode includes an electrode body, a cavity in a front face at a first end of the electrode body, and an insert disposed in the cavity. The first end of the electrode body is formed of high purity copper containing at least 99.81% copper. The insert has a first end and a second end and is formed of a high emissivity material. A diameter of the first end of the insert is less than a diameter of a second end of the insert. An electrode is compressed to retain the insert using radial compression. The invention also includes a method for forming the electrode, and a method of operation of an electrode in a plasma torch.Type: GrantFiled: May 18, 2012Date of Patent: September 3, 2013Assignee: Hypertherm, Inc.Inventors: Jonathan P. Mather, Peter J. Twarog
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Patent number: 8525067Abstract: A process for the jet cutting of arcuate openings in a metal workpiece such as steel, by means of creating a jet along a predetermined axis, applying the jet to the workpiece, with the axis of the jet offset from the perpendicular, and rotating the jet around to describe the arc desired while maintaining the non perpendicular axis and terminating the cutting path just prior to completion of the opening.Type: GrantFiled: May 20, 2011Date of Patent: September 3, 2013Inventors: Robin Muscat-Tyler, Paul J. Kwiatkowski
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Publication number: 20130220980Abstract: A system and method for automatically controlling gas pressure for a plasma cutter includes a plasma torch, a gas supply system to provide a pressurized gas to the plasma torch, and a proportional valve configured to regulate the pressurized gas. The proportional valve includes a body, a valve seat positioned therein and defining a valve orifice, and a plunger having a mating surface on one end that mates with the valve seat and the orifice and a pressure receiving surface on an opposite end. The proportional valve also includes an inlet to receive the pressurized gas and distribute the pressurized gas to the valve orifice and the pressure receiving surface of the plunger, an electrical solenoid having a chamber to electro-magnetically translate the plunger therein, and a bias urging the plunger toward the valve orifice in conjunction with the pressurized gas when electrical power is reduced to the electrical solenoid.Type: ApplicationFiled: February 15, 2013Publication date: August 29, 2013Applicant: ILLINOIS TOOL WORKS INC.Inventor: ILLINOIS TOOL WORKS INC.
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Patent number: 8513564Abstract: A plasma welding torch that can be reduced in size more than in conventional cases. When an inert gas G such as argon gas is supplied to an outer circumferential space around a non-consumable electrode 13, a portion of the inert gas G is used as plasma gas GP that forms a plasma arc PA between the non-consumable electrode 13 and a base material 2 via a plasma orifice 51. A plasma welding torch 1 moves, maintaining this state, in the direction of the arrow shown in FIG. 4. Meanwhile, a portion of the inert gas G supplied to a gas flowing part 21 is not used as the plasma gas GP but is used as shielding gas GS and is ejected onto the base material 2 ahead in the welding direction via a shielding orifice 52. The welding on the base material 2 is performed in a state where the plasma arc PA and the base material 2 are shielded from the air by this shielding gas.Type: GrantFiled: February 14, 2011Date of Patent: August 20, 2013Assignee: Honda Motor Co., Ltd.Inventors: Katsuya Matsumoto, Jun Kitagawa, Keishi Setoda, Yusuke Muramatsu
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Publication number: 20130206735Abstract: A plasma cutting or welding system includes a power input. The power input is configured to be coupled to a plurality of multipronged input plugs. Each of the multipronged input plugs corresponds to an input voltage. The power supply also includes a user input device for selecting an operating current. The user input device is subdivided into a plurality of current ranges. Each of the current ranges includes an iconic representation of at least one multipronged input plug.Type: ApplicationFiled: February 14, 2012Publication date: August 15, 2013Applicant: Illinois Tool Works Inc.Inventors: Alan A. Manthe, David P. Marcusen, Steven D. Hidden, Ashok Darisipudi, Brian Mitchell Brown, John M. Huhn
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Publication number: 20130186870Abstract: A method of operating a plasma arc torch system includes placing a work piece to be cut on a table of the plasma arc torch system, wherein at least a portion of the work piece has a planer surface facing away from the table. A plasma arc torch is positioned adjacent the planer surface of the work piece using a positioning apparatus, wherein the positioning apparatus has at least five degrees of freedom about which it can move the plasma arc torch relative the work piece for cutting the work piece on the table. The method further includes angling the torch relative the planer surface of the work piece such that the torch is held at an angle of between about 1 and about 4 degrees from perpendicular with the planer surface to back burn a produced kerf such that a kerf edge is perpendicular relative the planer surface of the work piece. Additionally, the planer surface of the work piece is calculated by contacting the work piece with the torch at least three times.Type: ApplicationFiled: March 12, 2013Publication date: July 25, 2013Applicant: KIFFER INDUSTRIES INC.Inventor: Kiffer Industries Inc.
