Rotary disc valve
US4006753A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1975 |
| Grant date | Feb 8, 1977 |
| Priority date | — |
| Expiry date | Jul 30, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87692
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A valve system for selective control of flow of fluids from plural sources to a common conduit. Plural valves, are aligned along the conduit at different distances from a system axis. A cam array serves to selectively force the valves against a diaphragm to close off ports leading to the conduit upon rotation about the system axis. The invention is particularly suitable for use with a pressurized ink reservoir connected to one port, an ink solvent to a second port, and a drying gas to a third port. The valve system then may be rotated sequentially for initiating an ink operation, cleansing with the ink solvent, and drying with the gas without necessitating a disassembly of the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.