Abnormal tire condition warning system

Details Abnormal tire condition warning system Abnormal tire condition warning system

1991-05-14

1994-02-08

Swarthout, Brent

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

731465, 200 6122, 340442, B60C 2300

Patent

active

052851893

ABSTRACT:
A device is provided for sensing the condition of a pneumatic tire preferably of the type used on an automobile wherein the tire is mounted on a tire rim. The device comprises a housing, a band for mounting the housing to the tire rim, a sensor for monitoring the condition within the tire, circuitry operatively connected to the sensor for generating radio signals indicative of the tire condition, a power supply operatively connected to the circuitry, a centrifugal switch, and a receiver for receiving the radio signals. The centrifugal switch may be bypassed with the condition sensor switch to generate the radio signals when the pneumatic tire is stationary. Otherwise, the circuitry within the housing remains disabled until such time as the centrifugal switch senses a rotational frequency above a predetermined level. The circuitry is provided with a microcontroller operable between an active and a low power consumption mode wherein the battery comprising the power supply is conserved. A watchdog arrangement between the radio receiver and transmitter provides for a self-checking feature to alert an operator of the automobile of possible fault conditions such as low battery or circuit malfunction.

REFERENCES:
patent: 3938077 (1976-02-01), Nakanishi et al.
patent: 3950726 (1976-04-01), Fujikawa et al.
patent: 4048614 (1977-09-01), Shumway
patent: 4075603 (1978-02-01), Snyder et al.
patent: 4090172 (1978-05-01), Vesnic
patent: 4117452 (1978-09-01), Snyder et al.
patent: 4131877 (1978-12-01), Stewart et al.
patent: 4160234 (1979-07-01), Karbo et al.
patent: 4210898 (1980-07-01), Betts
patent: 4237728 (1980-12-01), Betts et al.
patent: 4286253 (1981-08-01), Nagy
patent: 4311985 (1982-01-01), Gee et al.
patent: 4384482 (1983-05-01), Snyder
patent: 4455682 (1984-06-01), Masters
patent: 4507956 (1985-04-01), Schlesinger et al.
patent: 4510484 (1985-04-01), Snyder
patent: 4511869 (1985-04-01), Snyder et al.
patent: 4531112 (1985-07-01), Thomas
patent: 4695823 (1987-09-01), Vernon
patent: 4909074 (1990-03-01), Gerresheim et al.
patent: 4970491 (1990-11-01), Saint et al.
patent: 5001457 (1991-03-01), Wang
patent: 5061917 (1991-10-01), Higgs et al.
patent: 5109213 (1992-04-01), Williams

Affiliated with

Also associated with

Rating

Abnormal tire condition warning system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Abnormal tire condition warning system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Abnormal tire condition warning system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-701005