High security lock assembly

Details High security lock assembly High security lock assembly

1981-03-04

1991-01-29

Walsh, Donald P.

Locks

Special application

For closures

70158, 70167, E05B 6506

Patent

active

049877550

ABSTRACT:
A high security lock assembly having a tang for holding lock shackle pins, ith said tang being attached to a first member, such as a bulkhead or a door jamb. A reversible cover, which can be attached to either the left or right side of a second member, such as a door or cover, is attached, as by welding, with a hasp liner. The hasp liner has a side opening sufficiently large to clear the tang and lock shackle pins, but too small for a lock to pass therethrough. The bottom of the hasp liner is open to receive a lock which is engageable with the lock shackle pins to secure the second member with the first member. The reversible cover is provided with a flange which can be welded directly to a door, cover, or hinge.

REFERENCES:
patent: 1274051 (1918-07-01), Jacobson et al.
patent: 2716882 (1955-09-01), Gill et al.
patent: 2942449 (1960-06-01), White
patent: 3041866 (1962-07-01), Segal
patent: 3572062 (1971-03-01), Beebe
patent: 3968895 (1976-07-01), Nielsen
patent: 3968985 (1976-07-01), Nielsen et al.
patent: 4120182 (1978-10-01), Michelman
patent: 4120183 (1978-10-01), Walters
patent: 4152910 (1979-05-01), Swisher
patent: 4234220 (1980-11-01), Finch

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