Security system

Details Security system Security system

1979-05-21

1981-02-10

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

For relays or solenoids

70278, 340147MD, E05B 4700

Patent

active

042505330

ABSTRACT:
A security system uses one electronic key that contains many key codes of the user to control several different security devices. Each security device responds to a particular key code or to more than one key code in a master lock system. The key when energized presents its entire repertoire of key codes to the security device and when the security device senses its corresponding code, access is gained. The key may or may not be electrically active. The key may also include mechanical as well as electronic access control. Each security device contains a stored code and electronically correlates the stored code and input pulse patterns of the key codes. A large number of key codes are possible without compromise of system security.

REFERENCES:
patent: 3142166 (1964-07-01), Adam et al.
patent: 3392558 (1965-10-01), Hedin et al.
patent: 3392559 (1965-10-01), Hedin et al.
patent: 3660729 (1972-05-01), James et al.
patent: 3733861 (1973-05-01), Lester
patent: 3800284 (1974-03-01), Zucker et al.
patent: 3821704 (1974-06-01), Sabsay
patent: 3857018 (1974-12-01), Stark et al.
patent: 3979647 (1976-09-01), Perron et al.
patent: 4031434 (1977-06-01), Perron et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1668218