ALL PLASTIC SHOTSHELL CASE WITH TRANSVERSELY ORIENTED UNDULATIONS ON OUTER CYLINDRICAL SURFACE

• US 3,808,974 A
• Filed: 11/08/1971
• Issued: 05/07/1974
• Est. Priority Date: 11/08/1971
• Status: Expired due to Term

• Current Assignee: George L. Herter
• Original Assignee: George L. Herter
• Inventors: Herter, George L.
• Primary Examiner(s): Bentley, Stephen C.
• Application Number:
  US05/196,627
• Time in Patent Office: 911 Days
• Field of Search: 102/42R,43R,43P
• US Class Current: 102/466
• CPC Class Codes: F42B 5/30 of plastics , i.e. the cartridge-case tube is of plastics

Abstract

An all plastic shotshell case molded with the transverse base wall and cylindrical sidewall integral of and in one piece with each other, and the outer surface of the cylindrical sidewall having undulations all along the length thereof and oriented transversely of the longitudinal orientation of the cylindrical sidewall, said transverse undulations forming rings extending circumferentially around the cylindrical sidewall, or said undulations being in the pattern of circles, dots, squares, knurls or other shapes.

Claims

1. An all plastic shotshell case comprising:

a substantially cylindrical sidewall of molded plastic open at one end;

a base wall of molded plastic extending transversely of said sidewall at the opposite end thereof, said sidewall and base wall being formed integrally as one piece, and said base wall having an opening therein to receive the primer of the shotshell; and

a plurality of undulations on the outer surface of said sidewall projecting outwardly therefrom, said undulations being formed integrally with said sidewall and extending in longitudinally spaced circular patterns over more than one half of the length of said sidewall up to and along said open end thereof, and said undulations being in the form of circumferentially extending rings of varying width in a direction along the length of said cylindrical sidewall, with the narrower rings being disposed adjacent said open end of said sidewall and being deformable against a shotgun barrel under the pressure developed within said shotshell case upon firing.

2. An all plastic shotshell as defined in claim 1 wherein:

said undulations comprise a plurality of closely clustered annuli of circular shape.

3. An all plastic shotshell comprising:

a substantially cylindrical sidewall of molded plastic open at one end;

a base wall of molded plastic extending transversely of said sidewall at the opposite end thereof, said sidewall and base wall being formed integrally as one piece, and said base wall having an opening therein to receive the primer of the shotshell; and

a plurality of undulations on the outer surface of said sidewall projecting outwardly therefrom, said undulations extending transversely with respect to said cylindrical sidewall in generally circular patterns over a substantial portion of the length of said sidewall up to and along said open end thereof, and said undulations being of varying width in a direction along the length of said sidewall with the narrowest undulations being disposed adjacent said open end of said sidewall.