Valve
US4520846A · kind A · utility
11Cited by
5References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 15, 1983 |
| Grant date | Jun 4, 1985 |
| Priority date | — |
| Expiry date | Aug 15, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86799
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A valve, primarily to control hydraulic flow, has a mounting tube ending in a disc spaced from the end of the tube to allow a flow passage. A polyjet sleeve, with multiple orifices through its wall, is axially slidable along the exterior of the mounting tube and on the exterior of the disc. An actuator, preferably hydraulic, moves the polyjet sleeve across the flow passage to vary the effective size of the flow passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.