Alarm mark structure of a micro-differential pressure gauge
US8651043B2 · kind B2 · utility
0Cited by
8References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 11, 2011 |
| Grant date | Feb 18, 2014 |
| Priority date | — |
| Expiry date | May 4, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L19/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An alarm mark structure of a micro-differential pressure gauge includes a transparent casing. The transparent casing has at least one recess thereon. The recess is located corresponding to the range of movement of a pointer or a scale plate. At least one mark member is provided on the transparent casing. The mark member has an engaging portion. The engaging portion is inserted in the recess, such that the mark member is coupled on the transparent casing. The user can place the mark member on the recess corresponding to the numerical value on the scale plate as desired to know whether the pointer is located within a safe area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.