Pin tumbler lock

Details Pin tumbler lock Pin tumbler lock

1981-03-02

1984-05-29

Husar, Cornelius J.

Locks

Operating mechanism

Key

70349, E05B 2702

Patent

active

044506996

ABSTRACT:
A tumbler lock including a housing that defines a keyway and a plurality of tumblerways communicating therewith. Disposed for both reciprocating and rotational movement in each of the tumblerways is a pin tumbler movable from locked positions into at least one shear position comprising predetermined longitudinal and angular positions. Biasing each of said tumblers into other than the predetermined shear angular positions are spring members each extending between the housing and one of the tumblers. A release mechanism is movable from a closed position into an open position with all the tumblers in their shear positions and is restrained in its closed position with any of the tumblers in one of its locked positions. Cooperating with the lock is a key having a plurality of alignment portions, each one adapted to engage an alignment surface on one of the pins and to move the pin into its shear position.

REFERENCES:
patent: 3499302 (1970-03-01), Spain et al.
patent: 4098103 (1978-07-01), Raskevicius

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