Patents by Inventor John B. M. Ford

John B. M. Ford 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).

  • Airgun
    Patent number: 4865009
    Abstract: An airgun comprises a discharge chamber (3) for compressed air or gas. Compression of the air in the discharge tube is achieved by a pressurizing chamber (2) which contains pressurized gas or air. In one embodiment the discharge chamber (3) is filled by gas or air from the pressurizing chamber until a predetermined pressure within the discharge chamber is reached. A second embodiment provides liquefied gas in the pressurizing chamber that acts against a movable wall so as to ensure that the discharge chamber is at the liquefaction pressure.
    Type: Grant
    Filed: July 13, 1987
    Date of Patent: September 12, 1989
    Inventors: John B. M. Ford, Gerald V. Cardew
  • Spoiler for a vehicle and the like
    Patent number: D273671
    Type: Grant
    Filed: November 12, 1981
    Date of Patent: May 1, 1984
    Inventor: John B. M. Ford