Cross flow horizontal rotary lawn mower with replaceable blade cartridges
US9907226B2 · kind B2 · utility
1Cited by
84References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2016 |
| Grant date | Mar 6, 2018 |
| Priority date | — |
| Expiry date | Nov 14, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D2101/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A lawnmower uses thin, replaceable blades with a hardened cutting edge and a cross-section defining an airfoil retained in cartridges that are inserted and removed from rotors in a blade assembly at need. The cartridges comprise a blade and rotor interlocking elements affixed to the blade, each rotor interlocking element corresponding to one rotor in the blade assembly. Each rotor and rotor interlocking element includes features that allow the two to be securely engaged so that the rotors may be spun quickly in a mower blade assembly to cut grass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.