Crop harvester having conditioning rolls
US8220234B2 · kind B2 · utility
4Cited by
17References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 27, 2011 |
| Grant date | Jul 17, 2012 |
| Priority date | — |
| Expiry date | Jul 27, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D43/10
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The conditioning rolls of a crop harvester have intermeshing metal ribs arranged in a herringbone pattern, each rib comprising a pair of end-to-end segments that converge spirally from opposite ends of the roll to a centermost apex. Alternative embodiments provide a single pair of metal herringbone rolls, two pairs of metal herringbone rolls, or a front pair of metal herringbone rolls and a rear pair of compressible surface herringbone rolls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.