Electronic door lock

Details Electronic door lock Electronic door lock

1988-05-11

1990-02-13

Wolfe, Robert L.

Locks

Operating mechanism

Using a powered device

70311, 70332, E05B 4700

Patent

active

048995622

ABSTRACT:
An electronic door lock is provided with a single control knob used for entering a predetermined combination through manipulation of the knob in a first arc of rotation, the code being entered by pushing the dial inwardly to bring a push pad into contact with individual ones of an arcuate array of electrical switches provided on a printed circuit board within the lock housing, the release of the door locking bolt being accomplished after entry of the predetermined code by further manipulation of the control knob through remaining portions of knob rotation which are unavailable until after entry of the predetermined code.

REFERENCES:
patent: 1353257 (1920-09-01), Mample
patent: 2079702 (1937-05-01), Diesel
patent: 2775114 (1956-12-01), Lee
patent: 3045466 (1962-07-01), Herlong
patent: 3339382 (1967-09-01), Miller et al.
patent: 3376721 (1968-04-01), Levine
patent: 3559430 (1971-02-01), Waller
patent: 3702070 (1972-11-01), Gartner
patent: 3758734 (1973-09-01), Gartner
patent: 3968667 (1976-07-01), Gartner
patent: 3980844 (1976-09-01), Bianco
patent: 4038846 (1977-08-01), Klann
patent: 4106316 (1978-08-01), Tippin
patent: 4148092 (1979-04-01), Martin
patent: 4328689 (1982-05-01), Keller et al.
patent: 4745784 (1988-05-01), Gartner

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