Gas fill system in a pressure transmitter
US6609427B1 · kind B1 · utility
37Cited by
121References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2000 |
| Grant date | Aug 26, 2003 |
| Priority date | — |
| Expiry date | Apr 12, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49002
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pressure transmitter with a hermetically sealed housing surrounding a cavity that is filled with a gas that is free of integrated circuit contaminants. A sensor circuit including an integrated circuit is placed in the cavity and a gas fill port on the housing is sealed. The sensor circuit is electrically adjustable from outside the pressure transmitter and the integrated circuit is protected from contaminated atmospheres outside the pressure transmitter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.