Wireless tire pressure alarming system as directly powered...

Details Wireless tire pressure alarming system as directly powered... Wireless tire pressure alarming system as directly powered...

2005-03-22

2005-03-22

Lefkowitz, Edward (Department: 2855)

Measuring and testing

Tire, tread or roadway

C073S146200, C073S146500, C073S078000, C024S1320AA, C116S03400R, C340S384100, C340S442000

Reexamination Certificate

active

06868718

ABSTRACT:
A wireless tire pressure alarming system includes a tire pressure sensor & transmitter attached to each car wheel for sensing the tire pressure in each car wheel and for remotely sending the tire pressure signal from each car wheel; and a receiver having a plug plugged in a car cigarette-lighter receptacle to be powered by the car battery through such a cigarette-lighter receptacle and for receiving the tire pressure signal from the car wheel; whereby upon detection of a tire pressure reduced below the pre-determined safety pressure value of each car wheel, an alarm will be actuated either by an optical alarm signal or a sound alarm signal for warning the car driver for inflating his or her car wheel for enhancing driving safety.

REFERENCES:
patent: 4220907 (1980-09-01), Pappas et al.
patent: 4319220 (1982-03-01), Pappas et al.
patent: 4943798 (1990-07-01), Wayne
patent: 6571481 (2003-06-01), Weiss
patent: 6705360 (2004-03-01), Bonzer

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