Flexible tree saw
US4344229A · kind A · utility
Inventor
Key dates
| Filing date | Feb 6, 1980 |
| Grant date | Aug 17, 1982 |
| Priority date | — |
| Expiry date | Feb 6, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/917
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
This invention pertains to apparatus for trimming branches of trees and particularly branches high above the ground, without a pole saw, climbing the tree or using a ladder. The apparatus include spaced cutting links with sharp teeth at one end fastened upon a flexible chain. Each end of the chain is connected to a length of rope. A metal weight, sand bag, etc. attached to one of the ropes carries the flexible chain into position over the branch desired to be cut. A counter weight is also provided on one end of the flexible chain to automatically position the cutting side of the spaced cutting links in a downward facing, cutting position as the chain is pulled up onto and over the branch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.