Electronic lock system

Details Electronic lock system Electronic lock system

1977-11-07

1979-12-11

Bonck, Rodney H.

Locks

Operating mechanism

Using a powered device

70219, 70223, E05B 4902

Patent

active

041776577

ABSTRACT:
An electronic lock system senses codes on a key by means of opto-electronic, magnetic or other electrical means and compares the key code to a code stored internally in a memory. When the key code is equal to its respective stored code the lock activates an electrical clutch operated bolt, and may also change the internal code to a new code.
This invention relates to electronic locks, and is more particularly directed to the provision of an electronic lock which can be operated by a key having a code in the form of an electric parameter or optical parameter thereon.

REFERENCES:
patent: 1005496 (1911-10-01), Armbruster
patent: 3403380 (1968-09-01), Welch
patent: 3475932 (1969-11-01), Germanton
patent: 3641396 (1972-02-01), Kossen et al.
patent: 3673569 (1972-06-01), Hedin et al.
patent: 3751718 (1973-08-01), Hanchett
patent: 3797936 (1974-03-01), Dimitriadis
patent: 3845362 (1974-10-01), Roe
patent: 3872435 (1975-03-01), Cestaro
patent: 3896345 (1975-07-01), Zink
patent: 3922896 (1975-12-01), Kagoura
patent: 3926021 (1975-12-01), Genest et al.
patent: 3939679 (1976-02-01), Barker et al.
patent: 4019355 (1977-04-01), Germanton

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