Patents Assigned to Griffin Intellectual Property Development Corporation
  • Golf practice apparatus
    Patent number: 5720670
    Abstract: A golf practice platform is provided having a practice surface which can be tilted to simulate up hill, down hill and side hill shots by the action of a pair of screw drives and a pair of double acting hydraulic cylinders acting about a universal joint. A golf practice mat is also provided for use on the tilting platform or on other golf practise surfaces. The mat provides a means for varying the exposed height of the bristles to simulate grass conditions such as tee box, fairway and rough.
    Type: Grant
    Filed: July 26, 1996
    Date of Patent: February 24, 1998
    Assignee: Griffin Intellectual Property Development Corporation
    Inventors: Bruce J. Oxley, Gary A. Stegmeier, Paul R. Crawford