Check valve with separate spherical spring guide
US7950373B2 · kind B2 · utility
0Cited by
19References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2008 |
| Grant date | May 31, 2011 |
| Priority date | — |
| Expiry date | Jul 21, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7925
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A check valve for use with a pump is disclosed. The check valve may have a body at least partially defining a central bore with an open end and a closed end, and a spring guide separate from the body and disposed within the closed end of the central bore. The check valve may also have a spring located within the central bore and having a first end operatively engaged with the spring guide, and a valve element operatively engaged with a second end of the spring and being movable by a pressure differential to compress the spring. The spring guide may be moveable relative to the body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.