Pressurized fluid control circuit
US3968811A · kind A · utility
6Cited by
2References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 9, 1975 |
| Grant date | Jul 13, 1976 |
| Priority date | — |
| Expiry date | May 9, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2572
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention is directed to a supply circuit for a hydraulic jack employing two pumps in which a valve is positioned in a pipe which is branched to the delivery pipe of the first pump and is controlled by two jacks supplied by the fluid delivered by the second pump. A constrictor is positioned in the supply system for one of the jacks and another constrictor is placed in the discharge system for the two jacks with the invention being particularly applicable to achieving a stable control circuit for the load relief of the first pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.