Single cylinder deadbolt lock mechanism
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 1, 1987
Grant Date -
N/A
app pub date -
Nov 6, 1986
filing date -
Nov 6, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A lock mechanism is shown having a latch bolt movable between retracted and extended positions, which latch bolt is operated by rotation of a lock cylinder at one side and a turn piece at the opposite side. A manually movable latching member operable from said opposite side of the lock mechanism is movable between a first position where operation of the latch bolt by the turn piece is prevented, and a second position where operation of the latch bolt by the turn piece is permitted. A combination lock operable from said opposite side of the lock mechanism may be used to lock the latching member in the first position thereof wherein operation of the latch bolt by the turn piece is prevented. With the combination lock set to the lock-open combination, movement of the latching member between said first and second position is permitted.
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