Valve assembly
US6182698A · kind A · utility
54Cited by
20References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 13, 1998 |
| Grant date | Feb 6, 2001 |
| Priority date | — |
| Expiry date | Apr 13, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7881
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The valve assembly has inlet and outlet members with valve elements disposed between the two members. The valve is a resilient membrane having one or more through holes. When there is no pressure differential across the valve, the hole walls in the membrane collapse inwards closing off the valve against liquid flow. At or above a threshold pressure differential across the valve, the membrane is stretched which opens up the hole or holes to allow the passage of liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.