Vacuum cleaning device
US9259128B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2012 |
| Grant date | Feb 16, 2016 |
| Priority date | — |
| Expiry date | Apr 5, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/0461
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A vacuum cleaning device comprises a unit (1) for aerodynamically affecting dust particles and/or a surface to be cleaned. The unit (1) comprises a housing (30) having a housing wall (31) encompassing two internal sections (20, 22), and a movable surface (11) arranged at an interface of the two sections (20, 22), wherein a portion (32) of the housing wall (31) delimiting a first section (20) is provided with at least one opening (21), and wherein means for actuating the movable surface (11) are arranged in a second section (22). A portion (33) of the housing wall (31) delimiting the second section (22) is adapted to at least hinder exchange of air between an inside of this section (22) and an outside of the housing (30) at the location of this section (22), in order to at least hinder a migration of dust to the second section (22).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.