Cutting Patents (Class 219/121.39)
  • Patent number: 8541711
    Abstract: 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: Grant
    Filed: May 15, 2009
    Date of Patent: September 24, 2013
    Assignee: Hypertherm, Inc.
    Inventors: Jon W. Lindsay, Guy T. Best, Peter V. Brahan, Gregory S. Wilson
  • Patent number: 8541710
    Abstract: 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: Grant
    Filed: February 29, 2008
    Date of Patent: September 24, 2013
    Assignee: 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
  • Publication number: 20130228556
    Abstract: 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: Application
    Filed: November 19, 2012
    Publication date: September 5, 2013
    Applicant: SEGALA BRUNO S.R.L.
    Inventor: Bruno SEGALA
  • Patent number: 8525069
    Abstract: 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: Grant
    Filed: May 18, 2012
    Date of Patent: September 3, 2013
    Assignee: Hypertherm, Inc.
    Inventors: Jonathan P. Mather, Peter J. Twarog
  • Patent number: 8525067
    Abstract: 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: Grant
    Filed: May 20, 2011
    Date of Patent: September 3, 2013
    Inventors: Robin Muscat-Tyler, Paul J. Kwiatkowski
  • Publication number: 20130220980
    Abstract: 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: Application
    Filed: February 15, 2013
    Publication date: August 29, 2013
    Applicant: ILLINOIS TOOL WORKS INC.
    Inventor: ILLINOIS TOOL WORKS INC.
  • Patent number: 8513564
    Abstract: 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: Grant
    Filed: February 14, 2011
    Date of Patent: August 20, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Katsuya Matsumoto, Jun Kitagawa, Keishi Setoda, Yusuke Muramatsu
  • Publication number: 20130206735
    Abstract: 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: Application
    Filed: February 14, 2012
    Publication date: August 15, 2013
    Applicant: Illinois Tool Works Inc.
    Inventors: Alan A. Manthe, David P. Marcusen, Steven D. Hidden, Ashok Darisipudi, Brian Mitchell Brown, John M. Huhn
  • Publication number: 20130186870
    Abstract: 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: Application
    Filed: March 12, 2013
    Publication date: July 25, 2013
    Applicant: KIFFER INDUSTRIES INC.
    Inventor: Kiffer Industries Inc.
  • Patent number: 8466393
    Abstract: 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: Grant
    Filed: November 23, 2009
    Date of Patent: June 18, 2013
    Inventor: Thomas Kollewe
  • Patent number: 8461475
    Abstract: 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: Grant
    Filed: October 23, 2009
    Date of Patent: June 11, 2013
    Assignee: Kjellberg Finsterwalde Plasma und Maschinen GmbH
    Inventors: Volker Krink, Friedrich-Wilhelm Bach, Frank Laurisch, Thomas Ruemenapp
  • Patent number: 8455786
    Abstract: 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: Grant
    Filed: January 23, 2012
    Date of Patent: June 4, 2013
    Inventor: Wen-Yi Fang
  • Patent number: 8455785
    Abstract: 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: Grant
    Filed: September 14, 2007
    Date of Patent: June 4, 2013
    Assignee: Fronius International GmbH
    Inventors: Walter Mitterhumer, Heribert Pauser
  • Patent number: 8450636
    Abstract: 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: Grant
    Filed: December 3, 2009
    Date of Patent: May 28, 2013
    Inventor: Donald L. Goodman, Jr.
  • Patent number: 8436270
    Abstract: 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: Grant
    Filed: September 30, 2011
    Date of Patent: May 7, 2013
    Assignee: Hypertherm, Inc.
    Inventors: Jon W. Lindsay, Guy T. Best, Peter V. Brahan, Gregory S. Wilson
  • Publication number: 20130098884
    Abstract: 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: Application
    Filed: December 6, 2012
    Publication date: April 25, 2013
    Applicant: HYPERTHERM INCORPORATED
    Inventor: Hypertherm Incorporated
  • Patent number: 8404993
    Abstract: 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: Grant
    Filed: October 17, 2007
    Date of Patent: March 26, 2013
    Assignee: IHT Automation GmbH & Co. KG
    Inventor: Bruno Heck
  • Patent number: 8399796
    Abstract: 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: Grant
    Filed: April 1, 2011
    Date of Patent: March 19, 2013
    Inventor: Shelby Starks
  • Patent number: 8399797
    Abstract: 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: Grant
    Filed: May 7, 2008
    Date of Patent: March 19, 2013
    Assignee: Illinois Tool Works Inc.
