Silo unloader
US4772173A · kind A · utility
6Cited by
27References
49Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 1986 |
| Grant date | Sep 20, 1988 |
| Priority date | — |
| Expiry date | Feb 28, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01F25/2009
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A silo unloader has an auger collector for moving material to an impeller operable to discharge material from a tower silo. A sprocket and endless chain secured to a transition assembly mounted on the impeller drives the collector around the silo wall. Wheels on the outer end of the collector and wheels on a biased arm on the inner end of the frame stabilize the unloader in the silo. A stop pivotally connected to the collector limits its backward movement by lifting the collector from the material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.