Valve for liquid marking systems
US4602662A · kind A · utility
27Cited by
17References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 3, 1985 |
| Grant date | Jul 29, 1986 |
| Priority date | — |
| Expiry date | Oct 3, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7374
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A valve is disclosed suitable for use in ink marking systems. The valve has an output port, a supply port, and a control port. The control port communicates with a chamber disposed above a flexible diaphragm while the output port communicates with a reservoir to be periodically supplied with fluid. The diaphragm flexes between an open position permitting the supply port to communicate with the output port and a closed position blocking such communication as a function of the pressure differential across the diaphragm created by pressure changes at the central port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.