Manure handling system
US4140443A · kind A · utility
Inventor
Key dates
| Filing date | Aug 31, 1977 |
| Grant date | Feb 20, 1979 |
| Priority date | — |
| Expiry date | Aug 31, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S417/90
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A handling system to move material and particularly manure from a collection area to a holding or storage station. The manure handling system includes a manure pump assembly having a hopper mounted over a pump housing which defines a triangularly shaped pumping chamber. An outlet valve located at the end of the chamber is urged closed by a rubber spring internally connected in the chamber. A triangular ram or piston shaped to conform to the shape of the chamber reciprocates in the pumping chamber to push manure delivered from the hopper past the outlet valve to a discharge pipe leading to a holding station. Means are provided for heating the discharge pipe and the pumping chamber, thus to permit year-round and above-ground use of the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.