Tree pusher
US6604562B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Jun 17, 2002 |
| Grant date | Aug 12, 2003 |
| Priority date | — |
| Expiry date | Jun 17, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01G23/091
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A tree pusher for safely felling trees. The tree pusher controls and determines the direction in which the tree falls, using a base, a frame, a detachable head which engages the tree trunk, and an extendable screw-type trailer jack that is repairable/replaceable during operation and capable of bearing the weight of a large tree, for urging the frame and the head against the trunk of the tree. For use on uneven ground, the tree pusher is provided with a base extension. A chain is used to connect the base of the tree pusher to the trunk of the tree, to prevent movement of the base when the jack is activated. The tree pusher can be readily moved to the job site, and can be used on any type of terrain, including hard surfaces, and for any type of tree, including trees with rotten wood.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.