Firearms – Safety mechanism – Hammer or firing pin
Patent
1990-12-17
1992-02-11
Carone, Michael J.
Firearms
Safety mechanism
Hammer or firing pin
42 6903, F41A 1774
Patent
active
050865790
ABSTRACT:
Improved decocking mechanism for a semi-automatic firearm has a lever pivotable on one side of the frame of the gun. One end of the lever includes an actuator and the opposite end, has a sector gear meshed with the toothed surface of a pawl rotatable on the hammer pin between a first position and a second position. The pawl is disposed adjacent the hammer and includes a first leg engageable with the sear to pivot the same against sear spring pressure out of engagement with a first notch adapted for holding the hammer in its fully cocked position. The pawl includes a second leg engageable with the drawbar to pivot the same downwardly to prevent its engagement with the sear in response to the trigger pull. The hammer includes a second notch engageable with the sear to hold the hammer in a half-cocked position and a reset pin disposed to engage the first leg and to return the pawl and the decocking lever to their at-rest positions upon forward rotation of the hammer. A decocking lever spring serves to urge the decocking lever to its initial position.
REFERENCES:
patent: 4481863 (1984-11-01), Zanner et al.
patent: 4768302 (1988-09-01), Beretta
patent: 5000075 (1991-03-01), Tuma
American Rifleman, "Astro A-80 Pistol", Sep. 1981, pp. 60-62.
Flatley Stephen L.
Mears, Jr. Donald B.
Carone Michael J.
Smith & Wesson Corp.
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