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Patent number: 8466393Abstract: A device for tempering a test fluid includes an electric heating device for heating the test fluid, a sensor for detecting a measuring value associated with the temperature of the test fluid, and an electronic control device for controlling the heating device in dependence upon the measuring value. The heating device includes an induction generator, connected to a power supply, for the inductive heating of a heating element which is connected, in a heat-conducting manner, to the test fluid and/or to a container for the test fluid, and the sensor is a sensor measuring in a contact-less manner.Type: GrantFiled: November 23, 2009Date of Patent: June 18, 2013Inventor: Thomas Kollewe
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Patent number: 8461475Abstract: A system for the thermal processing of workpieces. In this respect, workpieces can be processed by a plasma jet or by a laser beam. The thermal processing of workpieces is done more flexibly and also less expensive in this respect. A laser processing head or a plasma processing head can be connected by a single shaft element.Type: GrantFiled: October 23, 2009Date of Patent: June 11, 2013Assignee: Kjellberg Finsterwalde Plasma und Maschinen GmbHInventors: Volker Krink, Friedrich-Wilhelm Bach, Frank Laurisch, Thomas Ruemenapp
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Patent number: 8455786Abstract: An electrode head of the plasma cutting machine is provided. The electrode head comprises a sheath, a bearing means, an electrode core, a first brazing means and a second brazing means. The sheath has a first end and a second end. A first flange extends radially inward from the first end. The bearing means has a third end and a fourth end. A second flange extending from the third end is fixed to the first flange of the sheath via the first brazing means. A protrusion portion is provided axially from the interior of the fourth end. A recess portion is extending from the third end into the interior of the protrusion portion. The electrode core is fixed in the recess portion via the second brazing means.Type: GrantFiled: January 23, 2012Date of Patent: June 4, 2013Inventor: Wen-Yi Fang
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Patent number: 8455785Abstract: The invention relates to a water-vapor plasma torch (7) for cutting a workpiece (21), comprising a feed line (8) for a liquid (9), a heating device (22), and an evaporator (23) for forming a gas (20) from the liquid (9), a cathode (24) detachably connected to a movably mounted piston rod (25), and a nozzle (26) with an outlet opening (27) for the gas (20), as well as to a wear-detection and process-control method to be used with such a water-vapor plasma torch (7). To create such a water-vapor plasma torch (7) including wearing-part detection, at least one temperature sensor (28) is arranged within the piston rod (25), said temperature sensor being connected to a control unit (4), so that a wear of the cathode (24) and the nozzle (26) can be concluded from the temperature values detected, and that the control of the water-vapor plasma cutting process is influenceable.Type: GrantFiled: September 14, 2007Date of Patent: June 4, 2013Assignee: Fronius International GmbHInventors: Walter Mitterhumer, Heribert Pauser
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Patent number: 8450636Abstract: The embodiments disclosed herein provide a device suitable for assisting cutting and/or marking metal, such as sheet metal, comprising a template member, and optionally, an attachment component such as a magnetic component. The template member may further comprises a solid substrate material or a solid component and an outer edge and/or a window component. The device is configured so that the magnetic component allows the template member to be affixed to a metal object so that the outer edge and/or the window component may be used as a guide for cutting the metal, and allows the component to be removed from the metal when it is no longer needed for cutting.Type: GrantFiled: December 3, 2009Date of Patent: May 28, 2013Inventor: Donald L. Goodman, Jr.
