Apparatus for harvesting a tree
US3994325A · kind A · utility
11Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1975 |
| Grant date | Nov 30, 1976 |
| Priority date | — |
| Expiry date | Nov 17, 1995 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01G23/08
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In an improved method and apparatus for harvesting a tree, the pressure exerted on the tree by a grapple assembly is at a first preselected value during shearing of the tree trunk and positioning the severed tree for further processing. The pressure exerted on the tree by the grapple assembly is thereafter reduced to a second preselected value and the tree is further processed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.