Device for monitoring the air-pressure in pneumatic tires fitted on vehicle wheels
US5602524A · kind A · utility
Inventors
Key dates
| Filing date | Nov 23, 1993 |
| Grant date | Feb 11, 1997 |
| Priority date | — |
| Expiry date | Nov 23, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08C19/28
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A device for monitoring the air pressure in pneumatic tires comprises a transmitting device fitted to each wheel of a vehicle and rotating with it, and a receiver which is built into the vehicle or accommodated in a separate housing. The transmitting device mounted in the wheel comprises a pressure gauge for measuring the tire pressure, a transmitter and a signal generator which generates an identification signal unique to each transmitter and transmitted before or after the pressure signal. The receiver processes received signals only when the identification signal received matches a reference identification signal stored in the receiver. This facilitates reliable operation of the monitoring device and prevents false alarms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.