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Patent number: 8436270Abstract: An automated method for cutting a plurality of hole features using a plasma arc torch system can be implemented on a computer numerical controller. The automated method can include the steps of: a) cutting a lead-in for a hole feature using a lead-in command speed based on a diameter of that hole feature and b) cutting a perimeter for the hole feature using a perimeter command speed greater than the corresponding lead-in command speed for the hole feature. The automated method can also include the step c) of repeating steps a) and b) for each additional hole feature having a same diameter or a different diameter.Type: GrantFiled: September 30, 2011Date of Patent: May 7, 2013Assignee: Hypertherm, Inc.Inventors: Jon W. Lindsay, Guy T. Best, Peter V. Brahan, Gregory S. Wilson
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Publication number: 20130098884Abstract: 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.Type: ApplicationFiled: December 6, 2012Publication date: April 25, 2013Applicant: HYPERTHERM INCORPORATEDInventor: Hypertherm Incorporated
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Patent number: 8404993Abstract: The invention relates to a device for machining, particularly for cutting, of electrically conductive workpieces using a machining tool (10), which can be displaced back and forth toward and away from a workpiece by means of a drive unit and which comprises an electrically insulated, metallic tool head (12) forming a first capacitance (C1) with the workpiece, and comprising an analysis unit (14) for analyzing a characteristic value dependent on the first capacitance (C1). The invention provides that a metallic connecting element (18) is attached to the tool head (12), the element being connected to the analysis unit (14) and forming a second capacitance (C2) with the tool head (12).Type: GrantFiled: October 17, 2007Date of Patent: March 26, 2013Assignee: IHT Automation GmbH & Co. KGInventor: Bruno Heck
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Patent number: 8399796Abstract: A fence system capable of serving as a guide rail assembly for a cutting tool is provided. The system comprises a main beam with integrated or removable guide inserts interlocked by mechanical means that provide a spacing system for various handheld plasma torches. The inserts are customizable to fit the profile of various torch bodies and provide a precise preset gap for optimized cutting. The main beam can also incorporate storage of consumable parts for the torch as well as additional guide inserts.Type: GrantFiled: April 1, 2011Date of Patent: March 19, 2013Inventor: Shelby Starks
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Patent number: 8399797Abstract: A system is provided that includes a torch power unit that includes a compressor and a controller configured to adjust output of the compressor in response to feedback comprising compressor output, or altitude, or atmospheric pressure, or a combination thereof. A method is provided that includes adjusting operational parameters of a torch power unit to account for environmental conditions affecting performance of the torch power unit. A method of manufacturing a portable cutting torch system is also provided. Another system is provided that includes a plasma cutting circuit, a compressor, a motor coupled to the compressor, an interface, and an environmental feedback controller.Type: GrantFiled: May 7, 2008Date of Patent: March 19, 2013Assignee: Illinois Tool Works Inc.Inventors: Troy A. Sommerfeld, Nathan Gerald Leiteritz
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Patent number: 8395074Abstract: A plasma arc system includes a single-gas, gas-cooled plasma arc torch and a torch control unit. The torch control unit includes a housing and a user input device on the housing for receiving an indication of a desired cutting or marking function and for providing a responsive signal. A single gas supply both to the housing, and from the housing to the torch, is provided for cutting or marking. A current control device is located within the housing for controlling current output to the torch for either cutting or marking. A gas control device is located within the housing for controlling gas output to the torch for either cutting or marking. A controller is located within the housing for receiving the signal from the user input device indicating the desired cutting or marking function, and for sending a responsive signal to the current control and gas control devices depending on the desired cutting or marking function so that the torch operates accordingly. A related control until is disclosed.Type: GrantFiled: December 3, 2010Date of Patent: March 12, 2013Assignee: Kaliburn, Inc.Inventors: Jackie L. Winn, Jesse M. Wilson, Charles T. Boyd
