Lawn mower with laser cutting apparatus
US6269617A · kind A · utility
Inventor
Key dates
| Filing date | May 19, 2000 |
| Grant date | Aug 7, 2001 |
| Priority date | — |
| Expiry date | May 19, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D34/015
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A cutting apparatus including a plurality of rotating laser beams for cutting vegetation. The apparatus comprises a housing including side walls being extended generally perpendicular to form a downwardly oriented opening. An electrically powered laser cutting device is rotatably positioned centrally within the housing. A transport device is connectable to the housing to provide movement of the housing and laser cutting device along a surface covered by vegetation. The laser cutting device generates at least one laserbeam that is continuously rotatable in a 360.degree. arc underneath the housing, with the at least one laser beam being adjustable in angular direction to direct laser beams in a plurality of angles arcing downwardly across the vegetation being cut. The speed of rotation of the one or more laser beams increases proportionally as ground speed increases for the cutting apparatus to provide adequate cutting of surface area in proportion to the ground speed across the vegetation. A plurality of rotating pairs of laser beams can be generated and separately angled downward at angles other than horizontal, providing cutting paths across the vegetation at different heights dur…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.