Pressure sensor, transmitter, and tire condition monitoring apparatus
US6966227B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2003 |
| Grant date | Nov 22, 2005 |
| Priority date | — |
| Expiry date | Dec 10, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L9/0075
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A tire condition monitoring apparatus has a pressure sensor that measures air pressure in a tire of a vehicle. The apparatus also has a transmitter that transmits pressure data measured by the pressure sensor, and a receiver that receives and processes data transmitted by the transmitter. The pressure sensor has a diaphragm exposed to air of the tire, and metallic material covering the diaphragm. The transmitter has a power supply circuit and a connecting member. The power supply circuit supplies electricity for activating the transmitter. The connecting member connects the power supply circuit with the metallic material such that the potential of the metallic material is the same as the potential of the power supply circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.