Patents by Inventor Timothy S. Martinson

Timothy S. Martinson 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).

  • Hydraulic circuit for line marker having marking, flush and clean out modes of operation
    Patent number: 7140555
    Abstract: A line marker carries a spray nozzle assembly for marking or painting a line on a horizontal surface. The line marker has a hydraulic circuit which includes a reservoir for holding marking liquid therein and a tank for holding water therein. A pump can pump marking liquid through the spray nozzle during a marking mode of operation or water through the spray nozzle during a flush mode of operation. In the marking mode, at least some marking liquid is recirculated back through the reservoir to help keep the marking liquid in the reservoir agitated and mixed. In the flush mode, water is blocked from entering the reservoir and is recirculated back into the water flow from the tank. In the clean out mode, the hydraulic circuit is operated as if in the marking mode, except that the reservoir is rinsed with an external source of water with the rinse water circulating through the hydraulic circuit and back to the reservoir.
    Type: Grant
    Filed: May 19, 2005
    Date of Patent: November 28, 2006
    Assignee: The Toro Company
    Inventors: Benjamin A. Bricko, Timothy S. Martinson
  • Lighting instrument
    Patent number: D439356
    Type: Grant
    Filed: October 15, 1999
    Date of Patent: March 20, 2001
    Assignee: Vari-Lite, Inc.
    Inventors: Timothy S. Martinson, Travis J. Reinert, Breck M. Outland, Vincent W. Brown
  • Lamp head assembly
    Patent number: D452339
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: December 18, 2001
    Assignee: Vari-Lite, Inc.
    Inventors: Breck M. Outland, Timothy S. Martinson, James Maddux, III, J. Christopher Corry, Michael C. Bell, Timothy W. Terleski, Staci A. Mininger
  • Lamp head assembly
    Patent number: D457673
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: May 21, 2002
    Assignee: Vari-Lite, Inc.
    Inventors: Timothy S. Martinson, Timothy W. Terleski