Dispensing valve with back flow protection
US7533684B1 · kind B1 · utility
3Cited by
21References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2005 |
| Grant date | May 19, 2009 |
| Priority date | — |
| Expiry date | Apr 24, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87684
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A dispensing valve assembly with a housing having a plurality of inlet passageways connectable at a respective upstream end to a respective supply source. Each inlet passageway is in communication with a pressure responsive valve element. The valve element is biased to abut a discharge valve seat in a closed position about an upstream end of an outlet passage. The valve element is moveable to an open position when pressure in its respective inlet passageway exceeds a predetermined value. Each outlet passage is in fluid communication with a common dispensing outlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.