Patents by Inventor Mark D. Greene

Mark D. Greene 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).

  • Drive mechanism for searchlights
    Patent number: 4688448
    Abstract: A motorized drive is provided, of a type which includes a pair of coaxial shafts that are individually motor driven, which is especially economical to manufacture and assemble, while providing reliable operation. The drive includes coaxial shafts and upper and lower assemblies that each includes a motor mounted on a plate disposed about the shaft, a gear disposed about the shaft and driven by the motor, and a tapered bushing which couples the gear to a corresponding shaft. A coil spring disposed around the shafts presses the upper and lower assemblies apart to urge the tapered bushings into the tapered holes of the gears to couple them.
    Type: Grant
    Filed: January 27, 1986
    Date of Patent: August 25, 1987
    Assignee: ITT Corporation
    Inventors: Richard E. Hollis, Mark D. Greene
  • Forearm outrigger ski
    Patent number: D349144
    Type: Grant
    Filed: December 21, 1992
    Date of Patent: July 26, 1994
    Inventor: Mark D. Greene