Height control for combine headers
US4009555A · kind A · utility
12Cited by
1References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 26, 1976 |
| Grant date | Mar 1, 1977 |
| Priority date | — |
| Expiry date | Feb 26, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S56/15
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An automatic height control for the header of a combine in which the elevation of the header relative to the ground is varied by hydraulic means under the control of the system using the presence or absence of light to lower or raise the header, the light being regulated by feeler members engageable with the ground and being responsive to changes in ground contour.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.