Patents by Inventor Peter J. Twarog
Peter J. Twarog has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240109147Abstract: The invention features a replaceable cartridge for a plasma arc torch. The cartridge includes a cartridge body having a first section and a second section. The first and second sections are joined at an interface to form a substantially hollow chamber. The interface provides a coupling force that secures the first and second sections together. The cartridge also includes an arc constricting member located in the second section; an electrode included within the substantially hollow chamber; and a contact start spring element affixed to the electrode. The spring element imparts a separating force that biases the electrode toward at least one of the first section or the second section of the body. The separating force has a magnitude that is less than a magnitude of the coupling force.Type: ApplicationFiled: May 31, 2023Publication date: April 4, 2024Inventors: Nicholas A. Sanders, Peter J. Twarog, E. Michael Shipulski, Yu Zhang
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Patent number: 11684994Abstract: The invention features a replaceable cartridge for a plasma arc torch. The cartridge includes a cartridge body having a first section and a second section. The first and second sections are joined at an interface to form a substantially hollow chamber. The interface provides a coupling force that secures the first and second sections together. The cartridge also includes an arc constricting member located in the second section; an electrode included within the substantially hollow chamber; and a contact start spring element affixed to the electrode. The spring element imparts a separating force that biases the electrode toward at least one of the first section or the second section of the body. The separating force has a magnitude that is less than a magnitude of the coupling force.Type: GrantFiled: February 1, 2021Date of Patent: June 27, 2023Assignee: Hypertherm, Inc.Inventors: Nicholas A. Sanders, Peter J. Twarog, E. Michael Shipulski, Yu Zhang
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Patent number: 11278983Abstract: A frame for a replaceable, unitary consumables cartridge configured for installation into a plasma arc torch. The frame includes a hollow body adapted to receive a translatable contact start electrode. The body has an internal surface and an external surface and includes: a substantially cylindrical metallic core; an electrically insulative overmolded plastic casing at least substantially surrounding a circumference of a distal end of the substantially cylindrical metallic core; and a set of flow passages fluidly connecting the external surface of the hollow body and the internal surface of the hollow body, the flow passages offset to impart a swirling fluid flow pattern to a plasma gases passing therethrough.Type: GrantFiled: November 7, 2019Date of Patent: March 22, 2022Assignee: Hypertherm, Inc.Inventors: Nicholas A. Sanders, Peter J. Twarog, E. Michael Shipulski, Yu Zhang
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Publication number: 20210178505Abstract: The invention features a replaceable cartridge for a plasma arc torch. The cartridge includes a cartridge body having a first section and a second section. The first and second sections are joined at an interface to form a substantially hollow chamber. The interface provides a coupling force that secures the first and second sections together. The cartridge also includes an arc constricting member located in the second section; an electrode included within the substantially hollow chamber; and a contact start spring element affixed to the electrode. The spring element imparts a separating force that biases the electrode toward at least one of the first section or the second section of the body. The separating force has a magnitude that is less than a magnitude of the coupling force.Type: ApplicationFiled: February 1, 2021Publication date: June 17, 2021Inventors: Nicholas A. Sanders, Peter J. Twarog, E. Michael Shipulski, Yu Zhang
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Patent number: 10960485Abstract: The invention features a replaceable cartridge for a plasma arc torch. The cartridge includes a cartridge body having a first section and a second section. The first and second sections are joined at an interface to form a substantially hollow chamber. The interface provides a coupling force that secures the first and second sections together. The cartridge also includes an arc constricting member located in the second section; an electrode included within the substantially hollow chamber; and a contact start spring element affixed to the electrode. The spring element imparts a separating force that biases the electrode toward at least one of the first section or the second section of the body. The separating force has a magnitude that is less than a magnitude of the coupling force.Type: GrantFiled: May 4, 2018Date of Patent: March 30, 2021Assignee: Hypertherm, Inc.Inventors: Nicholas A. Sanders, Peter J. Twarog, E. Michael Shipulski, Yu Zhang
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Patent number: 10737347Abstract: A connector component configured for coupling a consumable component to a plasma arc torch is provided. The connector component comprises a body having a proximal end and a distal end disposed along and defining a longitudinal axis. The connector component includes at least two engagement regions disposed radially about the longitudinal axis on a surface of the body. Each engagement region includes at least one engagement feature disposed on the surface of the body. The connector component also includes at least two free regions disposed radially about the longitudinal axis on the surface of the body. Each free region is radially located between a pair of the engagement regions and characterized by an absence of the engagement feature.Type: GrantFiled: February 26, 2018Date of Patent: August 11, 2020Assignee: Hypertherm, Inc.Inventors: Harshawardhan Jogdand, E. Michael Shipulski, David J. Cook, David L. Bouthillier, Zheng Duan, Jesse A. Roberts, Micah Roberts, Stephen M. Dunbar, Peter J. Twarog, Brian J. Currier, Stephen M. Liebold, Brett A. Hansen, Garrett K. Quillia
