Locks – Attack-actuated defeating mechanisms
Patent
1984-02-06
1986-01-07
Wolfe, Robert L.
Locks
Attack-actuated defeating mechanisms
70416, 70422, 109 635, E05B 6300
Patent
active
045627061
ABSTRACT:
A torsion spring longitudinally rotates a locking bolt when the bolt actung linkage is severed. A woodruff key or the like is upstanding from a surface of the bolt. When the linkage is undamaged, the key slides with the bolt through a slot on the lock frame. When the bolt is rotated by the spring, it is locked in the rotated position by a locking pawl. In the rotated position, the key is out of registry with the slot and the bolt cannot be withdrawn from its extended, locking position. A second embodiment replaces the key with a recess in the bolt into which a locking pawl engages to prevent movement of the locking bolt.
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patent: 3076420 (1963-02-01), McClellan
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patent: 4393790 (1983-07-01), Bagwell
Pickett Teddy L.
Self Henry L.
Beers Robert F.
Illich Russell W.
Phillips Thomas M.
St.Amand Joseph M.
The United States of America as represented by the Secretary of
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