Patents by Inventor Guy T. Best
Guy T. Best 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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Patent number: 8809728Abstract: 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: September 7, 2007Date of Patent: August 19, 2014Assignee: 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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Patent number: 8710395Abstract: 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: December 18, 2012Date of Patent: April 29, 2014Assignee: 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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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: 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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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: 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: 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: 20120048835Abstract: 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: ApplicationFiled: September 30, 2011Publication date: March 1, 2012Applicant: Hypertherm, Inc.Inventors: Jon W. Lindsay, Guy T. Best, Peter V. Brahan, Gregory S. Wilson
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Publication number: 20120018409Abstract: 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: ApplicationFiled: September 29, 2011Publication date: January 26, 2012Applicant: Hypertherm, Inc.Inventors: Jon W. Lindsay, Guy T. Best
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Publication number: 20100213178Abstract: 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: ApplicationFiled: May 15, 2009Publication date: August 26, 2010Applicant: Hypertherm, Inc.Inventors: Jon W. Lindsay, Guy T. Best, Peter V. Brahan, Gregory S. Wilson
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Publication number: 20100155377Abstract: 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: ApplicationFiled: September 11, 2009Publication date: June 24, 2010Applicant: Hypertherm, Inc.Inventors: Jon W. Lindsay, Guy T. Best, Peter V. Brahan, Gregory S. Wilson
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Publication number: 20100155376Abstract: 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: ApplicationFiled: December 22, 2008Publication date: June 24, 2010Applicant: Hypertherm, Inc.Inventors: Jon W. Lindsay, Guy T. Best
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Publication number: 20080210670Abstract: 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: ApplicationFiled: April 25, 2008Publication date: September 4, 2008Applicant: 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: 20080169272Abstract: 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: ApplicationFiled: February 29, 2008Publication date: July 17, 2008Applicant: 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