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Publication number: 20200070275Abstract: A frame for a replaceable, unitary consumables cartridge configured for installation into a plasma arc torch. The frame includes a hollow body adapted to receive a translatable contact start electrode. The body has an internal surface and an external surface and includes: a substantially cylindrical metallic core; an electrically insulative overmolded plastic casing at least substantially surrounding a circumference of a distal end of the substantially cylindrical metallic core; and a set of flow passages fluidly connecting the external surface of the hollow body and the internal surface of the hollow body, the flow passages offset to impart a swirling fluid flow pattern to a plasma gases passing therethrough.Type: ApplicationFiled: November 7, 2019Publication date: March 5, 2020Inventors: Nicholas A. Sanders, Peter J. Twarog, E. Michael Shipulski, Yu Zhang
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Publication number: 20180250765Abstract: The invention features a replaceable cartridge for a plasma arc torch. The cartridge includes a cartridge body having a first section and a second section. The first and second sections are joined at an interface to form a substantially hollow chamber. The interface provides a coupling force that secures the first and second sections together. The cartridge also includes an arc constricting member located in the second section; an electrode included within the substantially hollow chamber; and a contact start spring element affixed to the electrode. The spring element imparts a separating force that biases the electrode toward at least one of the first section or the second section of the body. The separating force has a magnitude that is less than a magnitude of the coupling force.Type: ApplicationFiled: May 4, 2018Publication date: September 6, 2018Inventors: Nicholas A. Sanders, Peter J. Twarog, E. Michael Shipulski, Yu Zhang
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Publication number: 20180178310Abstract: A connector component configured for coupling a consumable component to a plasma arc torch is provided. The connector component comprises a body having a proximal end and a distal end disposed along and defining a longitudinal axis. The connector component includes at least two engagement regions disposed radially about the longitudinal axis on a surface of the body. Each engagement region includes at least one engagement feature disposed on the surface of the body. The connector component also includes at least two free regions disposed radially about the longitudinal axis on the surface of the body. Each free region is radially located between a pair of the engagement regions and characterized by an absence of the engagement feature.Type: ApplicationFiled: February 26, 2018Publication date: June 28, 2018Inventors: Harshawardhan Jogdand, E. Michael Shipulski, David J. Cook, David L. Bouthillier, Zheng Duan, Jesse A. Roberts, Micah Roberts, Stephen M. Dunbar, Peter J. Twarog, Brian J. Currier, Stephen M. Liebold, Brett A. Hansen, Garrett K. Quillia
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Patent number: 9981335Abstract: A replaceable cartridge for a plasma arc torch includes a cartridge body having a first section and a second section. The first and second sections are joined at an interface to form a substantially hollow chamber. The interface provides a coupling force that secures the first and second sections together. The cartridge also includes an arc constricting member located in the second section; an electrode included within the substantially hollow chamber; and a contact start spring element affixed to the electrode. The spring element imparts a separating force that biases the electrode toward at least one of the first section or the second section of the body. The separating force has a magnitude that is less than a magnitude of the coupling force.Type: GrantFiled: May 11, 2015Date of Patent: May 29, 2018Assignee: Hypertherm, Inc.Inventors: Nicholas A. Sanders, Peter J. Twarog, E. Michael Shipulski, Yu Zhang
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Patent number: 9560732Abstract: A nozzle for a plasma arc torch is provided. The nozzle includes a substantially hollow, elongated nozzle body capable of receiving an electrode, the body defining a longitudinal axis, a distal end, and a proximal end. The nozzle also includes a swirl sleeve attachable to an interior surface of the nozzle body, the swirl sleeve configured to impart a swirling motion to a gas introduced to the nozzle. The nozzle additionally includes a nozzle tip connected to the proximal end of the nozzle body, a nozzle shield, and an insulator configured to connect the nozzle tip and the nozzle shield to electrically insulate the nozzle shield and the nozzle tip from one another while transferring thermal energy therebetween.Type: GrantFiled: January 30, 2015Date of Patent: January 31, 2017Assignee: Hypertherm, Inc.Inventors: E. Michael Shipulski, Nicholas A. Sanders, Jay Jason, Jonathan P. Mather, Peter J. Twarog, Clifford Glenn Darrow
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Patent number: 9480138Abstract: In some aspects, a plasma processing torch can include an end portion that receives at least one gas and at least one power input; a first joint coupled to the end portion, the first joint conveying the gas and power through the first joint; a middle portion coupled to the first joint, the middle portion conveying the gas and power through the middle portion; a second joint coupled to the middle portion at an end opposite the first joint, the pivot joint conveying the gas and power through the pivot joint; and a head portion coupled to the second joint, the head portion conveying the gas and power to a torch tip to generate a plasma arc.Type: GrantFiled: December 12, 2013Date of Patent: October 25, 2016Assignee: Hypertherm, Inc.Inventors: Brett Andrew Hansen, Peter J. Twarog
