Rotary port cover

Details Rotary port cover Rotary port cover

1976-05-27

1977-08-30

Jordan, Charles T.

Firearms

Breech loading

Sliding breechblock

F41C 2708

Patent

active

040444872

ABSTRACT:
An ejection port cover for a firearm which moves in pure rotation about an axis parallel to the bore of the firearm. The port cover is held about this axis and is oriented in the "open port" and "closed port" rotational position for proper alignment of a port cover cam with associated cam pin means on the reciprocating slide assembly since the port cover is shorter than the stroke of the slide assembly that engages and causes rotation of the port cover.

REFERENCES:
patent: 1413109 (1922-04-01), Feederle
patent: 2288202 (1942-06-01), Mossberg
patent: 2648153 (1953-08-01), Dicke
patent: 2940201 (1960-06-01), Reed
patent: 3030722 (1962-04-01), Ivy
patent: 3318192 (1967-05-01), Miller et al.
patent: 3368298 (1968-02-01), Browning
patent: 3619926 (1971-11-01), Alday

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