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Patent number: 8395077Abstract: 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.Type: GrantFiled: November 5, 2010Date of Patent: March 12, 2013Assignee: Hypertherm, Inc.Inventors: Zheng Duan, Stephen M. Liebold, Aaron D. Brandt
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Patent number: 8378250Abstract: A bevel head attachment comprises a rotation axis normal to a cutting plane and a rotary assembly having cylindrical inner and outer barrels and a bevel arm. The bevel arm carries a tilt arm having a torch clamp. The tilt arm rotates about a tilt axis forming an acute angle with the rotation axis. A rotation drive motor operable to rotate the bevel arm about the rotation axis and a tilt drive motor operable to rotate the tilt arm about the tilt axis are located remotely from the torch clamp. The tilt drive motor is connected to the tilt arm through the outer barrel. The motors are commanded according to only two transformation equations to rotate a torch held by the tilt arm about the rotation and tilt axes to achieve planer tilt adjustment. The lightweight attachment provides unlimited rotation, and locates sensitive electronic elements away from the torch.Type: GrantFiled: November 1, 2010Date of Patent: February 19, 2013Assignee: Koike Aronson, Inc.Inventors: Robert T. Flaig, Garick J. Tischler
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Patent number: 8378249Abstract: A system and method for automatically controlling gas pressure for a plasma cutter includes a plasma torch, a gas supply system to provide a pressurized gas to the plasma torch, and a proportional valve configured to regulate the pressurized gas. The proportional valve includes a body, a valve seat positioned therein and defining a valve orifice, and a plunger having a mating surface on one end that mates with the valve seat and the orifice and a pressure receiving surface on an opposite end. The proportional valve also includes an inlet to receive the pressurized gas and distribute the pressurized gas to the valve orifice and the pressure receiving surface of the plunger, an electrical solenoid having a chamber to electro-magnetically translate the plunger therein, and a bias urging the plunger toward the valve orifice in conjunction with the pressurized gas when electrical power is reduced to the electrical solenoid.Type: GrantFiled: August 14, 2008Date of Patent: February 19, 2013Assignee: Illinois Tool Works Inc.Inventors: Anthony V. Salsich, David P. Marcusen, Nick William Buettner, Brian J. Bornemann
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Patent number: 8373085Abstract: Plasma cutter and welder units are provided for fabricating a pipe. The plasma cutter and welder unit include a support structure having a carriage rotatably supported thereon. A plasma cutter nozzle and a weld nozzle are mounted to the carriage. A drive mechanism adjusts positioning of the plasma cutter and weld nozzles through varying control by a controller during operation. Additionally, a bearing support is provided for cradling the pipe during fabrication. The bearing support includes a plurality of bearing plates. A wedge structure is secured to each of the bearing plates and to a fixture base to form a nest for receiving the pipe. An isolation pad is disposed between the wedge structure and the fixture base.Type: GrantFiled: May 19, 2010Date of Patent: February 12, 2013Assignee: The Viking CorporationInventors: Kenneth G. Vos, Thomas E. Winebrenner, Ryan H. Hansen, William J. Evans, IV
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Patent number: 8373084Abstract: Systems and methods are provided for a torch power system having a high power density. In one embodiment, a system is provided that includes a torch power unit having a compressor and power electronics that include one or more power converters, wherein the torch power unit has a power output density of at least 2 watts per cubic inch, 80 watts per pound, or a combination thereof. A power conversion assembly for a torch power unit is provided that includes a single circuit board, a torch power converter mounted on the single circuit board, and a non-torch power converter mounted on the single circuit board. An electrical torch system is also provided that includes a circuit board and a power converter coupled to the circuit board, wherein the power converter includes a planar transformer, a foil wound transformer, or a combination thereof.Type: GrantFiled: December 19, 2007Date of Patent: February 12, 2013Assignee: Illinois Tool Works Inc.Inventor: Anthony Van Bergen Salsich
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Patent number: 8357872Abstract: A pipe processing apparatus containing a gripping mechanism with bracing rollers, further a drive wheel which is rotationally supported on the pipe processing apparatus and axially parallel to the bracing rollers and is positioned/positionable by its tread at such a site where said tread can make contact with the pipe held by the bracing rollers and can rotate said pipe by static friction; and a drive system to actuate the drive wheel.Type: GrantFiled: May 14, 2009Date of Patent: January 22, 2013Assignee: Illinois Tool Works Inc.Inventor: Andreas Lier
