Side bar lock with enhanced pick resistance

Details Side bar lock with enhanced pick resistance Side bar lock with enhanced pick resistance

1983-07-05

1985-06-25

Moore, Richard E.

Locks

Operating mechanism

Key

E05B 2706

Patent

active

045245932

ABSTRACT:
A compact cylinder lock operated by a key having smooth edges and detents in opposed side faces. The locking mechanism includes series connected pin tumblers and side bars which are resiliently biased. A resiliently biased locking bar having locking lugs extending therefrom cooperates with the side bars and lock housing; the locking bar moving out of engagement with the housing and into gates in the side bars when the side bars are moved a sufficient distance by the pin tumblers. The side bars are provided with false gates which engage the lugs on the locking bar to prevent unauthorized opening of the lock.

REFERENCES:
patent: 2629249 (1953-02-01), Mendelsohn
patent: 4292823 (1981-10-01), Reinhord et al.
patent: 4404824 (1983-09-01), Hennessy

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