Automatic pressure regulator
US4092998A · kind A · utility
29Cited by
4References
14Claims
0Family size
Inventor
Key dates
| Filing date | Jul 12, 1977 |
| Grant date | Jun 6, 1978 |
| Priority date | — |
| Expiry date | Jul 12, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7834
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An automatic pressure regulator of the rolling diaphragm type requiring but one single rolling diaphragm. The diaphragm is of the deep convolution type. The rolling wall of the diaphragm controls the effective cross-sectional area of an orifice means which, in turn, effects the regulation of pressure. The force created by the high pressure acts against a spring tending to move the rolling wall of the rolling diaphragm to the orifice closing position thereof. The effective area of the rolling wall of the rolling diaphragm is variable to compensate for variations of the force of the spring resulting from changes of its length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.