Distributing valves for viscous materials
US4019839A · kind A · utility
7Cited by
4References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 27, 1975 |
| Grant date | Apr 26, 1977 |
| Priority date | — |
| Expiry date | Mar 27, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S417/90
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A distributing valve for twin cylinder pumps for pumping viscous materials such as concrete, has an oscillating body with closing elements, for the suction orifices and pressure orifices for the pump cylinders mounted on a shaft disposed outside the part of the pump casing acted upon by the pump pressure. The closing elements are arranged on the same side of the rotating shaft and a pair of closing elements is provided either for the suction orifices or for the pressure orifices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.