    Inventors: Troy A. Sommerfeld, Nathan Gerald Leiteritz
  • Patent number: 8395074
    Abstract: 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: Grant
    Filed: December 3, 2010
    Date of Patent: March 12, 2013
    Assignee: Kaliburn, Inc.
    Inventors: Jackie L. Winn, Jesse M. Wilson, Charles T. Boyd
  • Patent number: 8395077
    Abstract: 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: Grant
    Filed: November 5, 2010
    Date of Patent: March 12, 2013
    Assignee: Hypertherm, Inc.
    Inventors: Zheng Duan, Stephen M. Liebold, Aaron D. Brandt
  • Patent number: 8378250
    Abstract: 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: Grant
    Filed: November 1, 2010
    Date of Patent: February 19, 2013
    Assignee: Koike Aronson, Inc.
    Inventors: Robert T. Flaig, Garick J. Tischler
  • Patent number: 8378249
    Abstract: 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: Grant
    Filed: August 14, 2008
    Date of Patent: February 19, 2013
    Assignee: Illinois Tool Works Inc.
    Inventors: Anthony V. Salsich, David P. Marcusen, Nick William Buettner, Brian J. Bornemann
  • Patent number: 8373085
    Abstract: 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: Grant
    Filed: May 19, 2010
    Date of Patent: February 12, 2013
    Assignee: The Viking Corporation
    Inventors: Kenneth G. Vos, Thomas E. Winebrenner, Ryan H. Hansen, William J. Evans, IV
  • Patent number: 8373084
    Abstract: 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: Grant
    Filed: December 19, 2007
    Date of Patent: February 12, 2013
    Assignee: Illinois Tool Works Inc.
    Inventor: Anthony Van Bergen Salsich
  • Patent number: 8357872
    Abstract: 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: Grant
    Filed: May 14, 2009
    Date of Patent: January 22, 2013
    Assignee: Illinois Tool Works Inc.
    Inventor: Andreas Lier
  • Patent number: 8354609
    Abstract: 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: Grant
    Filed: December 22, 2008
    Date of Patent: January 15, 2013
    Assignee: Hypertherm, Inc.
    Inventors: Jon W. Lindsay, Guy T. Best
  • Patent number: 8354610
    Abstract: 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: Grant
    Filed: September 29, 2011
    Date of Patent: January 15, 2013
    Assignee: Hypertherm, Inc.
    Inventors: Jon W. Lindsay, Guy T. Best
  • Patent number: 8350182
    Abstract: 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: Grant
    Filed: March 10, 2008
    Date of Patent: January 8, 2013
    Assignee: Hypertherm, Inc.
    Inventors: E. Michael Shipulski, Nicholas A. Sanders
  • Patent number: 8338739
    Abstract: 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: Grant
    Filed: September 11, 2009
    Date of Patent: December 25, 2012
    Assignee: Hypertherm, Inc.
    Inventors: Jon W. Lindsay, Guy T. Best, Peter V. Brahan, Gregory S. Wilson
  • Publication number: 20120305534
    Abstract: 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: Application
    Filed: August 20, 2012
    Publication date: December 6, 2012
    Inventors: Thomas David Williams, Bruce John Chantry
  • Publication number: 20120298633
    Abstract: 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: Application
    Filed: November 2, 2011
    Publication date: November 29, 2012
    Applicant: Retro Systems, LLC.
    Inventors: Jeffrey Lawrence Riemann, Paul L. Riemann, Nicholas Lee Riemann
  • Patent number: 8304685
    Abstract: 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: Grant
    Filed: April 14, 2005
    Date of Patent: November 6, 2012
    Assignee: Illinois Tool Works Inc.
