Wireless tire pressure alarming system as directly powered from car cigarette-lighter receptacle
US6868718B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Nov 14, 2003 |
| Grant date | Mar 22, 2005 |
| Priority date | — |
| Expiry date | Nov 14, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60C23/0408
- WIPO fieldTransport
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.