Low-flow valve
US7503348B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 2006 |
| Grant date | Mar 17, 2009 |
| Priority date | — |
| Expiry date | Nov 28, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86718
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A low-flow diaphragm valve has a flexible diaphragm that cooperates with a portion of a valve body to open and close the valve. The diaphragm may have a dome for seating in a passage between the inlet and outlet of the valve. The diaphragm may have one or more ribs for seating against other portions of the body located around the passage. The valve body may include openings or interruptions to permit fluid to flow through the valve, as well as to permit relatively small particulate matter to flow through even though the ribs contact the body such that the ribs and openings affect flow and may perform screening functions to block or restrict particulate matter of relatively large size from flowing to the passage between the dome and the valve body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.