    Inventors: Thomas A. Bunker, Joseph C. Schneider, James F. Ulrich
  • Patent number: 8288677
    Abstract: 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: Grant
    Filed: September 6, 2006
    Date of Patent: October 16, 2012
    Assignee: Fronius International GmbH
    Inventors: Ernst Aunitzky, Wolfgang Haberler, Roland Ortner, Heribert Pauser, Max Stöger, Martin Trausner, Andreas Wiesinger
  • Publication number: 20120234802
    Abstract: 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: Application
    Filed: March 14, 2012
    Publication date: September 20, 2012
    Applicant: TRUMPF WERKZEUGMASCHINEN GMBH + CO. KG
    Inventors: Eberhard Wahl, Arnd Szelagowski, Uwe Stute
  • Patent number: 8267489
    Abstract: 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: Grant
    Filed: February 10, 2010
    Date of Patent: September 18, 2012
    Assignee: Lincoln Global, Inc.
    Inventors: Thomas David Willams, Bruce John Chantry
  • Publication number: 20120187091
    Abstract: 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: Application
    Filed: December 21, 2011
    Publication date: July 26, 2012
    Applicant: SIEMENS INDUSTRY, INC.
    Inventors: Jennifer Grzyb, Patrick Salpeck, Len Walnoha
  • Patent number: 8222561
    Abstract: 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: Grant
    Filed: September 4, 2007
    Date of Patent: July 17, 2012
    Assignee: Thermal Dynamics Corporation
    Inventors: Thierry R. Renault, Nakhleh A. Hussary, Christopher J. Conway, Darrin H. MacKenzie
  • Patent number: 8212174
    Abstract: 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: Grant
    Filed: August 7, 2009
    Date of Patent: July 3, 2012
    Assignee: Industrial Technology Research Institute
    Inventors: Chen-Der Tsai, Wen-Tung Hsu, Chin-Jyi Wu, Chih-Wei Chen
  • Patent number: 8204618
    Abstract: 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: Grant
    Filed: March 23, 2009
    Date of Patent: June 19, 2012
    Assignee: Hypertherm, Inc.
    Inventors: Roger E. Young, Jr., Peter V. Brahan
  • Patent number: 8203096
    Abstract: 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: Grant
    Filed: September 10, 2007
    Date of Patent: June 19, 2012
    Assignee: Hypertherm, Inc.
    Inventors: Nicholas A. Sanders, E. Michael Shipulski, Mike Hoffa, Jay L. Jason
  • Publication number: 20120145680
    Abstract: 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: Application
    Filed: December 13, 2010
    Publication date: June 14, 2012
    Inventors: Joseph V. Warren, JR., Koustubh Dnyandeo Ashtekar
  • Publication number: 20120138583
    Abstract: 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: Application
    Filed: December 3, 2010
    Publication date: June 7, 2012
    Applicant: ITT MANUFACTURING ENTERPRISES, INC.
    Inventors: Jackie L. Winn, Jesse M. Wilson, Charles T. Boyd
  • Publication number: 20120103946
    Abstract: 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: Application
    Filed: October 23, 2009
    Publication date: May 3, 2012
    Inventors: Volker Krink, Friedrich-Wilhelm Bach, Frank Laurisch, Thomas Ruemenapp
  • Publication number: 20120103947
    Abstract: 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: Application
    Filed: November 1, 2010
    Publication date: May 3, 2012
    Applicant: KOIKE ARONSON, INC.
    Inventors: Robert T. Flaig, Garick J. Tischler
  • Patent number: 8168915
    Abstract: 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: Grant
    Filed: April 22, 2009
    Date of Patent: May 1, 2012
    Assignee: Messer Cutting Systems Inc.
    Inventor: Andrew Janecek
  • Patent number: 8168916
    Abstract: 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: Grant
    Filed: July 28, 2008
    Date of Patent: May 1, 2012
    Assignee: Thermal Dynamics Corporation
    Inventors: Nakhleh Hussary, Thierry Renault, Christopher Conway
  • Patent number: 8161855
    Abstract: 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: Grant
    Filed: February 14, 2007
    Date of Patent: April 24, 2012
    Assignee: Komatsu Industries Corporation
    Inventors: Yoshihiro Yamaguchi, Takahiro Iriyama, Satoshi Ohnishi
  • Publication number: 20120085737
    Abstract: 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: Application
    Filed: December 15, 2011
    Publication date: April 12, 2012
    Inventors: Yanjun XIONG, Wei GAO, Songping YE, Jie DONG, Lin WANG
  • Patent number: 8153925
    Abstract: 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: Grant
    Filed: May 7, 2008
    Date of Patent: April 10, 2012
    Assignee: Illinois Tool Works Inc.
    Inventor: Troy A. Sommerfeld