Yieldable disc blade assembly
US4275791A · kind A · utility
1Cited by
4References
6Claims
0Family size
Inventor
Key dates
| Filing date | Jul 27, 1979 |
| Grant date | Jun 30, 1981 |
| Priority date | — |
| Expiry date | Jul 27, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01B71/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A yieldable disc blade assembly for individual disc blades which prevents structural damage of the disc blades when such blades contact a rock or other obstruction in the field. Once the disc blade is tripped by the force of the blade encountering an obstruction, the assembly requires a decreased force to move the disc blade from the normal working position to the yielding position away from the obstruction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.