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Patent number: 8354609Abstract: A method and apparatus for a plasma torch system having a plasma torch tip configuration that includes a nozzle, an electrode, and a control unit for controlling a composition of the shield gas flow, such that while cutting the contour the shield gas flow comprises a first shield gas composition and while cutting the hole the shield gas flow comprises a second shield gas composition.Type: GrantFiled: December 22, 2008Date of Patent: January 15, 2013Assignee: Hypertherm, Inc.Inventors: Jon W. Lindsay, Guy T. Best
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Patent number: 8354610Abstract: A method and apparatus for a plasma torch system having a plasma torch tip configuration that includes a nozzle, an electrode, and a control unit for controlling a composition of the shield gas flow, such that while cutting the contour the shield gas flow comprises a first shield gas composition and while cutting the hole the shield gas flow comprises a second shield gas composition.Type: GrantFiled: September 29, 2011Date of Patent: January 15, 2013Assignee: Hypertherm, Inc.Inventors: Jon W. Lindsay, Guy T. Best
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Patent number: 8350182Abstract: 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.Type: GrantFiled: March 10, 2008Date of Patent: January 8, 2013Assignee: Hypertherm, Inc.Inventors: E. Michael Shipulski, Nicholas A. Sanders
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Patent number: 8338739Abstract: An automated method for cutting a plurality of hole features using a plasma arc torch system can be implemented on a computer numerical controller. The automated method can include the steps of: a) cutting a lead-in for a hole feature using a lead-in command speed based on a diameter of that hole feature and b) cutting a perimeter for the hole feature using a perimeter command speed greater than the corresponding lead-in command speed for the hole feature. The automated method can also include the step c) of repeating steps a) and b) for each additional hole feature having a same diameter or a different diameter.Type: GrantFiled: September 11, 2009Date of Patent: December 25, 2012Assignee: Hypertherm, Inc.Inventors: Jon W. Lindsay, Guy T. Best, Peter V. Brahan, Gregory S. Wilson
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Publication number: 20120305534Abstract: An industrial machine assembly includes an industrial machine and a handle. The industrial machine includes an upper wall and a side wall. The side wall and upper wall cooperate to define a corner. The handle includes a grasping portion, a first flange, and a second flange. The handle is configured for attachment to the industrial machine in one of a first position and a second position. When the handle is in the first position, the first and second flanges straddle the corner such that the first flange is adjacent to the upper wall and the second flange is adjacent to the side wall. When the handle is in the second position, the first and second flanges straddle the corner such that the first flange is adjacent to the side wall and the second flange is adjacent to the upper wall.Type: ApplicationFiled: August 20, 2012Publication date: December 6, 2012Inventors: Thomas David Williams, Bruce John Chantry
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Publication number: 20120298633Abstract: A method of controlling a position of a plasma arc torch relative to a workpiece for a bevel cutting operation is provided that includes: calculating a bevel pivot length, which is a function of a torch height; piercing the workpiece with the plasma arc torch; rotating the plasma arc torch about its center of rotation to a desired cutting angle; translating the plasma arc torch along at least one of X, Y, and Z axes to maintain a torch center point; and translating the plasma arc torch along at least one of the X, Y and Z axes to achieve a resultant displacement along a longitudinal axis of the plasma arc torch to maintain a desired torch height.Type: ApplicationFiled: November 2, 2011Publication date: November 29, 2012Applicant: Retro Systems, LLC.Inventors: Jeffrey Lawrence Riemann, Paul L. Riemann, Nicholas Lee Riemann
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Patent number: 8304685Abstract: The present invention includes a plasma cutter having an input configured to receive welding power and a converter arranged according to a ?uk topology and configured to automatically convert the welding power to plasma-cutting power.Type: GrantFiled: April 14, 2005Date of Patent: November 6, 2012Assignee: Illinois Tool Works Inc.Inventors: Thomas A. Bunker, Joseph C. Schneider, James F. Ulrich
