Patents by Inventor Peter L. K. Dury

Peter L. K. Dury 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).

  • Playing surfaces sports
    Patent number: 4501420
    Abstract: A method of constructing a playing surface for sports such as soccer, cricket and tennis is disclosed, comprising the steps of laying one or more flexible water-permeable envelopes containing an unbonded base material comprising sand on a drained or water-permeable surface, and placing a sheet of resilient material on to the envelope. In a preferred embodiment, a second sheet of resilient material having different bounce characteristics from the first is placed on the first sheet, and an artificial turf material is laid on top.
    Type: Grant
    Filed: April 25, 1983
    Date of Patent: February 26, 1985
    Assignee: Nottingham County Council
    Inventor: Peter L. K. Dury