Patents by Inventor Gary A. Richardson

Gary A. Richardson 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).

  • Firearm with noise suppressor
    Patent number: 5033356
    Abstract: A noise suppressed firearm includes a closed chamber of fixed volume in communication with the barrel bore at a location nearer the breech than the muzzle. The closed chamber communicates with the barrel bore through passage means having a cross-sectional area at least as large as the barrel bore. The passage means communicates with the barrel bore at a location measured from the breech not greater than about 30% of the barrel length.
    Type: Grant
    Filed: January 16, 1990
    Date of Patent: July 23, 1991
    Inventor: H. Gary Richardson