Security systems

Locks – Operating mechanism – Combination

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

70316, 70323, 70333R, E05B 3708

Patent

active

047222077

ABSTRACT:
A security system having a secure enclosure for holding an object. Access to the enclosure is controlled by a combination lock having a tumbler arrangement adapted for having its combination changed either by hand or with use of a key. The tumbler arrangement includes an apparatus for mounting a plurality of tumbler wheels in a stacked relationship for rotation about an axis. Each of the tumbler wheels has an inner element releasably engaged with a circumferentially disposed outer element. Each of the outer elements has a peripheral gate and a mechanism for masking the gate. A mechanism is provided for maintaining the inner and outer elements in an engaged condition for simultaneous rotation under normal tumber operation, and a peripherally gated rotatable driver wheel rotates the tumbler wheels. A fence lever includes a nose for contact with the driver wheel and a fence for contact with the tumbler wheels. The tumbler arrangement also includes an apparatus for preventing contact by the fence with the circumferential edges of the tumbler wheels while the tumbler wheels are being rotated. Finally, a mechanism is provided for axially disengaging the stacked inner elements from the stacked outer elements by the key while simultaneously preventing rotational and axial movement of the outer elements as the disengaged inner elements are rotated to change the combination of the tumbler arrangement in the combination lock.

REFERENCES:
patent: 2016487 (1935-10-01), Doenges
patent: 3045466 (1962-07-01), Aerlong
patent: 3386275 (1968-06-01), Potzick
patent: 3906761 (1975-09-01), Swaim
patent: 3968667 (1976-07-01), Gartner et al.
patent: 3983727 (1976-10-01), Todd
patent: 4040280 (1977-08-01), Main
patent: 4142388 (1979-03-01), Phillips et al.
patent: 4257249 (1981-03-01), Johns-Hunt
patent: 4275576 (1981-06-01), Miller
patent: 4353231 (1982-10-01), Uyeda
patent: 4420955 (1983-12-01), Marold
patent: 4532785 (1985-08-01), Uyeda
patent: 4541259 (1985-09-01), Uyeda

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Security systems does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Security systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Security systems will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1630913

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.