Tree trimming machine and method
US5291723A · kind A · utility
Inventor
Key dates
| Filing date | Apr 5, 1993 |
| Grant date | Mar 8, 1994 |
| Priority date | — |
| Expiry date | Apr 5, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01G3/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Methods for trimming trees with a machine that includes an elongated boom pivotally connected to the upper portion of a mast for elevational movement with the mast, an inboard rotor and an outboard rotor both rotatably mounted on the boom and a plurality of saws rotatably carried on each of the inboard and outboard rotors for rotation in a generally parallel plane are improved to prevent cuttings from accumulating in the tops of trimmed trees by rotating the inboard rotor and the saws carried thereby counterclockwise and rotating the outboard rotor and the saws carried thereby clockwise. Machines for carrying out the improved methods are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.