Structure for vehicular temperature, air pressure and vacuum meter
US6648505B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 2, 2002 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Oct 2, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K5/36
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This invention relates to an improved structure for the vehicular temperature, pressure and vacuum meters with characteristics on that the hand rod is an integrally formed design joined to the dial plate and Bourdon tube without using any bolts or screws, so it is convenient for fast assembly. The Bourdon tube and the hand rod are designed to be suitable for application of any size of the dial plate, so the Bourdon tube, the hand rod and the dial plate can be manufactured and assembled in mass production and tested beforehand to assure the required sensitivity and accuracy as long as the retaining recess on the dial plate can be fitted and locked firmly in place with the retaining protruding point on the meter housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.