Material spreader
US4013224A · kind A · utility
6Cited by
12References
34Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 22, 1975 |
| Grant date | Mar 22, 1977 |
| Priority date | — |
| Expiry date | Sep 22, 1995 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01C23/003
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A liquid manure spreader having a tank for carrying liquid manure. An auger assembly driven by a power takeoff from a tractor delivers the manure to a pump mounted on the back of the tank. The pump discharges the material through a spreading structure. A valve operated by a hydraulic cylinder controls the flow of manure from the pump to the spreading structure. The spreading structure has a horizontal plate that directs the material in a wide, relatively low spread pattern onto the ground. The tank has a fill hole equipped with a safety grid assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.