Tire pressure gauge with sensor support
US7574920B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jan 18, 2006 |
| Grant date | Aug 18, 2009 |
| Priority date | — |
| Expiry date | Jul 7, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L7/043
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pressure gauge is provided for monitoring pressure within a reservoir, such as air within a vehicle tire. The gauge is particularly configured to allow it to remain upon a valve stem of the tire even when the tire is in operation. A receiver of the gauge can be coupled to the valve stem. A valve core is preferably provided through which air can pass from a compressed air source, so that the tire can be filled without removing the gauge. A Bourdon tube is located within a sensor chamber and measures pressure within the reservoir. A shroud or other support surface is located adjacent a central opening of the Bourdon tube so that the Bourdon tube is supported sufficiently to avoid damage from forces including centrifugal forces encountered when the tire is spinning and the gauge is mounted on the valve stem of the tire.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.