发明授权
- 专利标题: Flexible tree saw
- 专利标题(中): 灵活的树锯
-
申请号: US119167申请日: 1980-02-06
-
公开(公告)号: US4344229A公开(公告)日: 1982-08-17
- 发明人: Robert M. Johnson
- 申请人: Robert M. Johnson
- 专利权人: Johnson Robert M
- 当前专利权人: Johnson Robert M
- 主分类号: A01G3/08
- IPC分类号: A01G3/08 ; B23D57/02 ; B27B21/00 ; B27B33/14
摘要:
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.
公开/授权文献
- USD434798S Writing instrument 公开/授权日:2000-12-05