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Publication number: 20150319835Abstract: The invention features a replaceable cartridge for a plasma arc torch. The cartridge includes a cartridge body having a first section and a second section. The first and second sections are joined at an interface to form a substantially hollow chamber. The interface provides a coupling force that secures the first and second sections together. The cartridge also includes an arc constricting member located in the second section; an electrode included within the substantially hollow chamber; and a contact start spring element affixed to the electrode. The spring element imparts a separating force that biases the electrode toward at least one of the first section or the second section of the body. The separating force has a magnitude that is less than a magnitude of the coupling force.Type: ApplicationFiled: May 11, 2015Publication date: November 5, 2015Inventors: Nicholas A. Sanders, Peter J. Twarog, E. Michael Shipulski, Yu Zhang
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Publication number: 20150144603Abstract: A nozzle for a plasma arc torch is provided. The nozzle includes a substantially hollow, elongated nozzle body capable of receiving an electrode, the body defining a longitudinal axis, a distal end, and a proximal end. The nozzle also includes a swirl sleeve attachable to an interior surface of the nozzle body, the swirl sleeve configured to impart a swirling motion to a gas introduced to the nozzle. The nozzle additionally includes a nozzle tip connected to the proximal end of the nozzle body, a nozzle shield, and an insulator configured to connect the nozzle tip and the nozzle shield to electrically insulate the nozzle shield and the nozzle tip from one another while transferring thermal energy therebetween.Type: ApplicationFiled: January 30, 2015Publication date: May 28, 2015Inventors: E. Michael Shipulski, Nicholas A. Sanders, Jay Jason, Jonathon P. Mather, Peter J. Twarog, Clifford Glenn Darrow
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Patent number: 8981253Abstract: A nozzle for a plasma arc cutting torch includes a substantially hollow, elongated body capable of receiving an electrode. The nozzle body defines a longitudinal axis and has a length along the axis from a first end of the nozzle body to a second end of the nozzle body. The nozzle also includes a plasma exit orifice disposed at the first end of the body. The first end of the nozzle body has a width and a ratio of the length of the nozzle body to the width of the nozzle body is greater than about 3.Type: GrantFiled: September 9, 2011Date of Patent: March 17, 2015Assignee: Hypertherm, Inc.Inventors: E. Michael Shipulski, Nicholas A. Sanders, Jay L. Jason, Jonathan Mather, Peter J. Twarog
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Patent number: 8927895Abstract: The technology features an apparatus and a method for sensing the length of a lead that connects to a power source to a thermal processing system such as a plasma torch system. Components disposed in the thermal processing system enable the length of the lead to be sensed. In addition, the time for contact starting a thermal processing system enables determination of the length of the lead.Type: GrantFiled: July 31, 2007Date of Patent: January 6, 2015Assignee: Hypertherm, Inc.Inventors: Stephen Theodore Eickhoff, Peter J. Twarog
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Patent number: 8759709Abstract: 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 23, 2012Date of Patent: June 24, 2014Assignee: Hypertherm, Inc.Inventors: Jonathan P. Mather, Peter J. Twarog
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Publication number: 20140138360Abstract: In some aspects, a plasma processing torch can include an end portion that receives at least one gas and at least one power input; a first joint coupled to the end portion, the first joint conveying the gas and power through the first joint; a middle portion coupled to the first joint, the middle portion conveying the gas and power through the middle portion; a second joint coupled to the middle portion at an end opposite the first joint, the pivot joint conveying the gas and power through the pivot joint; and a head portion coupled to the second joint, the head portion conveying the gas and power to a torch tip to generate a plasma arc.Type: ApplicationFiled: December 12, 2013Publication date: May 22, 2014Inventors: Brett Andrew Hansen, Peter J. Twarog
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Patent number: 8680425Abstract: An electrode for a plasma arc cutting torch which minimizes the deposition of high emissivity material on the nozzle, reduces electrode wear, and improves cut quality. The electrode has a body having a first end, a second end in a spaced relationship relative to the first end, and an outer surface extending from the first end to the second end. The body has an end face disposed at the second end. The electrode also includes at least one passage extending from a first opening in the body to a second opening in the end face. A controller can control the electrode gas flow through the passages as a function of a plasma arc torch parameter. Methods for operating the plasma arc cutting torch with the electrode are disclosed.Type: GrantFiled: April 11, 2008Date of Patent: March 25, 2014Assignee: Hypertherm, Inc.Inventors: Peter J. Twarog, Charles Marcou Hackett, David Jonathan Cook, Bruce Peter Altobelli, David L. Bouthillier
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Patent number: D815596Type: GrantFiled: June 29, 2016Date of Patent: April 17, 2018Assignee: Hypertherm, Inc.Inventors: Brian J. Currier, Peter J. Twarog, Brenda Melius, Girish R. Kamath, Scott A. Leonard, Matthew C. Harris