Hydraulic tree trimmer
US5318081A · kind A · utility
Inventor
Key dates
| Filing date | Feb 23, 1993 |
| Grant date | Jun 7, 1994 |
| Priority date | — |
| Expiry date | Feb 23, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S83/928
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A high reach self centering hydraulic tree trimmer which consists of first a carriage assembly. The carriage assembly consisting of a top plate and a bottom plate. The plates are separated by spacers and secured together with a plurality of fasteners. A pair of cutting blades are contained between the top plate and the bottom plate. The blades are reciprocal of each other and each have a front end, center region, back end, outer edge, inner edge and a cutting edge extending along the inside edge. The blades are self centering about an object to be cut by pivoting independently from each other They pivot about separate pivot points in the center region of the blades. A pivot pin or bolt is used as a pivot device extending from the top plate to the bottom plate. A hydraulic cylinder is used to operate the blades. The hydraulic cylinder is pivotally attached to the back ends of the blades. This operation causes the blades to pivot independently about the pivot points resulting in the cutting surfaces closing upon each other. There is included an attachment means connected to the carriage assembly for attaching the tree trimmer to a bucket or other lifting means on a tractor or other s…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.