Locks – Special application – For closures
Patent
1995-05-26
1997-09-16
Dino, Suzanne
Locks
Special application
For closures
70 34, 70232, 411910, 81436, 292291, E05B 6300
Patent
active
056668317
ABSTRACT:
A locking system comprising a locking fastener having tamper-resistant features, and a special key having a bit at one end for engaging a socket in the head of the locking fastener to rotate the latter. The internal configuration of the socket corresponds to an external configuration of the bit, and the corresponding contour of the socket prevents the fastener from being turned by tools other than the special key. The fastener may have left-handed threads on its shaft and its head may be recessed in a counterbore in a closure part to prevent gripping tools from gripping an external surface of the head. The configurations of both the socket and the key may readily be made by economical metal working techniques.
REFERENCES:
patent: 2179045 (1939-11-01), Lewis
patent: 2362999 (1944-11-01), Hewitt
patent: 2686447 (1954-08-01), Vock et al.
patent: 3400626 (1968-09-01), Bergere
patent: 3496742 (1970-02-01), Rothweiler et al.
patent: 3498173 (1970-03-01), Wright
patent: 4027572 (1977-06-01), Burge
patent: 4161896 (1979-07-01), Creed
patent: 4170918 (1979-10-01), Burge
patent: 4191228 (1980-03-01), Fenton
patent: 4211128 (1980-07-01), Plumer
patent: 4809569 (1989-03-01), Erb
patent: 4964773 (1990-10-01), Schmidt
patent: 5024073 (1991-06-01), Lloyd
patent: 5074598 (1991-12-01), Masseth et al.
patent: 5224402 (1993-07-01), Pettersson
patent: 5353667 (1994-10-01), Wilner
patent: 5378101 (1995-01-01), Olson et al.
patent: 5433094 (1995-07-01), Sandin et al.
Dino Suzanne
MCI Corporation
LandOfFree
Anti-tampering locking system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Anti-tampering locking system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anti-tampering locking system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-210959