Dual control mode lock system

Details Dual control mode lock system Dual control mode lock system

1995-06-07

1998-06-30

Gall, Lloyd A.

Locks

Operating mechanism

Using a powered device

70283, 34082531, E05B 4900

Patent

active

057717222

ABSTRACT:
A security system requires the bringing together, at the locking mechanism to be operated from a locked to an unlocked state, of a properly bitted mechanical key and the generator of a digitally coded electrical command signal. The electrical command signal is transmitted through the lock to an actuator so that the lock, when enabled by insertion of the mechanical key, may be operated. The key may define a portion of the signal transmission path between the command signal generator and the actuator.

REFERENCES:
patent: 4603564 (1986-08-01), Kleinhany et al.
patent: 4658105 (1987-04-01), Seckinger
patent: 4686358 (1987-08-01), Seckinger et al.
patent: 4730471 (1988-03-01), Seckinger et al.
patent: 4745785 (1988-05-01), Uebersax
patent: 4761976 (1988-08-01), Kleinhany
patent: 4771620 (1988-09-01), Kleinhany
patent: 4789859 (1988-12-01), Clarkson et al.
patent: 4848115 (1989-07-01), Clarkson et al.
patent: 4854146 (1989-08-01), O'Connell et al.
patent: 4858453 (1989-08-01), Namazue
patent: 4868409 (1989-09-01), Tanaka et al.
patent: 4939915 (1990-07-01), Vonlanthen
patent: 4998952 (1991-03-01), Hyatt, Jr. et al.
patent: 5140317 (1992-08-01), Hyatt, Jr. et al.
patent: 5373718 (1994-12-01), Schwerdt et al.
patent: 5469727 (1995-11-01), Spahn et al.

Affiliated with

Also associated with

Rating

Dual control mode lock 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 Dual control mode lock system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual control mode lock system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1848489