Magazine for pump action shotgun

Details Magazine for pump action shotgun Magazine for pump action shotgun

1995-10-10

1996-10-01

Johnson, Stephen M.

Ordnance

Cartridge feeding

With magazine

89 3302, 42 4901, F41A 974

Patent

active

055612580

ABSTRACT:
A magazine filled with ammunition that can be quickly and easily attached to and detached from a firearm. It has a housing with a chimney section that has an outlet port at its top end for feeding the ammunition into the firearm. There is an annular chamber in the housing of the magazine and it contains a spring-loaded drum. A pair of laterally spaced cog gears are mounted on the drum for capturing ammunition shells and transporting them along a circular axis until they reach the vertical linear axis of the chimney section. A follower assembly pushes the ammunition shells up through the chimney section. A shell retainer unit is mounted in the chimney section for preventing shells from exiting its outlet port when the magazine is detached from the firearm. The shell retainer unit is deactivated by a depressor member that moves downwardly when the magazine is attached to the firearm. A feed lip assembly is pivotally mounted adjacent the top end of the chimney section.

REFERENCES:
patent: 2321720 (1943-06-01), Whittaker
patent: 3239959 (1966-03-01), Sefried, II et al.
patent: 4445418 (1984-05-01), Sullivan et al.

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