Welded header for pressure transmitter
US7458275B2 · kind B2 · utility
14Cited by
20References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2007 |
| Grant date | Dec 2, 2008 |
| Priority date | — |
| Expiry date | Mar 15, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L19/0645
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pressure transmitter comprises a metal wall separating a process pressure chamber from an electronics compartment. The metal wall has a stepped bore with a bore shelf facing the process pressure chamber. A metal header has a stepped outer rim with a header shelf that contacts the bore shelf. The metal header includes at least one electrical feedthrough with a glass-to-metal seal adjacent the stepped outer rim. A welded seal seals the stepped outer rim to the stepped bore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.