Spout control system
US4401403A · kind A · utility
10Cited by
13References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 13, 1981 |
| Grant date | Aug 30, 1983 |
| Priority date | — |
| Expiry date | Jul 13, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D67/005
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An automatic control system operates to control the spout position on a forage harvester as a function of the position of a crop-receiving wagon and as a function of the relative spout-wagon position. The system includes wagon and spout angle sensors and a variable gain error amplifier for generating an error signal representing the difference therebetween. The gain of the error amplifier is modified according to changes in the wagon position to provide a wagon position dependent amount of free play in the spout-wagon relative position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.