Brush saw cutting head with integral herbicide applicator
US6886256B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 2003 |
| Grant date | May 3, 2005 |
| Priority date | — |
| Expiry date | Aug 1, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D43/14
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A chamber is formed in the upper end of a brush saw cutting head housing. The brush saw cutting element drive spindle's upper end projects into the chamber. The drive spindle's lower end projects beneath the housing and is drivingly couplable to the cutting element. A disc is mounted against the underside of the cutting element. A cavity is formed in the disc. At least one channel extends through the disc, between the cavity and the disc's external rim. An aperture extends through the drive spindle, between the chamber and the cavity. Herbicide supplied to the chamber flows from the chamber, through the drive spindle aperture, into the cavity. The drive spindle rotates the disc. Centrifugal force imposed on herbicide within the cavity forces the herbicide through the channel(s) onto the underside of the cutting element, for transfer onto the stumps of material cut by the element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.