Double-cylinder pump especially for conveying cement
US4178142A · kind A · utility
27Cited by
3References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 21, 1977 |
| Grant date | Dec 11, 1979 |
| Priority date | — |
| Expiry date | Jul 21, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S417/90
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a double-cylinder pump for conveying cement, a distribution pipe is pivotally driven into alignment with each of the cylinders in turn. A wearing ring, which provides a seal between the end of the pipe and the cylinders, is mounted so as to be movable with respect to the end of the pipe so as to be able to assimilate wear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.