Power operated brush rake
US4300337A · kind A · utility
5Cited by
7References
6Claims
0Family size
Inventor
Key dates
| Filing date | Mar 10, 1980 |
| Grant date | Nov 17, 1981 |
| Priority date | — |
| Expiry date | Mar 10, 2000 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D78/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A rake for attachment to a tractor and operation by the tractor hydraulic system. Rake tines are carried on an endless chain by pivotally mounted brackets along upper and lower runs with counterbalance means providing pivotal movement of the tines between folded and extended positions while traveling along the upper and lower runs, respectively. The rake may be moved to extend laterally outward from the tractor for raking between trees, and the like. The mounting and guide means for the chain and teeth-carrying brackets provide a sturdy and efficient raking action while avoiding clogging as brush is removed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.