Electronic combination lock with time delay feature to control o

Details Electronic combination lock with time delay feature to control o Electronic combination lock with time delay feature to control o

1994-06-29

1995-09-19

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

235382, 2353825, 34082533, G06F 704, G06K 701

Patent

active

054519349

ABSTRACT:
An electronic lock is provided with a timer capability to delay the operability of the lock for a preset period of time following the proper and correct entry of a combination into the lock. This delay prevents the lock from opening until both the time has expired and an access code entered following the time delay. If the access code entered after the time delay is incorrect, a further time delay or penalty delay will prevent the operator from an immediate attempt to enter a second access code. If a second access code is entered after the penalty delay and also is incorrect, the entire lock operation resets and the operation of the lock must begin with the re-entry of the correct combination. The entry of a combination to operate the lock which is offset by a predetermined value from the authorized combination will indicate by alarm at a remote monitoring center that the lock is being opened and may be opened under duress to the operator. The combination of the time delay as well as the entry of the alarm combination provide an opportunity for the monitoring center personnel either to react or to notify the appropriate security/law enforcement personnel to respond to a potential robbery.

REFERENCES:
patent: 3881171 (1975-04-01), Moorman et al.
patent: 3950678 (1976-04-01), Brewer
patent: 4060846 (1977-11-01), Conn
patent: 4106316 (1978-08-01), Tippin
patent: 4161721 (1979-07-01), Conklin et al.
patent: 4679031 (1987-07-01), Hwang
patent: 4742327 (1988-05-01), Burgess et al.
patent: 4755799 (1988-07-01), Romano
patent: 4803482 (1989-02-01), Verslycken
patent: 4977765 (1990-12-01), Legault et al.
patent: 5061923 (1991-11-01), Miller et al.
patent: 5091939 (1992-02-01), Cole et al.
patent: 5260551 (1993-11-01), Wiik et al.

Affiliated with

Also associated with

Rating

Electronic combination lock with time delay feature to control o does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic combination lock with time delay feature to control o, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic combination lock with time delay feature to control o will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1831015