Patents by Inventor Peter S. Ashmore

Peter S. Ashmore 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).

  • Anchor bolt for stabilizing rock strata and method of installing
    Patent number: 5622454
    Abstract: A thrust plate which bears on a rock face is connected to a load-bearing termination on one end portion of an elongate member, e.g., a hollow rope, extending along a hole bored into the rock. An anchorage medium fills the hole, anchoring the elongate member in the rock, and extends between the end portion and the surrounding portion of the termination, securing these two portions together.
    Type: Grant
    Filed: June 23, 1995
    Date of Patent: April 22, 1997
    Assignee: Bridon PLC
    Inventors: Peter S. Ashmore, John M. Walton
  • Flexible roof bolt
    Patent number: 5458442
    Abstract: A load-bearing termination (1) engages an end portion of a rope (3) consisting of strands extending helically around a central void. The termination (1) has an external thread (16) for tensioning purposes and an internal bore (11) which accommodates with the central void to enable injection of grouting fluid.
    Type: Grant
    Filed: October 19, 1994
    Date of Patent: October 17, 1995
    Assignee: Bridon PLC
    Inventor: Peter S. Ashmore