Locks – Operating mechanism – Combination
Patent
1986-09-25
1989-06-27
Smith, Gary L.
Locks
Operating mechanism
Combination
70303A, 70305, 70306, 70312, 70315, 70321, 70327, 70330, 70332, E05B 3708
Patent
active
048417599
ABSTRACT:
A fast opening, high security combination lock includes a case, a dial connected to a rotatable spindle, and a plurality of rotatable tumblers mounted coaxially therewith. A movable impeller mounted on said spindle is carried by internal projections in the case to engage the tumblers in sequence as the dial is turned through a series of partial clockwise turns to combination characters and returns to a set mark. After setting the tumblers, the impeller engages a driver which, if all of the tumblers have been properly set, retracts a bolt. The impeller is reset to its initial position on the spindle and the tumblers are scattered to secure the lock, by rotating the dial one-half turn anti-clockwise.
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patent: 2611259 (1952-09-01), Berry et al.
patent: 2807954 (1957-10-01), Miller
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patent: 2881612 (1959-04-01), Smith et al.
patent: 2925726 (1960-02-01), Miller
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patent: 3391556 (1968-07-01), Schull
patent: 3481167 (1969-12-01), Barner
patent: 4048823 (1977-09-01), Szova
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patent: 4574603 (1986-03-01), Parma
Dino Suzanne L.
Hochberg D. Peter
Kusner Mark M.
Smith Gary L.
Weisz Louis J.
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