Formed metal diaphragm with improved cycle life
US5739434A · kind A · utility
2Cited by
4References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 23, 1996 |
| Grant date | Apr 14, 1998 |
| Priority date | — |
| Expiry date | Oct 23, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D16/163
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A formed metal diaphragm for use in fluid pressure regulators includes a dome-shaped central portion and a convoluted shaped flexible area. The convoluted shaped flexible area includes a series of radially spaced elliptically shaped impressions in the diaphragm surface. The major elliptic axis of each impression is aligned with a radius emanating from the center of the diaphragm. The minor ellipse axis of the impressions is located on a concentric axis outward from the center of the diaphragm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.