Communications: electrical – Selective – Having indication or alarm
Patent
1987-05-18
1989-02-07
Orsino, Joseph A.
Communications: electrical
Selective
Having indication or alarm
70DIG49, 307 10AT, 340542, B60R 2500
Patent
active
048034606
ABSTRACT:
An anti-theft system for sensing the removal of an ignition lock assembly from its housing utilizing a grounding switch within the housing that is biased to disconnect an electrical path when the ignition switch is forcibly removed. An associated circuit provides continuous monitoring of the conduction path within the housing when the ignition switch it turned off.
REFERENCES:
patent: 3629818 (1971-12-01), Yokohama et al.
patent: 3654600 (1972-04-01), Yamamoto
patent: 4233595 (1980-11-01), Landkammer
patent: 4310835 (1982-11-01), Sefton
patent: 4427967 (1984-01-01), Maiocco
patent: 4449605 (1984-05-01), Read
Fletcher Sidney R.
Rhee Dennis W.
Ford Motor Company
Godwin Jr. Paul K.
Hofsass Jeffery A.
Orsino Joseph A.
Sadler Clifford L.
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