Patents by Inventor Ross Angus Smith

Ross Angus Smith 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).

  • Thermal torch lead gas delivery methods and related systems and devices
    Patent number: 9427820
    Abstract: In some aspects, methods of initiating a plasma arc in a plasma cutting system can include providing a plasma gas supply lead line extending between a power supply and a plasma arc cutting torch, where the lead line has a first segment proximate to the power supply and a second segment proximate to the torch, and an in-line valve within the lead line between the first segment and the second segment; selectively closing the in-line valve to capture a static volume of gas in the first segment; establishing a decayable volume of gas in the second segment; and initiating the plasma arc when a pressure of the decayable volume reaches a pressure value within a predetermined range.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: August 30, 2016
    Assignee: Hypertherm, Inc.
    Inventors: Jonathan Mather, Liming Chen, Ross Angus Smith
  • Thermal Torch Lead Gas Delivery Methods and Related Systems and Devices
    Publication number: 20140110381
    Abstract: In some aspects, methods of initiating a plasma arc in a plasma cutting system can include providing a plasma gas supply lead line extending between a power supply and a plasma arc cutting torch, where the lead line has a first segment proximate to the power supply and a second segment proximate to the torch, and an in-line valve within the lead line between the first segment and the second segment; selectively closing the in-line valve to capture a static volume of gas in the first segment; establishing a decayable volume of gas in the second segment; and initiating the plasma arc when a pressure of the decayable volume reaches a pressure value within a predetermined range.
    Type: Application
    Filed: May 29, 2013
    Publication date: April 24, 2014
    Inventors: Jonathan Mather, Liming Chen, Ross Angus Smith