Locks – Operating mechanism – Using a powered device
Patent
1985-07-08
1987-04-14
Holko, Thomas J.
Locks
Operating mechanism
Using a powered device
70279, 70339, 70355, E05B 3512, E05B 4706
Patent
active
046568522
ABSTRACT:
The present invention relates to a lock with a double locking mechanism comprising a first locking mechanism having tumblers movable by a first key to authorize the operation, by means of a second key, of a second locking mechanism comprising a bolt associated with a releasable fingered bolt-retaining member through the medium of a link bar pivotally mounted on the releasable member and pivotally connected by one of its ends to the bolt, whereas the other end of the bar is adapted to co-operate with a retractable stop controlled from a distance.
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Dino Suzanne L.
Fichet-Bauche
Holko Thomas J.
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