Pin tumbler lock

Details Pin tumbler lock Pin tumbler lock

1995-04-10

1997-11-11

Dino, Suzanne

Locks

Operating mechanism

Key

70493, 70367, 70379R, E05B 2706

Patent

active

056851847

ABSTRACT:
A pin tumbler lock has a rotary plug with three rows of tumbler pin mounting holes to accommodate a large number of tumblers. Rotational control of the plug is by means of a stop plate carried on a stem which is an integral extension of the plug. The lock cylinder has a rearwardly extending tab having its opposite side edges in registration with stop surfaces on the stop plate to limit the plug motion in two directions. The lock may be shortened by such provision of exterior rotational control to provide a shortened locking dimension and/or to accommodate a substantial number of pins and tumblers.

REFERENCES:
patent: 3303677 (1967-02-01), Bauer
patent: 3777520 (1973-12-01), Crepinsek
patent: 4122694 (1978-10-01), Gretler
patent: 4137739 (1979-02-01), Keller
patent: 4404824 (1983-09-01), Hennessy
patent: 4516416 (1985-05-01), Prunbauer et al.
patent: 4761977 (1988-08-01), Weatherby
patent: 4771620 (1988-09-01), Kleinhany
patent: 4823575 (1989-04-01), Florian
patent: 5148690 (1992-09-01), Wang
patent: 5265453 (1993-11-01), Konii et al.

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