Patents by Inventor Thomas E. Kretzschmar

Thomas E. Kretzschmar 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).

  • Light projector
    Patent number: 7517088
    Abstract: A light projector, including an elongate housing assembly and a tubular light chamber assembly that comprises a plurality of tubular components and is coaxially enclosed by the housing assembly, with optical devices positioned within the light chamber assembly.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: April 14, 2009
    Inventors: Thomas E. Kretzschmar, John T. Petrick, Richard A. Wolfe
  • Contour light projector
    Patent number: 6832845
    Abstract: Disclosed are a contour light projector including an optical bench for mounting optical components, a mounting assembly that includes a dual pivot system for increased versatility in directing a light projector mounted thereon, improved masking devices for the light projector, and lighting system housings for a variety of installations.
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: December 21, 2004
    Inventors: Thomas E. Kretzschmar, Gilbert Thomas Pistole
  • Lighting mechanism
    Patent number: 4689726
    Abstract: A mechanism for lighting an article of furnishing, such as a bookcase with adjustable shelves, comprising a fixture laterally extending along a shelf, said shelf being adjustably positionable along a combination electrical conductor and shelf positioner, said fixture including an electrically conductive strip, a plurality of series connected electrical terminals, and a plurality of lamp means, each connecting said strip and one of said terminals.
    Type: Grant
    Filed: February 28, 1986
    Date of Patent: August 25, 1987
    Inventor: Thomas E. Kretzschmar