Self-propelled lawn mower
US7117660B1 · kind B1 · utility
28Cited by
14References
7Claims
0Family size
Inventor
Key dates
| Filing date | Apr 12, 2000 |
| Grant date | Oct 10, 2006 |
| Priority date | — |
| Expiry date | Apr 12, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S56/07
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A self-propelled lawn mower comprising a microprocessor and at least one cutter (10), wherein an elastic tension element (13) that is connected to the frame of the lawn mower and the at least one cutter (10) is provided. Central automatic adjustment of the height of the cutters (10) in relation to the ground is also provided. The cutters (10) consist of a rotary disk (3) with retractable blades (5) provided with a stop (4) underneath the lower surface in the form of a central extension that can come into contact with the ground.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.