Patents by Inventor Gregory J Biederman

Gregory J Biederman 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).

  • Cartridge cases and base inserts therefor
    Patent number: 8522684
    Abstract: A base insert for a cartridge case comprises a base end having a lip and a groove proximate the lip and having a primer pocket defined in the base end and an insert end having a base wall and a cylindrical wall extending there from, the base wall and cylindrical wall defining a powder fill pocket. The base wall has a flash hole disposed therein and an inner surface facing the powder fill pocket. The cylindrical wall has an inner surface intersecting with the inner surface of the base wall and an outer surface defining the outer circumference of the base insert. The intersection of the inner surface of the base wall and the inner surface of the cylindrical wall is curved or forms an oblique angle, while the outer surface of the insert end is not curved and does not form an oblique angle.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: September 3, 2013
    Assignee: Nylon Corporation of America, Inc.
    Inventors: Jack D Davies, Gregory J Biederman, Christopher A Coco