Rotary lawn mower with pivotal mulch door
US7367174B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 18, 2005 |
| Grant date | May 6, 2008 |
| Priority date | — |
| Expiry date | May 9, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D42/005
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A rotary walk behind lawn mower has a wheeled cutting deck with a downwardly facing cutting chamber. A rotatable cutting blade is contained inside the cutting chamber above a lower edge of a peripheral sidewall and beneath a central hub, an annular channel being formed between the sidewall and the hub of the cutting chamber for receiving grass clippings from the cutting blade. A portion of the peripheral sidewall of the cutting chamber above the level of the cutting blade and a portion of a top wall of the cutting chamber form a pivotal mulch door for opening and closing the annular channel in which the grass clippings are moving.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.