Dispenser assembly for semi-liquid spreader
US4770348A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 2, 1983 |
| Grant date | Sep 13, 1988 |
| Priority date | — |
| Expiry date | Feb 2, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01C3/063
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A sliding gate type outlet port for a semi-liquid manure spreader is presented. The spreader with which the gate is used has an open topped tank of triangular cross section supported on a tractor drawn trailer. The power takeoff from the tractor is coupled to a shaft extending internally the length of the tank near the bottom. At the rear wall of the tank the shaft is coupled to a centrifugal pump which communicates with the tank and flings manure received therefrom in an arc away from a discharge opening in the pump housing. A hydraulically actuated flow regulating gate slides fore and aft across the pump exit port. The horizontal movement of the gate in a support structure allows an opening of constant height to be maintained while varying the area of the discharge opening, thus providing constant spread width under various settings of deposition density.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.