Rotary cutter
US4936361A · kind A · utility
11Cited by
11References
12Claims
0Family size
Inventors
Key dates
| Filing date | Aug 28, 1989 |
| Grant date | Jun 26, 1990 |
| Priority date | — |
| Expiry date | Aug 28, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T407/1966
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A rotary cutter bar for a tree felling apparatus. The bar comprises a cylindrical rod having a plurality of raised cutting teeth on its surface. Each tooth is in the form of a short curved bar. The teeth are located on a plurality of equally spaced-apart, spiral paths extending about the cylindrical surface of the rod from one end to the other. The spiral paths extend at an angle of between 30.degree. and 60.degree. to the longitudinal axis of the rod.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.