Method of making plastic cartridge casing

Details Method of making plastic cartridge casing Method of making plastic cartridge casing

1974-05-17

1977-12-27

Kucia, Richard R.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Plural sequential shaping or molding steps on same workpiece

264296, 264320, 264322, B29F 500

Patent

active

040655415

ABSTRACT:
A method of making a primer seal for a one-piece plastic shotgun shell, i.e. where the tubular body and base portion are integral, by extruding a ring of plastic around the primer opening and then forcing the plastic ring inside the primer opening to form a continuous, annular, gas sealing ring of plastic within the primer opening.

REFERENCES:
patent: 2961717 (1960-11-01), Morin
patent: 3185095 (1965-05-01), Mayer
patent: 3284560 (1966-11-01), King
patent: 3418409 (1968-12-01), Hesse

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