Patent · US Expired

Method and apparatus for reaping level control

US4663712A · kind A · utility

17Cited by
11References
2Claims
0Family size

Assignee

Inventor

Key dates

Filing dateFeb 23, 1984
Grant dateMay 5, 1987
Priority date—
Expiry dateFeb 23, 2004

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S56/15
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

A method of controlling reaping level comprising the steps of averaging the lengths measured by a noncontact distance sensor, comparing the preset target data with the measured and averaged data, computing the difference therebetween and raising or lowering a reaping section in accordance with the amount of the difference. When averaging the measured data, abnormal data which cause erroneous functions may be omitted prior to averaging.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.