Method and arrangement to accomplish a one-way flow
US6810914B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 1, 2002 |
| Grant date | Nov 2, 2004 |
| Priority date | — |
| Expiry date | Jul 1, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7889
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method and arrangement to accomplish a self-acting function of one way flow in a conduit with minimal flow resistance is disclosed. A one way valve, which in an unaffected position blocks the conduit, is of a flexible, elastic material, and is arranged with a tight fit in connection to the inner surface of the conduit and is partially fixed along the inner circumference of the conduit by means of one or more parts having a surface with longitudinal/circumferential extension in the conduit. In case of pressure of a medium in one direction of the conduit, any flow will be blocked due to the fact that the pressure of the medium will press the non fixed parts of the one way valve against the inner surface of the conduit, whereby a completely tight element is formed. In addition, the non fixed parts of the one way valve collapse in case of pressure of the medium directed in the opposite direction, whereby a flow will be let through without any substantial resistance depending on the magnitude of the pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.