Vacuum cleaner muffler/deflector
US6035485A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 20, 1998 |
| Grant date | Mar 14, 2000 |
| Priority date | — |
| Expiry date | Mar 20, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/0081
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A combined muffler and air deflector apparatus for a vacuum cleaner includes a body having first and second ends, the first end adapted to be coupled to a blower port of a vacuum cleaner. A cap has a first end that defines an outlet, and a second end that is coupled to the second end of the body so that the body and the cap define a passageway for directing air from the blower port to the outlet. The outlet may be generally tapered such that air flowing through the passageway from the blower port is restricted. A device is situated in the passageway for muffling sound. In one embodiment, the sound muffling device comprises a divider that creates sound reflecting chambers. In another embodiment, an acoustical pad functions as the sound muffling device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.