Communications: electrical – Selective – Having indication or alarm
Patent
1985-10-24
1987-09-15
Rowland, James L.
Communications: electrical
Selective
Having indication or alarm
200 6125, 200 83J, 731468, 73745, B60C 2302
Patent
active
046942734
ABSTRACT:
The device is applied to the wheel of a motor vehicle and includes a component that is sensitive to the pressure inside the tire and has a conductive, sliding element. When this element reaches the extreme limits of its travel it closes an electrical contact and activates a radio transmitter whose signals, picked up by a receiver located in the passenger compartment, activate a visual and/or acoustic alarm.
REFERENCES:
patent: 3430196 (1969-02-01), Dalton
patent: 3588815 (1971-06-01), Koonce
patent: 3693149 (1972-09-01), Johnston
patent: 4075603 (1978-02-01), Snyder et al.
patent: 4090172 (1978-05-01), Vesnic
patent: 4255630 (1981-03-01), Hire et al.
patent: 4335283 (1982-06-01), Migrin
Rowland James L.
Tumm Brian R.
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