Pressure gauge flushing system
US3990311A · kind A · utility
0Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 13, 1976 |
| Grant date | Nov 9, 1976 |
| Priority date | — |
| Expiry date | Feb 13, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L7/043
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pressure gauge having two coaxial helical bourdon tubes interconnected at the pointer ends and coupled to the pointer, with an inlet line for each tube permitting fluid flow through both tubes. A valving arrangement for operation as a pressure gauge by blocking one inlet line retaining the fluid under pressure in the tubes, and for flushing the tubes by opening both inlet lines and moving a fluid through the tubes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.