Grain bag unloader
US7997849B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Apr 21, 2008 |
| Grant date | Aug 16, 2011 |
| Priority date | — |
| Expiry date | Apr 28, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01F25/20
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A grain bag unloader is described for unloading grain from a grain bag wherein the unloader is moved rearwardly and operated by a tractor. The grain bag unloader includes a wheeled frame having a grain hopper at the rearward end thereof with a transversely extending unloading auger which is adapted to be inserted into the lower end of a field grain bag and which conveys grain from the grain bag into the grain hopper. The grain bag unloader also includes a discharge auger which extends upwardly and laterally from the grain hopper. The grain bag unloader also includes a grain bag winder tube. The grain unloader includes a first clutch which is able to disengage the operation of the unloading auger while permitting the discharge auger to continue to operate. The grain bag unloader also includes a second clutch which is designed to disengage the bag winder tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.