Firing pin locking device and method

Details Firing pin locking device and method Firing pin locking device and method

1976-05-03

1977-05-10

Jordan, Charles T.

Firearms

Safety mechanism

Trigger lock

F41C 1704

Patent

active

040219550

ABSTRACT:
A semiautomatic pistol has a frame which supports a barrel and breech-slide for chambering a cartridge in the breech end of the barrel and extracting a spent cartridge. The breech-slide carries an inertia type firing pin which is displaced to fire a chambered cartridge by a hammer pivotally mounted upon the frame. A trigger bar, mounted upon a trigger displaces a sear to release the hammer when the trigger is pulled. A breech-slide operated disconnect causes pivoting of the trigger bar as the breech-slide recoils to allow the sear to snap back to a position in which it can engage the searing surface of the hammer when the breech-slide moves forwardly.
A firing pin lock is biased to a position where the pin is free to travel under the impetus of a falling hammer. The upper surface of a pivotally mounted shell ejector normally engages the firing pin lock to maintain it in a position where the firing pin is locked. When the trigger is pulled to release the cocked hammer, the trigger bar simultaneously pivots the ejector out of engagement with the firing pin lock, which action unlocks the firing pin. The pivoting of the trigger bar by the disconnect frees the ejector from the trigger bar, allowing a spring to return the ejector to its former position in which the firing pin will be locked as the breech-slide moves forwardly into battery position. This arrangement prevents accidental discharge of the firearm by displacement of the firing pin as may be occasioned by dropping the firearm on the muzzle end or on the hammer.

REFERENCES:
patent: 2846925 (1958-08-01), Norman
patent: 3724113 (1973-04-01), Ludwig
patent: 3830002 (1974-08-01), Volkmar

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