Cylinder lock with cover

Details Cylinder lock with cover Cylinder lock with cover

1986-06-10

1988-02-09

Wolfe, Robert L.

Locks

Parts, attachments, accessories and adjuncts

For key-operated mechanism

70423, 70427, E05B 1718

Patent

active

047234288

ABSTRACT:
A cylinder lock with a cover that is held open with first and second engaging members during the time that a key is inserted in the lock. The lock further includes a mechanism for disabling the operation of a remote lock release device upon rotation in a predetermined direction of a key in the lock.

REFERENCES:
patent: 1811141 (1931-06-01), Leventhal
patent: 2213814 (1940-09-01), Jacobi
patent: 2355300 (1944-08-01), Johnstone
patent: 2602319 (1952-07-01), Jacobi
patent: 2702468 (1955-02-01), Spain
patent: 3564880 (1971-02-01), Kwasiborski
patent: 3898824 (1975-08-01), Borlinghaus
patent: 3930391 (1976-01-01), Borlinghaus
patent: 4192161 (1980-03-01), Borlinghaus
patent: 4586355 (1986-05-01), Lee et al.
patent: 4597274 (1986-07-01), Coscia et al.

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