Tire pressure sensor
US6817235B2 · kind B2 · utility
19Cited by
3References
24Claims
0Family size
Inventor
Key dates
| Filing date | Oct 7, 2003 |
| Grant date | Nov 16, 2004 |
| Priority date | — |
| Expiry date | Oct 26, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60C23/0496
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A tire pressure monitoring and reporting instrument is mounted within a valve stem and has a valve cap. A single circuit can be provided having an LED, a sounder, a battery and a switch. A dual stage system, or a continuously variable system can be implemented by using a dual stage pressure switch or a continuously variable pressure switch. The battery may be housed within the cap and electrical contacts between the cap and stem allow discontinuation of the circuit or changing of the battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.