Plastic cartridge case

Details Plastic cartridge case Plastic cartridge case

1984-10-04

1986-09-30

Tudor, Harold J.

Ammunition and explosives

Cartridges

Case

F42B 530

Patent

active

046141570

ABSTRACT:
An all-plastic cartridge case is disclosed. The case is all-plastic polyethylene and has a hard-plastic rim and a soft-plastic glass-filled high density polyethylene basewad. The basewad is of a plastic similar to but stronger and tougher than that of the shotshell tube while the rim is of a hard plastic which is chemically dissimilar to the tube. The rim is mechanically locked to the tough basewad and the basewad is chemically bonded to the tube. Also disclosed is a two-step method for molding such a shell with a triple plastic head. Either the rim or the basewad is molded first and the other of the two is molded through the first.

REFERENCES:
patent: 2953990 (1960-09-01), Miller
patent: 4147107 (1979-03-01), Ringdal

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