Locks – Operating mechanism – Key
Patent
1984-09-12
1987-03-10
Wolfe, Robert L.
Locks
Operating mechanism
Key
70 15, 70422, E05B 1516, E05B 6300
Patent
active
046482555
ABSTRACT:
A lock protecting device for high security safes uses two hardened-material plates between which ball bearings have been nested in an egg-crate fashion. The plates with the safe's lock works mounted thereon are mounted to the interior of the safe door in order to present consecutive barriers to an intruding drill bit. Another plate is mounted to the rear of the lock works such that an intruding drill bit will lastly strike this plate causing it to break away, thereby releasing a plunger into engagement with the locking bolt and preventing opening of the safe door even if the rest of the lock works are manipulated into their unlocked state.
REFERENCES:
patent: 40947 (1863-12-01), Rogers
patent: 261533 (1882-07-01), Corliss
patent: 881032 (1908-03-01), Schultz
patent: 1452567 (1923-04-01), Miller et al.
patent: 1607426 (1926-11-01), Bell et al.
patent: 2938374 (1960-05-01), Criscuolo et al.
patent: 2970217 (1961-01-01), Enikeieff
patent: 3371628 (1968-03-01), McClellan
patent: 3735714 (1973-05-01), Shoop
patent: 3844019 (1974-10-01), Shwayder et al.
patent: 3976434 (1976-08-01), Shwayder
patent: 4147044 (1979-04-01), Bernath
patent: 4470275 (1984-09-01), Fisher
patent: 4520736 (1985-06-01), Crosby et al.
Illich Russell W.
Wolfe Robert L.
LandOfFree
Lock protecting device for high security safes does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Lock protecting device for high security safes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lock protecting device for high security safes will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1015513