Suction cleaning apparatus
US8510904B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 17, 2011 |
| Grant date | Aug 20, 2013 |
| Priority date | — |
| Expiry date | Oct 17, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L5/365
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A suction cleaning apparatus comprising a dirt collection container which has a suction inlet and is fluidly connected to at least one suction unit via at least one filter and at least one suction channel is provided. The suction cleaning apparatus further has at least one external air inlet which opens out into the suction channel downstream of the at least one filter and which is selectively closable and openable by means of a closing body. In order to reduce the installation space of the closing body required for proper filter cleaning, the suction channel has an external air inlet wall with at least one external air inlet. The closing body, sliding along the outer side of the external air inlet wall, is reciprocatingly movable between a closed position closing the at least one external air inlet and an open position opening the at least one external air inlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.