Lock protection mechanism

Details Lock protection mechanism Lock protection mechanism

1987-02-06

1988-09-27

Wolfe, Robert L.

Locks

Operating mechanism

Key

70455, E05B 1714

Patent

active

047732431

ABSTRACT:
A ganged co-axial tumbler lock mechanism is provided to lock a slideable shaft coupled to a keyhole cover. Setting the proper combination on the tumbler lock mechanism permits the shaft to be slid away from the cylinder lock, thus moving the keyhole cover away from the cylinder lock keyhole. Once the tumbler lock is opened, a user may set the tumbler lock mechansim to a different combination. The entire mechanism may be constructed as an add-on mechanism for use with existing keyed cylinder locks. In an alternative embodiment, the present invention is integrally formed with a keyed cylinder lock for installation as an original lock.

REFERENCES:
patent: 4327566 (1982-05-01), Ling

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