Communications: electrical – Selective – Having indication or alarm
Patent
1976-03-01
1977-10-04
Caldwell, John W.
Communications: electrical
Selective
Having indication or alarm
340 57, 200 6122, 731465, B60C 2302
Patent
active
040526968
ABSTRACT:
A tire condition sensing circuit includes a ferrite element that changes from a ferromagnetic to a nonferromagnetic state in response to a temperature increase above the material Curie point. The change in state of the element affects the sensor circuit operation such that a normal inductive coupling effect is altered and an abnormal tire condition indicated.
REFERENCES:
patent: 3374460 (1968-03-01), Massoubre
patent: 3662335 (1972-05-01), Fritze
patent: 3852717 (1974-12-01), Hosaka et al.
patent: 3975706 (1976-08-01), Kato
Brunner F. W.
Caldwell John W.
Germain L. A.
Nowicki Joseph E.
The Goodyear Tire & Rubber Company
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