Wing back implement
US4502546A · kind A · utility
9Cited by
7References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 26, 1983 |
| Grant date | Mar 5, 1985 |
| Priority date | — |
| Expiry date | Sep 26, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01B73/067
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A rearwardly folding wing-back implement has a V-shaped frame configuration comprising two wing sections having the apex of the V-shape located at a pivot point where the wing sections are joined. A towing linkage minimizes the pulling forces being applied to the wing sections other than those pulling forces applied in the direction of movement of the implement. The implement may be pivoted rearwardly about the pivot point when transport is desired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.