Patents by Inventor Achiel M. DuPont, Jr.

Achiel M. DuPont, Jr. 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: 4038905
    Abstract: This invention relates to new and improved methods and apparatus for effeating recoil and counterrecoil movement of the gun tube of a weapon system wherein a movable piston sleeve concentric with and movably connected to the gun tube defines a pressurizable compressible fluid chamber with the stationary cradle of the weapon system and carries a piston head which separates the chamber into two compartments, a muzzle compartment and a breech compartment, and which defines with the interior wall of the cradle an annular fluid throttling orifice to cause energy dissipation during movement of the piston. The piston sleeve is separated by the piston head into two sections of different diameters, the larger diameter section being located on the muzzle compartment side of the chamber so that compressed fluid, at the termination of the recoil cycle acting on the piston, may initiate counterrecoil movement of the piston and gun tube as a result of the force differential in said compartments.
    Type: Grant
    Filed: April 29, 1976
    Date of Patent: August 2, 1977
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Achiel M. DuPont, Jr., J. Burnett Moody, Roger L. Newlon