Valve with increased inlet flow
US6536467B2 · kind B2 · utility
16Cited by
20References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2000 |
| Grant date | Mar 25, 2003 |
| Priority date | — |
| Expiry date | Dec 5, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7937
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A check valve having a profiled entrance that reduces net positive suction head for piston and plunger pumps. The valve inlet surface has a cross-section that may include a curved portion that corresponds to a portion of a cone, circle, ellipse, hyperbola, or parabola.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.