Patents by Inventor Randy E. Coryell

Randy E. Coryell 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).

  • Circle cutting attachment for torch
    Patent number: 6391248
    Abstract: A circle cutting attachment device for a cutting torch. A torch tip sleeve is attached to the front end of the device and has a cylindrical opening passing therethrough that has a longitudinal axis that is angled forwardly through the body of the torch tip sleeve. A cradle arm adapted to engage the barrel of a cutting torch extends substantially perpendicularly above the rear end of the device. When the tip of a cutting torch is inserted into the cutting torch tip sleeve and the cradle engages the torch barrel, the torch attachment and torch are placed under bending stress which lockingly engages the tip of the torch to the torch tip sleeve and the cradle to the barrel of the torch.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: May 21, 2002
    Inventors: Randy E. Coryell, John J. Jensen
  • Circle cutting attachment for torch
    Patent number: D658219
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: April 24, 2012
    Inventors: Randy E. Coryell, John J. Jensen
  • Circle burner attachment for a plasma torch
    Patent number: D700313
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: February 25, 2014
    Inventors: Randy E. Coryell, John J. Jensen