Fluid pressure regulator
US5899221A · kind A · utility
13Cited by
4References
13Claims
0Family size
Inventors
Key dates
| Filing date | Oct 17, 1997 |
| Grant date | May 4, 1999 |
| Priority date | — |
| Expiry date | Oct 17, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7811
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A fluid pressure regulator capable of adjustably setting a cut-off pressure between an upper and a lower limit having a two-piece valve body where the two pieces are threadably joined such that adjusting the distance between the two pieces (34, 54) of the valve body moves a piston (12) stem valve operating a high pressure port (40) towards or away from the high pressure port while not changing the distance between a spring (84) engaging the piston (12) and the piston head (14).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.