Firearms – Safety mechanism
Patent
1995-05-25
1997-08-12
Johnson, Stephen M
Firearms
Safety mechanism
89196, 42 7502, F41A 1700
Patent
active
056553269
ABSTRACT:
A method is disclosed for placing a semiautomatic pistol, such as a Glock pistol (or any other type of pistol having a recoiling slide on a frame for both loading another cartridge from a magazine and cocking the trigger mechanism of the pistol), in a condition of absolute safety for deployment. That new condition is with a cartridge in the chamber of the pistol and its trigger mechanism uncocked. The method is carried out by separating the slide from the frame of an uncocked pistol, partially disassembling the slide to place a round on the breech face of the chamber and reassembling the slide with the chambered end of the barrel over the cartridge. The slide is then replaced on the frame by drawing it back over a spring-loaded slide lock. The trigger mechanism may then be cocked when the pistol is deployed by drawing the slide back an extent necessary and sufficient for that purpose without engaging a mechanism for loading another cartridge in the chamber. Tactile and/or audible means are provided to indicate when the slide has been drawn back that necessary and sufficient extent to cock the trigger mechanism in the frame without inadvertently drawing it back so far as to load another round in the chamber. The pistol may thereafter be safely deployed and easily cocked for firing in a very quick motion by drawing the slide back that necessary and sufficient extent which is significantly less than necessary to load a round in the chamber, and with less force.
REFERENCES:
patent: 1376165 (1921-04-01), Rosebush
patent: 3657959 (1972-04-01), Kart
patent: 3696706 (1972-10-01), Seidel et al.
patent: 4539889 (1985-09-01), Glock
patent: 4825744 (1989-05-01), Glock
patent: 4893546 (1990-01-01), Glock
patent: 5325617 (1994-07-01), Vojta et al.
Glock Armorer's Manual, titled "Glock Semiautomatic Safe Action Pistols," pp. 5-37, Jan. 1992.
Peter Alan Kasler, "Glock:The New Wave in Combat Handguns," pp. 28-39 and 178-183, 1992.
Levavi Beatrice
Levavi Israel
Fernandez A. M.
Johnson Stephen M
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