Fire control mechanism for an automatic pistol

Details Fire control mechanism for an automatic pistol Fire control mechanism for an automatic pistol

1996-11-18

1998-09-15

Johnson, Stephen M.

Firearms

Firing mechanism

Rearward sliding breech bolt

F41A 1931, F41A 1938

Patent

active

058062254

ABSTRACT:
A fire control system for a semiautomatic, double action only pistol includes a sear carried by a biased sear arm. As in other pistols, the sear engages a striker to load it against a striker spring until it is released to fire a chambered round. In the present invention, the sear arm is biased so that it urges the sear forward and upward, against the rearward movement of the sear as a result of the pulling of a trigger operating through a trigger arm, and restores the sear after release of the striker. The sear arm is biased by a spring system comprising two torsion springs. One torsion spring operates against the sear block to urge the sear arm in an upward direction; the other torsion spring, pivotally supporting the sear, operates on it to urge it forward. The sear and the striker lie in the same plane. Therefore, the sear has a second cam surface that engages the striker leg when the trigger is released, urging the sear downward as the striker passes over it to set up the sear for loading the striker the next time the trigger is pulled.

REFERENCES:
patent: 580925 (1897-04-01), Browning
patent: 621747 (1899-03-01), Browning
patent: 929491 (1909-07-01), Reifgraber
patent: 930710 (1909-08-01), Wiles
patent: 970645 (1910-09-01), Rosier
patent: 990475 (1911-04-01), Cuccurullo
patent: 1081761 (1913-12-01), Mauser
patent: 1234961 (1917-07-01), Tansley
patent: 1290855 (1919-01-01), Wesson
patent: 1486497 (1924-03-01), Schmeisser
patent: 1835715 (1931-12-01), McCoy
patent: 2296998 (1942-09-01), Koehler
patent: 2346484 (1944-04-01), Gradle
patent: 2551370 (1951-05-01), Gartner
patent: 3167877 (1965-02-01), Jungeling
patent: 3183616 (1965-05-01), Gandy
patent: 3566745 (1971-03-01), Jauch et al.
patent: 3641694 (1972-02-01), Seidel et al.
patent: 3678800 (1972-07-01), Seidel et al.
patent: 3683537 (1972-08-01), Silva
patent: 3696706 (1972-10-01), Seidel et al.
patent: 3722358 (1973-03-01), Seecamp
patent: 3760522 (1973-09-01), Guhring
patent: 3786589 (1974-01-01), Kaltmann
patent: 3861273 (1975-01-01), Seidel et al.
patent: 3919781 (1975-11-01), Chaba
patent: 4078327 (1978-03-01), Moller et al.
patent: 4132023 (1979-01-01), Weldle
patent: 4222308 (1980-09-01), Arnett
patent: 4236337 (1980-12-01), Beretta
patent: 4265161 (1981-05-01), Beretta
patent: 4271623 (1981-06-01), Beretta
patent: 4282795 (1981-08-01), Beretta
patent: 4306487 (1981-12-01), Beretta
patent: 4348941 (1982-09-01), Ketterer et al.
patent: 4359834 (1982-11-01), Beretta
patent: 4388773 (1983-06-01), Beretta
patent: 4454673 (1984-06-01), Meidel
patent: 4502237 (1985-03-01), Krogh
patent: 4512236 (1985-04-01), Thevis et al.
patent: 4523509 (1985-06-01), Thevis et al.
patent: 4539889 (1985-09-01), Glock
patent: 4575963 (1986-03-01), Ruger et al.
patent: 4577430 (1986-03-01), Ruger et al.
patent: 4587756 (1986-05-01), Jakubaschk et al.
patent: 4590697 (1986-05-01), Ruger et al.
patent: 4625443 (1986-12-01), Beretta
patent: 4625445 (1986-12-01), Ruger
patent: 4627184 (1986-12-01), Ruger et al.
patent: 4635530 (1987-01-01), Weldle
patent: 4681020 (1987-07-01), Polanecky
patent: 4707942 (1987-11-01), Peters
patent: 4759885 (1988-07-01), Kurtz
patent: 4768302 (1988-09-01), Beretta
patent: 4771562 (1988-09-01), Ruger
patent: 4823671 (1989-04-01), Buryta
patent: 4825744 (1989-05-01), Glock
patent: 4833811 (1989-05-01), Wilkinson
patent: 4893546 (1990-01-01), Glock
patent: 4910903 (1990-03-01), Senfter
patent: 4916843 (1990-04-01), Beretta
patent: 4930400 (1990-06-01), Brandl et al.
patent: 4934081 (1990-06-01), Mooney
patent: 4977815 (1990-12-01), Stephens
patent: 4984504 (1991-01-01), Beretta
patent: 5014456 (1991-05-01), Kurtz et al.
patent: 5024016 (1991-06-01), Smith
patent: 5050480 (1991-09-01), Knight, Jr. et al.
patent: 5060555 (1991-10-01), Sater et al.
patent: 5086579 (1992-02-01), Flatley et al.
patent: 5129172 (1992-07-01), Brennan
patent: 5159137 (1992-10-01), Brennan
patent: 5275084 (1994-01-01), Ruger
patent: 5309815 (1994-05-01), Moller et al.
patent: 5386659 (1995-02-01), Vaid et al.

Affiliated with

Also associated with

Rating

Fire control mechanism for an automatic pistol does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fire control mechanism for an automatic pistol, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fire control mechanism for an automatic pistol will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-76587