Patents by Inventor Howard H. Horn

Howard H. Horn 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).

  • Patent number: 6881921
    Abstract: A plasma arc torch has a threadless electrode-cathode locking assembly, a one-piece tip assembly, and a rotational contact starting mechanism. The cathode and electrode of the locking assembly are configured such that relative rotation of the electrode with respect to the cathode causes the electrode to move in an axial direction relative to the cathode for locking the electrode in fixed axial and rotational position with respect to the cathode. The inner wall of the one-piece tip assembly is configured to receive the forward end of the electrode in a non-contact position. Rotation of the electrode with respect to the tip causes an arcing formation on the electrode to contact an arcing chamber within the cavity. Rotation of the electrode away from the tip generatesa pilot arc in the arcing chamber.
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: April 19, 2005
    Assignee: Thermal Dynamics Corporation
    Inventors: Kevin D. Horner-Richardson, Pearl A. Grant, Roger W. Hewett, Gene V. Hewes, Howard H. Horn
  • Publication number: 20040232118
    Abstract: A plasma arc torch has a threadless electrode-cathode locking assembly, a one-piece tip assembly, and a rotational contact starting mechanism. The cathode and electrode of the locking assembly are configured such that relative rotation of the electrode with respect to the cathode causes the electrode to move in an axial direction relative to the cathode for locking the electrode in fixed axial and rotational position with respect to the cathode. The inner wall of the one-piece tip assembly is configured to receive the forward end of the electrode in a non-contact position. Rotation of the electrode with respect to the tip causes an arcing formation on the electrode to contact an arcing chamber within the cavity. Rotation of the electrode away from the tip generates a pilot arc in the arcing chamber.
    Type: Application
    Filed: May 22, 2003
    Publication date: November 25, 2004
    Inventors: Kevin D. Horner-Richardson, Pearl A. Grant, Roger W. Hewett, Gene V. Hewes, Howard H. Horn
  • Patent number: D781279
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: March 14, 2017
    Inventor: Howard H Horn, II
  • Patent number: D781843
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: March 21, 2017
    Inventor: Howard H Horn, II