Measuring and testing – Tire – tread or roadway – Tire inflation testing installation
Patent
1987-03-19
1988-05-10
Woodiel, Donald O.
Measuring and testing
Tire, tread or roadway
Tire inflation testing installation
340 58, B60C 2302
Patent
active
047427124
ABSTRACT:
A system for monitoring air pressure of a vehicle tire is disclosed which comprises; a pressure switch provided on a tire wheel side, the pressure switch being turned on when the air pressure of the vehicle tire assigned to said pressure switch becomes lower than a predetermined value; a vibration producing device for producing vibration at a predetermined natural frequency when the pressure switch is turned on, the vibration thus produced being transmitted to an axle shaft supporting said tire wheel; and a vibration detecting for detecting the vibration. The vibration detecting means is provided on the axle shaft side.
REFERENCES:
patent: 4384482 (1983-05-01), Snyder
patent: 4532493 (1985-07-01), Sibeud
Kabushiki Kaisha Tokai Rika Denki Seisakusho
Woodiel Donald O.
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