Locks – Operating mechanism – Combination
Patent
1981-08-03
1985-09-17
Wolfe, Robert L.
Locks
Operating mechanism
Combination
70319, 70330, 70432, 70443, 70462, E05B 900, E05B 3708, E05B 4100
Patent
active
045412596
ABSTRACT:
An easily assembled combination lock has improved tumbler wheel construction, combination changing apparatus, and a bi-positional lock cover which selects between spring-bolt and dead-bolt operation. The improved tumbler wheels have two-piece construction, an inner drive member having a projection, groove and stop assembly cooperating with adjacent tumbler wheels, and a gate ring having a gate and improved gripping apparatus for frictionally engaging the gate ring with the inner drive member. The inner drive member has multiple ratchet teeth about its periphery and the improved gripping apparatus includes a pair of diametrically opposed gripping straps integral with the gate ring, in tension, and tangentially contacting the periphery of the inner drive member imparting a predetermined frictional resistance to rotation. Two normal modes of tumbler wheel operation are contemplated. Mode selecting structure is included on the lock cover to select between spring-bolt mode of bolt operation and dead-bolt mode of bolt operation merely by changing the orientation of the lock cover relative to the lock mechanism and housing.
REFERENCES:
patent: 447623 (1891-03-01), Rogers
patent: 745080 (1903-11-01), Smith
patent: 1092874 (1914-04-01), Taylor
patent: 1644650 (1927-10-01), Millice
patent: 1863537 (1932-06-01), Aster
patent: 2900813 (1959-08-01), Miller
patent: 4142388 (1979-03-01), Phillips
patent: 4312199 (1982-01-01), Uyeda
patent: 4353231 (1982-10-01), Uyeda
Gall Lloyd A.
La Gard, Inc.
Wolfe Robert L.
LandOfFree
Combination lock does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Combination lock, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Combination lock will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-364169