Electrical transmission or interconnection systems – Vehicle mounted systems – Automobile
Patent
1990-11-01
1993-04-13
Gaffin, Jeffrey A.
Electrical transmission or interconnection systems
Vehicle mounted systems
Automobile
70276, 180287, 307 106, 34082531, E05B 1720, E05B 4700, B60R 2504
Patent
active
052025802
ABSTRACT:
A lock for the ignition circuit of an automobile is disclosed. The lock includes a Hall effect sensor element which is activated by a control magnet on the cylinder member of the lock so that when the cylinder is rotated by a key to its start position the Hall effect sensor element is activated. The activation of the sensor element provides one of several starting criteria to an ignition circuit for starting an automobile. An anti-tampering magnet on the cylinder member lies directly under the sensor element in the off position and biases the Hall effect sensor element to its off position so hard that other magnetic forces induced from the exterior of the lock cannot overcome the bias and activate the sensor.
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Briggs & Stratton
Elms Richard T.
Gaffin Jeffrey A.
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