Patent · US Expired

Straw chopper and spreader attachment for a combine harvester

US4218022A · kind A · utility

17Cited by
5References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 28, 1979
Grant dateAug 19, 1980
Priority date
Expiry dateMar 28, 1999

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA01F12/40
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

A straw chopping and spreading device consisting of a rotary chopper, mounted in a housing assembly and a spreader assembly 16 through which chopped straw passes out of the housing assembly. The spreader assembly consists of a pair of converging plates which form a converging nozzle, a series of adjustable spreader plates for controlling the width of spread and an adjustable deflector for adjusting the angle at which chopped straw is deflected toward the ground.

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