Lawn mower blade coupling system
US7958710B2 · kind B2 · utility
23Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2009 |
| Grant date | Jun 14, 2011 |
| Priority date | — |
| Expiry date | Jun 26, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D34/733
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A rotary lawn mower includes an internal combustion engine having a power take-off. The mower further includes a connector adaptor attached to the power take-off, and a lawn mower blade. A connector base of the mower is attached to the blade. The connector base and the connector adaptor have extensions designed to interlock the connector base with the connector adaptor. At least one of the extensions forms a J-shaped structure arranged longitudinally along an axis of rotation of the connector base and connector adaptor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.