Communications: electrical – Selective – Having indication or alarm
Patent
1975-07-08
1977-02-01
Waring, Alvin H.
Communications: electrical
Selective
Having indication or alarm
200 6125, B60C 2302
Patent
active
040064492
ABSTRACT:
An information detector for a tire wheel includes a rotating coil extending about the circumference of the wheel, and two stationary coils inductively coupled to one another through the rotating coil. A parameter of the rotating coil is modified by tire pressure or the like to affect the coupling between the stationary coils. In one embodiment, the resistance of the rotating coil is modified and in another embodiment, the inductance of the rotating coils is modified.
REFERENCES:
patent: 2274557 (1942-02-01), Morgan et al.
patent: 3662335 (1972-05-01), Fritze
patent: 3665387 (1972-05-01), Enabnit
Hishikawa Shunichi
Sumi Momoki
Waring Alvin H.
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