Tamper-resistant lock

Details Tamper-resistant lock Tamper-resistant lock

1988-03-25

1990-04-24

Wolfe, Robert L.

Locks

Portable

Padlocks

70 39, 70417, E05B 6722

Patent

active

049189492

ABSTRACT:
A lock having a shackle and housing in which the shackle is a symmetrical, U-shaped member with spaced, parallel, identically configured legs having free ends, and the housing has a pair of spaced openings in one side thereof for receiving the free ends of the shackle. Either end of the shackle may be inserted into either opening, and detent means are provided in the housing in association with the openings to retain the ends of the shackle in the openings. One of the detent means is fixed and the other has a movable portion to enable the associated end of the shackle to be engaged and disengaged relative thereto. A lock mechanism in the housing is operable to secure the movable detent means against movement to lock the shackle in the housing. In one form of the invention, a reinforcing sleeve is placed around the housing in the area of the lock mechanism to prevent damage to the housing and lock mechanism.

REFERENCES:
patent: 4070879 (1978-01-01), Thompson
patent: 4545224 (1985-10-01), Zane
patent: 4584855 (1986-04-01), Burlingame

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