Draft arm extension stop
US4221399A · kind A · utility
6Cited by
3References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 17, 1978 |
| Grant date | Sep 9, 1980 |
| Priority date | — |
| Expiry date | Nov 17, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01B59/063
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A lower draft arm extension link stop in a tubular member of a lower draft arm of a three-point hitch for engaging the extension link in its extended position. The extension link is provided with a relief portion which clears the stop when the link is angular inclined so that it can be withdrawn from the tubular member. The tubular member includes a latch, axially aligned with the stop, for holding the link in its contracted position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.