Patent ID: 6868718
Filing Date: 2005-03-22
Classification: B60C

Abstract:
1. A wireless tire pressure alarming system comprising: a plurality of tire pressure transmitters each attached to each car wheel for sensing a tire pressure in each wheel tire and operatively transmitting a tire pressure signal remotely upon sensing a low tire pressure below a predetermined safety pressure value; and a tire pressure receiver formed in a car and connected with a plurality of alarms each alarm corresponding to one car wheel among all car wheels, whereby upon receiving of a low tire pressure signal sent from one said transmitter corresponding to one said car wheel causing low tire pressure, said receiver will actuate one said alarm corresponding to said car wheel having low tire pressure for warning a car driver for enhancing his or her driving safety; the improvement which comprises: said receiver including a plug plugged in a car cigarette-lighter receptacle for powering said receiver for operatively receiving the signal as sent from said transmitter; said receiver including: a receiver body; said plug protruding forwardly from the receiver body and operatively plugged in said car cigarette-lighter receptacle when removing the cigarette lighter from the receptacle for connecting power supply from a car battery through the receptacle; four LEDs respectively disposed on a front left portion, a front right portion, a rear left portion and a rear right portion corresponding to four car wheels respectively disposed on four portions of the car for optically warning the car wheel causing low tire pressure; a buzzer formed on said receiver body for sounding an audio alarm for the car wheel having low tire pressure; and a plurality of selectors each operatively selecting an identification code of one said transmitter attached to one said car wheel to which said transmitter is attached.