Self-operated pressure transmission type of pressure reducing valve with corrugated pipe
US8356624B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Sep 2, 2010 |
| Grant date | Jan 22, 2013 |
| Priority date | — |
| Expiry date | Sep 10, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7805
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A self-operated pressure transmission type of pressure reducing valve with corrugated pipe has an upper cover, a cylinder, a lower cover, a sealing board, a sealing sleeve, a first and second nut, and an upper valve rod. The pressure reducing valve needs no external driving force. It only needs a power-saving product which can automatically adjust the pressure according to the pressure change of the adjusted object. It has multiple functions such as measuring, implementing and controlling pressure, and it solves the problems in the operation process of the conventional pressure reducing valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.