Self-cleaning pressure relief and bypass valve, dispensing apparatus and method
US5984148A · kind A · utility
10Cited by
9References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1998 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | Sep 22, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/4245
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Liquid dispensing apparatus and methods for dispensing pressurized liquid including the use of a pressure relief and bypass valve. The liquid dispensing apparatus may include a pump operatively connected to a liquid reservoir and one or more liquid dispensers. A pressure relief and bypass valve is generally connected between an outlet of the pump and the liquid dispenser for providing both a pressure relief function and a bypass cleaning or flushing function. The bypass function helps prevent contaminants from lodging or accumulating within the valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.