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Patent number: 8288677Abstract: The invention relates to a coupling device (24) used for producing a flow path between the tank (6) of a water vapor cutting device (1) and a liquid-filled cartridge (25), wherein said coupling device (24) comprises a housing (29) provided with a receiving area (30) which is formed therein, used for mounting the cartridge (25) on said housing (29) and which comprises a channel (39) provided with an input orifice (40) fluidically connectable to the cartridge (25) and to an output opening (41) which is also fluidically connectable to an external surrounding area, for example to the tank (6).Type: GrantFiled: September 6, 2006Date of Patent: October 16, 2012Assignee: Fronius International GmbHInventors: Ernst Aunitzky, Wolfgang Haberler, Roland Ortner, Heribert Pauser, Max Stöger, Martin Trausner, Andreas Wiesinger
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Publication number: 20120234802Abstract: A technique for machining work pieces with a laser apparatus and an electric arc apparatus includes generating a plasma gas jet with the electric arc apparatus, generating a laser beam with the laser apparatus, generating an electric arc with the electric arc apparatus, guiding the electric arc through the laser beam to a machined spot inside or on a work piece, and cutting the work piece with the electric arc or the plasma gas jet.Type: ApplicationFiled: March 14, 2012Publication date: September 20, 2012Applicant: TRUMPF WERKZEUGMASCHINEN GMBH + CO. KGInventors: Eberhard Wahl, Arnd Szelagowski, Uwe Stute
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Patent number: 8267489Abstract: An industrial machine assembly includes an industrial machine and a handle. The industrial machine includes an upper wall and a side wall. The side wall and upper wall cooperate to define a corner. The handle includes a grasping portion, a first flange, and a second flange. The handle is configured for attachment to the industrial machine in one of a first position and a second position. When the handle is in the first position, the first and second flanges straddle the corner such that the first flange is adjacent to the upper wall and the second flange is adjacent to the side wall. When the handle is in the second position, the first and second flanges straddle the corner such that the first flange is adjacent to the side wall and the second flange is adjacent to the upper wall.Type: GrantFiled: February 10, 2010Date of Patent: September 18, 2012Assignee: Lincoln Global, Inc.Inventors: Thomas David Willams, Bruce John Chantry
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Publication number: 20120187091Abstract: Sample extraction or trimming from an end strip of an elongated formed metal that is coiled in layers within a tensioned metal coil resting on driven rollers. A cut channel is formed across the material width. In some embodiments the cut channel is formed between the rollers and by cutting at an angle relative to the coil outer surface. Coil weight and/or a coil tensioner mechanism inhibits coil relaxation along the cut channel by maintaining tension on wrapped layers against each other when the coil is unbanded for sample extraction. The coil is rotated so that the cut channel clears the rollers laterally. Material downstream the cut is then separated from the coil. After trimming and/or sample extraction the coil maintains rolled tautness for ease of rebanding.Type: ApplicationFiled: December 21, 2011Publication date: July 26, 2012Applicant: SIEMENS INDUSTRY, INC.Inventors: Jennifer Grzyb, Patrick Salpeck, Len Walnoha
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Patent number: 8222561Abstract: 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.Type: GrantFiled: September 4, 2007Date of Patent: July 17, 2012Assignee: Thermal Dynamics CorporationInventors: Thierry R. Renault, Nakhleh A. Hussary, Christopher J. Conway, Darrin H. MacKenzie
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Patent number: 8212174Abstract: A casing is used for being rotatably disposed in a plasma jet system. The casing is rotated around a central axis. The casing comprises a main body and a plasma nozzle. The main body has a first cavity. The plasma nozzle is disposed under the main body and has a second cavity and a straight channel. The second cavity is connected to the first cavity. The straight channel is located at a side of the plasma nozzle opposite to the main body and connected to the second cavity. The straight channel has an extension axis which is substantially parallel with the central axis and separated from the central axis by an interval. Plasma generated by the plasma jet system jets out through the straight channel.Type: GrantFiled: August 7, 2009Date of Patent: July 3, 2012Assignee: Industrial Technology Research InstituteInventors: Chen-Der Tsai, Wen-Tung Hsu, Chin-Jyi Wu, Chih-Wei Chen
