Locks – Operating mechanism – Combination or key
Patent
1993-12-08
1996-01-23
Cuomo, Peter M.
Locks
Operating mechanism
Combination or key
70312, 70 71, 70 74, E05B 3700, E05B 6548
Patent
active
054857341
ABSTRACT:
A combination lock integrates the key lock performance into a combination lock, so that it can be unlocked by a supplement key when the combination number has been forgotten. The combination lock includes a base and cover assembly equipped with at least one numerical wheel, a sliding block slidably received within the base and cover assembly, a control means which has an engaging element being operably received on the sliding block, and sliding plate slidably received between the base and the sliding block. The sliding plate has at least one ear to control a sliding movement of the sliding plate and cooperate with the at least one numerical wheel, and a guide portion cooperating with the engaging element. The guide portion has two ends, the sliding plate being confined to move with the sliding block when the engaging element is in the first end and the sliding block being freely slidable relative to the sliding plate when the engaging element is in the second end.
REFERENCES:
patent: 3408839 (1968-11-01), Walters
patent: 4499745 (1985-02-01), Ricouard et al.
patent: 4557122 (1985-12-01), Hwang
patent: 4671088 (1987-06-01), Jeang
patent: 4719777 (1988-01-01), Hwang
patent: 4852372 (1989-08-01), Ling
patent: 4885923 (1989-12-01), Nakai
patent: 4926663 (1990-05-01), Azzalin
patent: 5211040 (1993-05-01), Gisiger
patent: 5237842 (1993-08-01), Rasch et al.
patent: 5372022 (1994-12-01), Terada et al.
Cuomo Peter M.
Dino Suzanne 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-1498593