Spreading-unloading rotary sweep apparatus of the hole-forming sleeve type
US4022335A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 21, 1975 |
| Grant date | May 10, 1977 |
| Priority date | — |
| Expiry date | Jul 21, 1995 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01F25/2009
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A reversible rotary sweep has a single railless trough-less contemporaneously reversible 16" OD horizontal long auger and a depending holeformer composed of a 191/2" OD depending short auger and a surrounding 21" ID concentric sleeve. In unloading, a substantial portion of the unloading stream of silage normally flows radially inward along opposite sides of a vertical "unloading plane", extending tangentially to the unloading side of the auger. The upper end portion of the depending sleeve presents a silage overflow edge, which extends slightly below the horizontal bottom tangential plane of the long auger. Horizontally, the overflow edge is long enough to extend from the inner side edge of the unloading stream through the unloading plane to the outer side edge of the stream. As a consequence, the discharging silage, on both sides of said unloading plane, is free to cascade into the sleeve in a free-flowing substantially unobstructed condition. In the preferred embodiment, this is accomplished by making the diameter of the sleeve correspondingly larger than the diameter of the long auger. The diameter of the depending auger is likewise increased to provide a peripheral speed greate…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.