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Patent number: 8204618Abstract: A method for setting up a cutting table for an automated high temperature thermal cutting system can include providing a computer-readable product to, for example, a digital signal processor (e.g., CNC). The computer-readable product can include data for at least one part to be cut from a workpiece (e.g., a part program). A user can be prompted to select values from a menu of mandatory operating parameters (e.g., using a graphical user interface) for a shape of the part to be cut from the workpiece. Mandatory operating parameters can include at least one of an operating current, a gas flow, a thickness of the workpiece, or a material of the workpiece.Type: GrantFiled: March 23, 2009Date of Patent: June 19, 2012Assignee: Hypertherm, Inc.Inventors: Roger E. Young, Jr., Peter V. Brahan
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Patent number: 8203096Abstract: 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.Type: GrantFiled: September 10, 2007Date of Patent: June 19, 2012Assignee: Hypertherm, Inc.Inventors: Nicholas A. Sanders, E. Michael Shipulski, Mike Hoffa, Jay L. Jason
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Publication number: 20120145680Abstract: A plasma arc torch both cutting and marking of metal workpieces includes a plasma nozzle having a plasma nozzle orifice through which an electric arc from an electrode and a stream of plasma gas are emitted toward a workpiece, and a liquid-injection shield cup that injects liquid tangentially inwardly to the arc and stream of plasma gas. A power supply is operable to selectively deliver electrical power to the electrode at either a low power level suitable for marking of a workpiece or a high power level suitable for workpiece cutting. The torch may be selectively operated to mark at the low power level, with a plasma marking gas being delivered to the plasma gas passage, or to cut at the high power level, with a plasma cutting gas being delivered to the plasma gas passage, and liquid being delivered to the liquid injection passage for both cutting and marking.Type: ApplicationFiled: December 13, 2010Publication date: June 14, 2012Inventors: Joseph V. Warren, JR., Koustubh Dnyandeo Ashtekar
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Publication number: 20120138583Abstract: A plasma arc system includes a single-gas, gas-cooled plasma arc torch and a torch control unit. The torch control unit includes a housing and a user input device on the housing for receiving an indication of a desired cutting or marking function and for providing a responsive signal. A single gas supply both to the housing, and from the housing to the torch, is provided for cutting or marking. A current control device is located within the housing for controlling current output to the torch for either cutting or marking. A gas control device is located within the housing for controlling gas output to the torch for either cutting or marking. A controller is located within the housing for receiving the signal from the user input device indicating the desired cutting or marking function, and for sending a responsive signal to the current control and gas control devices depending on the desired cutting or marking function so that the torch operates accordingly. A related control until is disclosed.Type: ApplicationFiled: December 3, 2010Publication date: June 7, 2012Applicant: ITT MANUFACTURING ENTERPRISES, INC.Inventors: Jackie L. Winn, Jesse M. Wilson, Charles T. Boyd
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Publication number: 20120103946Abstract: The invention relates to a system for the thermal processing of workpieces. In this respect, workpieces can be processed by a plasma jet or by a laser beam. It is the object of the invention to make possible the thermal processing of workpieces more flexibly and also less expensive in this respect. In the system in accordance with the invention, a laser processing head and a plasma processing head can be connected by a single shaft element.Type: ApplicationFiled: October 23, 2009Publication date: May 3, 2012Inventors: Volker Krink, Friedrich-Wilhelm Bach, Frank Laurisch, Thomas Ruemenapp
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Publication number: 20120103947Abstract: A bevel head attachment comprises a rotation axis normal to a cutting plane and a rotary assembly having cylindrical inner and outer barrels and a bevel arm. The bevel arm carries a tilt arm having a torch clamp. The tilt arm rotates about a tilt axis forming an acute angle with the rotation axis. A rotation drive motor operable to rotate the bevel arm about the rotation axis and a tilt drive motor operable to rotate the tilt arm about the tilt axis are located remotely from the torch clamp. The tilt drive motor is connected to the tilt arm through the outer barrel. The motors are commanded according to only two transformation equations to rotate a torch held by the tilt arm about the rotation and tilt axes to achieve planer tilt adjustment. The lightweight attachment provides unlimited rotation, and locates sensitive electronic elements away from the torch.Type: ApplicationFiled: November 1, 2010Publication date: May 3, 2012Applicant: KOIKE ARONSON, INC.Inventors: Robert T. Flaig, Garick J. Tischler
