Portable power working machine
US6370729B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 4, 2001 |
| Grant date | Apr 16, 2002 |
| Priority date | — |
| Expiry date | Jan 4, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/0081
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A portable power working machine has an L-shaped frame, a centrifugal blower fixed on a frame in a state that an intake port is opposed to a upright portion of the frame, and a cover having an upper portion spanned between an upper portion of the upright portion of the frame and the centrifugal blower and side portions extending from respective ends of the upper portion to a horizontal portion of the frame and spanned between a side portion of the upright portion and the centrifugal blower. A plurality of through-holes are formed in the upper portion of the cover, the through-holes communicating an interior space defined by the frame, the centrifugal blower and the cover with an exterior space on an outside of the interior space and having a size to block foreign matter in size greater than a predetermined value from passing through.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.