Floating diaphragm apparatus
US4852466A · kind A · utility
13Cited by
7References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 15, 1987 |
| Grant date | Aug 1, 1989 |
| Priority date | — |
| Expiry date | May 15, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L7/082
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Floating the diaphragm portion of a diaphragm sensor in the pressurizing fluid frees the diaphragm from exterior housing forces, and makes overall manufacture and replacement inexpensive. A diaphragm can be protected from exterior stress by interspersing a channel between the diaphragm edge and the closure and support structure of an enclosing housing. By extending the channel and incorporating an adequate seal, the diaphragm structure may be made replaceable. The replaceable diaphragm further allows use of a smaller amount of costly materials, and makes repair less costly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.