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Patent number: 8168915Abstract: A cutting torch splatter and glare guard includes a collar that is structured for releasable engagement with a cutting torch. The collar has first and second collar portions that are biased towards a first position for engagement with the cutting torch and movable against the bias towards a second position for disengagement with the cutting torch. A guard plate coupled to the collar and structured to block splatter and cutting debris emanating from a cutting surface. A plurality of shield plates is pivotably attached to the guard plate so as to pivot info and out of an orientation extending generally perpendicular downwardly relative to the guard plate.Type: GrantFiled: April 22, 2009Date of Patent: May 1, 2012Assignee: Messer Cutting Systems Inc.Inventor: Andrew Janecek
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Patent number: 8168916Abstract: In general, the present invention provides a method of piercing a workpiece with a plasma arc torch of the type having a plasma gas flow path for directing a plasma gas through the torch and a secondary gas flow path for directing a secondary gas through the torch. The method comprises directing a flow of shield gas along a distal end portion of the plasma arc torch to deflect metal spatter generated from the piercing, and ramping a current provided to the plasma arc torch along a profile during piercing and controlling current ramp parameters as a function of a thickness of the workpiece and an operating current level, wherein the current ramp parameters comprise a length of time, a ramp rate, a shape factor, and a modulation.Type: GrantFiled: July 28, 2008Date of Patent: May 1, 2012Assignee: Thermal Dynamics CorporationInventors: Nakhleh Hussary, Thierry Renault, Christopher Conway
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Patent number: 8161855Abstract: A cutting machine secures safety of a worker during movement of a head without lowering production efficiency. When moving a cutting head without cutting material to be cut upon a table, a moving truck and the cutting head are moved at a higher speed as compared with when cutting the material to be cut. If, when the moving truck and the cutting head are moving at high speed, a worker who is present upon the table intercepts either of light beams which are located in front of and behind a horizontal beam, then this movement speed is decelerated to a safe low speed, but the task of cutting the material is not interrupted. Subsequently, when the worker approaches the horizontal beam closer, and contacts a wire or a bar in the vicinity of the horizontal beam, movement of the moving truck and the cutting head is forcibly stopped.Type: GrantFiled: February 14, 2007Date of Patent: April 24, 2012Assignee: Komatsu Industries CorporationInventors: Yoshihiro Yamaguchi, Takahiro Iriyama, Satoshi Ohnishi
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Publication number: 20120085737Abstract: An anti-collision device for a plasma vertical cutting gun including a lifting frame of a plasma cutting machine; a connection mechanism; a fixing plate of a cutting gun fixed on the connection mechanism; a concave support plate connected with the lifting frame of the plasma cutting machine; and a proximity switch mounted on the concave support plate. The connection mechanism is mounted between the lifting frame of the plasma cutting machine and the fixing plate of the cutting gun. A contact surface between the connection mechanism and the concave support plate matches. One side of a joint plane between the connection mechanism and the concave support plate is of ferromagnetic materials and the other side is provided with a magnet, thereby attracting each other to realize a magnetic connection. The anti-collision device has comprehensive functions, convenient installation, reasonable structure, and short response time in case of impact.Type: ApplicationFiled: December 15, 2011Publication date: April 12, 2012Inventors: Yanjun XIONG, Wei GAO, Songping YE, Jie DONG, Lin WANG
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Patent number: 8153925Abstract: A system is provided that includes a torch power unit. The torch power unit includes a compressor and a moisture remover coupled to the compressor. A method is provided that includes compressing a gas via compressor and removing moisture from the gas via a moisture remover coupled to the compressor. A method of manufacturing a torch system is also provided. Additionally, a system for a torch power unit is provided that includes a moisture remover.Type: GrantFiled: May 7, 2008Date of Patent: April 10, 2012Assignee: Illinois Tool Works Inc.Inventor: Troy A. Sommerfeld