Locks – Operating mechanism – Using a powered device
Patent
1996-12-03
1998-07-07
Barrett, Suzanne Dino
Locks
Operating mechanism
Using a powered device
70279, 292DIG65, E05B 4900
Patent
active
057751420
ABSTRACT:
A door lock includes an electronic keypad and magnetic card reader arranged to send coded signals to a central processing unit that controls a solenoid latch located proximate to the locking bolt. When the solenoid is energized by a signal from the central processing unit (or an auxiliary switch) the locking bolt can be operated from the locked position to the unlocked position; otherwise the solenoid latch prevents the bolt from being operated.
REFERENCES:
patent: 4148092 (1979-04-01), Martin
patent: 4534194 (1985-08-01), Aydin
patent: 4677834 (1987-07-01), Hicks
patent: 4755799 (1988-07-01), Romano
patent: 4901545 (1990-02-01), Bacon et al.
patent: 4956984 (1990-09-01), Chi-Cheng
patent: 4979383 (1990-12-01), Tully
patent: 5027629 (1991-07-01), Uu
patent: 5083122 (1992-01-01), Clark
patent: 5113675 (1992-05-01), Uyeda
patent: 5136870 (1992-08-01), Gartner et al.
patent: 5184491 (1993-02-01), Schittenhelm
patent: 5337588 (1994-08-01), Chhatwal
patent: 5339662 (1994-08-01), Goldman
patent: 5400722 (1995-03-01), Moses et al.
patent: 5475996 (1995-12-01), Chen
patent: 5495733 (1996-03-01), Yen et al.
patent: 5527074 (1996-06-01), Yeh
patent: 5529973 (1996-06-01), Andreou et al.
patent: 5570914 (1996-11-01), Hughes
patent: 5592838 (1997-01-01), Clark et al.
patent: 5609051 (1997-03-01), Donaldson
Arnhem Erik M.
Barrett Suzanne Dino
LandOfFree
Electronic door lock 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 door lock, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic door lock will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1194491