Patents by Inventor George G. Coffield, Jr.

George G. Coffield, 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).

  • High velocity tapered bore gun and ammunition
    Patent number: 4126955
    Abstract: A high velocity gun and ammunition wherein the projectile is encased in a formable material which is squeezed in the tapered bore of the gun to more efficiently utilize expansion gases for accelerating the projectile.
    Type: Grant
    Filed: March 17, 1977
    Date of Patent: November 28, 1978
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: George G. Coffield, Jr., Dennis L. Beug