Vacuum cleaner having a noise blocking member facing an intake vent of a motor fan
US7337492B2 · kind B2 · utility
3Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2003 |
| Grant date | Mar 4, 2008 |
| Priority date | — |
| Expiry date | Feb 20, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/22
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
In an electric vacuum cleaner having an intake air opening 18 disposed in a front portion of a main body case 17, a dust collection case 19 which communicates with the intake air opening 18, and a motor fan 20 provided in a back portion of the main body case, and an intake air passage 23, 24, 25 from the dust collection case 19 to the motor fan 20 being formed, a noise blocking member 14d having a specific gravity larger than a material composing the main body case 17 and an area wider than a project area of an intake vent 20a is disposed in the intake air passage 25 facing to the intake vent 20a of the motor fan 20.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.