Patents by Inventor Thomas E. Persing

Thomas E. Persing 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).

  • Sealed beam headlamp
    Patent number: 4947078
    Abstract: A sealed beam headlamp that includes a collar bonded to an annular flange formed on the rear of a reflector and having an opening with a cylindrical support surface for receiving a plug-type lamp bulb assembly formed with a spherical portion that allows the lamp bulb assembly to be moved as a unit axially and pivoted for adjusting the position of the filament of the lamp bulb assembly relative to the reflector of the headlamp.
    Type: Grant
    Filed: June 5, 1989
    Date of Patent: August 7, 1990
    Assignee: General Motors Corporation
    Inventors: Lawrence M. Rice, Thomas E. Persing, Thomas J. Baldauf
  • Headlamp assembly
    Patent number: 4794495
    Abstract: A headlamp assembly having a retainer ring for supporting a lamp unit and which includes a level device that allows the lamp unit to be readily aimed about a horizontal axis.
    Type: Grant
    Filed: August 17, 1987
    Date of Patent: December 27, 1988
    Assignee: General Motors Corporation
    Inventors: David R. McMahan, Richard W. Nicholas, Thomas E. Persing, John D. Geddie
  • Headlamp aim cap
    Patent number: 4669035
    Abstract: A headlamp lens having at least one of its aiming pads provided with an aim cap and a method for bonding the aim cap to the aiming pad.
    Type: Grant
    Filed: July 21, 1986
    Date of Patent: May 26, 1987
    Assignee: General Motors Corporation
    Inventors: A. P. Stanley Hyde, Thomas E. Persing, Eugene C. Helm