Patents by Inventor Frank E. Greene

Frank E. Greene 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).

  • Telescoping retractor
    Patent number: 4037821
    Abstract: A telescoping retractor comprised of a two stage cylinder assembly actuated y an electroexplosive power cartridge. A pair of cylinders are mounted in concentric relation. A piston rod is carried in the inner cylinder. The power cartridge produces the gas which sequentially retracts the outer cylinder, the inner cylinder and then the piston which is secured to the structure to be retracted.
    Type: Grant
    Filed: August 10, 1976
    Date of Patent: July 26, 1977
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Frank E. Greene