Control valve and hydraulic system employing same
US4557180A · kind A · utility
22Cited by
5References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 28, 1983 |
| Grant date | Dec 10, 1985 |
| Priority date | — |
| Expiry date | Mar 28, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2544
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The valve disclosed herein functions, in one sense, as a flow matching device and, in another sense, as a reciprocative check valve. By employing the valve, a hydraulic system may be implemented in which filling and emptying of a variable volume load, such as a hydraulic piston may be accomplished through a single check valve structure at controlled flow rates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.