Communications: electrical – Selective – Having indication or alarm
Patent
1979-06-25
1982-05-04
Caldwell, Sr., John W.
Communications: electrical
Selective
Having indication or alarm
731465, 340 38L, B60C 2302, G08B 1900
Patent
active
043284795
ABSTRACT:
The system for detecting abnormalities in the inflation level of a tire of a vehicle includes a coil of metallic wire supported by the wheel and contactor including a switch means responsive to tire pressure for coupling and uncoupling the coil of metallic wire in response to changes in tire pressure. A detector is provided for detecting metallic masses, and this detector is supported on the ground in a position to enable passage of the vehicle wheel closely adjacent thereto.
REFERENCES:
patent: 3602884 (1971-08-01), Brumbelow
patent: 3656137 (1972-04-01), Ratz
patent: 3831161 (1974-08-01), Enabnit
patent: 3895347 (1975-07-01), Tahusagawa et al.
patent: 4067235 (1978-01-01), Markland et al.
patent: 4074227 (1978-02-01), Kalmus
Carrier Paul
Gaudu Rene
Van den Broek Philippe
Caldwell Sr. John W.
MATRA, A French Society
Nowicki Joseph E.
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