Communications: electrical – Selective – Having indication or alarm
Patent
1980-12-09
1982-09-07
Waring, Alvin H.
Communications: electrical
Selective
Having indication or alarm
200 6125, B60C 2302
Patent
active
043486541
ABSTRACT:
A tire internal pressure control apparatus for tired vehicles comprising a resonance coil assembly secured to a rotational body of a vehicle and an oscillation coil assembly secured to a stationary vehicle body side, these assemblies being distant apart from each other and electromagnetically coupled with each other and operative to produce resonance phenomenon and generate a signal sensitive to the internal pressure of the tire. The signal is displayed at a driver's seat without utilizing any expensive and complex integrated circuit.
REFERENCES:
patent: 2794875 (1957-06-01), Trinca
patent: 3523451 (1970-08-01), Kohn
patent: 4180795 (1979-12-01), Matsuda et al.
Hayakawa Yoshihiro
Iwasaki Motoaki
Matsuda Akira
Yasuda Shigeo
Bridgestone Tire Company Limited
Waring Alvin H.
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