Patent · US Expired

Felling head with swinging cutter bar

US4848425A · kind A · utility

4Cited by
6References
5Claims
0Family size

Inventors

Key dates

Filing dateJul 15, 1988
Grant dateJul 18, 1989
Priority date
Expiry dateJul 15, 2008

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S83/928
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

A tree felling head has a frame with two laterally spaced-apart support means at the bottom of the frame. A cutting unit is pivotally mounted at one end on one of the support means while the other end of the cutting unit is supported on the other support means. The cutting unit carries a rotatable cutting bar. Means pivot the cutting unit, while its other end is guided on the other support means, and while its cutting bar is rotated, to move the cutting bar against a tree and to cut through it. The cutting unit also has an accumulating plate located immediately behind the cutting bar for accumulating cut trees thereon.

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