Patents by Inventor Shane Selmer

Shane Selmer 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).

  • Method and apparatus for automatic gas control for a plasma arc torch
    Publication number: 20080006614
    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: Application
    Filed: September 7, 2007
    Publication date: January 10, 2008
    Applicant: Hypertherm, Inc.
    Inventors: Aaron Brandt, Christopher Passage, Shane Selmer, Girish Kamath, Guy Best, Stephen Liebold, Jon Lindsay, Zheng Duan
  • Automatic gas control for a plasma arc torch
    Publication number: 20060163220
    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: Application
    Filed: January 27, 2005
    Publication date: July 27, 2006
    Inventors: Aaron Brandt, Christopher Passage, Shane Selmer, Girish Kamath, Guy Best
  • Automatic gas control for a plasma arc torch
    Publication number: 20060163216
    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: Application
    Filed: January 27, 2006
    Publication date: July 27, 2006
    Applicant: Hypertherm, Inc.
    Inventors: Aaron Brandt, Christopher Passage, Shane Selmer, Girish Kamath, Guy Best, Stephen Liebold, Jon Lindsay, Zheng Duan