Patents by Inventor Richard E. Topping

Richard E. Topping 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).

  • Patent number: 5429054
    Abstract: A tracer wad for a cartridge comprises a shot holder consisting of four quadrants defining between them a tubular member, a tracer element holder and a conical recess leading to a bore for directing ignited propellant onto a tracer element held in the holder to ensure reliable ignition of the tracer element on firing of the cartridge. A flexible skirt portion ensures a good gas seal between the wad and the barrel of a firearm when the cartridge is fired. When the wad leaves the barrel, the quadrants are peeled back and the tracer element leaves the holder to follow the trajectory of the shot.
    Type: Grant
    Filed: February 18, 1993
    Date of Patent: July 4, 1995
    Inventor: Richard E. Topping
  • Patent number: 5087393
    Abstract: A smoke producing article comprises preformed granules of a smoke generating material admixed with an inert binder. The granules are compressed at such a pressure and for such a period of time that the granules deform to take up a reduced volume overall but remain separable discrete particles. The smoke generating material is advantageously red phosphorus. The compression is at 2-7 tons/sq. inch (31-110 MPa), and the compression time is 3-10 seconds.
    Type: Grant
    Filed: August 31, 1989
    Date of Patent: February 11, 1992
    Assignee: Astra Holdings Public Limited Company
    Inventors: Martin J. Guest, Richard E. Topping, Roderick J. McGregor