Double isolation for double chamber differential pressure meter
US9310235B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2011 |
| Grant date | Apr 12, 2016 |
| Priority date | — |
| Expiry date | Mar 9, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/42
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Double isolation for double chamber differential pressure meter, where the differential pressure meter comprising an axial conduit in which there is arranged a plate provided with an orifice which can be extracted into an accessory chamber which communicates with the axial conduit through a passage, there being arranged in relation to said passage a closure formed by two closure elements which can move independently between a position in which they do not interfere with the aforementioned passage and a position in which they interrupt it such that said closure elements allow establishing a leak-tight closure between the axial conduit and the accessory chamber to extract the plate without interrupting the flow of gas or fluid through the axial conduit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.