Knock-on sweep structure having mounting side surfaces diverging at different rates in the wedging direction
US6814151B1 · kind B1 · utility
18Cited by
10References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2003 |
| Grant date | Nov 9, 2004 |
| Priority date | — |
| Expiry date | Apr 30, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01B35/225
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Knock-on sweep structure includes a wedge adapter having opposite sides with upper and lower surfaces that engage the wrap-around portion of the sweep stem. The upper and lower surfaces diverge at different rates from a narrow end to a wide end to improve sweep-adapter contact. In one embodiment, the upper and lower surfaces on each side are planar and define a compound angle. The differential rate of divergence assures early contact between the adapter and stem at a plurality of spaced locations for improved retention and more reliable sweep positioning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.