Removable cam-lock unit and dead-bolt mechanism

Details Removable cam-lock unit and dead-bolt mechanism Removable cam-lock unit and dead-bolt mechanism

1986-12-08

1987-11-10

Smith, Gary L.

Locks

Special application

For closures

109 52, 292170, 70368, 70371, E05B 6314, E05B 904, E05G 104, E05C 112

Patent

active

047048808

ABSTRACT:
Dead-bolt locking apparatus includes a door-carried dead-bolt mechanism having oppositely projecting dead-bolts on dual aligned slides, and a key-controlled cam-lock unit receivable in a cavity in the dead-bolt mechanism. The cam-lock unit is inserted into the cavity with the lock of the cam-lock unit "unlocked", developing balanced outward thrust on the door-securing dead-bolt slides. Locking the cylinder lock then secures the cam-lock unit against removal and thereby locks the dead-bolt apparatus.

REFERENCES:
patent: 1207123 (1916-12-01), Arsneau
patent: 1287973 (1918-12-01), Gruber
patent: 1534584 (1925-04-01), Fredrick
patent: 1901613 (1933-03-01), Smith
patent: 1941225 (1933-12-01), Radke et al.
patent: 2690144 (1954-09-01), Ellis et al.
patent: 2905493 (1959-09-01), Tocchetto
patent: 3792884 (1974-02-01), Tutikawa
patent: 3919866 (1975-11-01), Lipschutz
patent: 4370873 (1983-02-01), Edmunds
patent: 4484462 (1984-11-01), Berkowitz
patent: 4547006 (1985-10-01), Castanier
patent: 4559880 (1985-12-01), Lacka
Medco Security Locks, pp. 91-92, "T Handle Cylinder Locks".

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