Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1998-05-11
1999-10-19
Mullen, Thomas
Communications: electrical
Condition responsive indicating system
Specific condition
180272, 340575, G08B 2300
Patent
active
059696168
ABSTRACT:
A driver alarm system for alerting the driver to conditions of fatigue and drowsiness. The alarm system has a power source, an on-off switch, signaling device, and a depressible control button. A flexible jacket for installation on the steering control of a vehicle which transmits pressure of the driver's grip to bear on the depressible control button to deactivate the signaling device. In one embodiment, the pressure transmitter is a pneumatic or hydraulic element inside the jacket. In another embodiment, the pressure transmitter is a spring-biased element. In still another embodiment, the pressure transmitting element comprises a center conductor surrounded by a compressible conductive element, providing variable resistance. Current is provided to an electromagnet when pressure on the jacket decreases resistance. The electromagnet biases a magnetic control button to activate and deactivate the signaling device in response to pressure on the jacket.
REFERENCES:
patent: 2575926 (1951-11-01), Murray
patent: 4617559 (1986-10-01), Slansky
patent: 5453929 (1995-09-01), Stove
patent: 5559495 (1996-09-01), Cochran
patent: 5585785 (1996-12-01), Gwin et al.
McGlynn Joseph H.
Mullen Thomas
LandOfFree
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