Patents by Inventor John F. Prescott

John F. Prescott 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: 4474112
    Abstract: An arming firing relock device includes a resiliently biased handle lock, a rive shaft, an output shaft or keyed member and a pivot block which may be attached to the exterior surface of a rocket motor. The output shaft may be connected to drive a rocket motor arming firing device. The handle lock moves between a safe position and an armed position via a free position in which the handle lock, drive shaft and output shaft or keyed member may be rotated to control the arming firing device. The pivot block, output shaft or keyed member, drive shaft and handle lock all cooperate to positively lock the arming firing device in the safe or the armed positions respectively, yet enable changing positions without the need for tools.
    Type: Grant
    Filed: March 3, 1983
    Date of Patent: October 2, 1984
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: George E. Cooksey, John F. Prescott, Rodney H. Zagala
  • Patent number: 4372212
    Abstract: An electro-mechanical mechanism is disclosed which controls safety-armingring of an air-launched missile's rocket motor and safety-arming of the warhead. The mechanism has an out-of-line safety pyrotechnic design to maintain the electric firing circuits and explosive train in an open, safe position until a complete sequence of events occurs. Similarly, a second sequence must occur before warhead arming can proceed.
    Type: Grant
    Filed: November 24, 1980
    Date of Patent: February 8, 1983
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Warren R. Hoelzen, John F. Prescott, Michael N. Tyler
  • Patent number: 4213327
    Abstract: A flow bench includes a sealed box with an internal plenum having air flow from a source of pressure directed to several spaced points within the plenum; the sealed box includes an open upper end having a support surface around the open end including undercut spaced parallel grooves at an offset point thereon supporting a pair of seals in sealing engagement with the outer perimeter of a laminated porous panel that completely covers the open end; the flow bench further includes a removable cover.
    Type: Grant
    Filed: January 11, 1979
    Date of Patent: July 22, 1980
    Assignee: General Motors Corporation
    Inventors: John F. Prescott, Jr., William H. Roberts