Electric vacuum cleaner device
US11272820B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2017 |
| Grant date | Mar 15, 2022 |
| Priority date | — |
| Expiry date | Jul 6, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/242
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A vacuum cleaner includes a primary dust container that includes a container body, the container body delineating a dust collecting chamber that accumulates dust sucked into the vacuum cleaner and including a waste outlet that discharges the dust accumulated in the dust collecting chamber, the primary dust container also including a waste-outlet lid that opens and closes the waste outlet. A station includes a secondary dust container that accumulates the dust discharged from the primary dust container, and a driving source that generates opening driving force and closing driving force for the waste outlet. The electric vacuum cleaner generates a driving force for opening and closing an air passage connecting a primary dust container and a secondary dust container, without impairing convenience of a vacuum cleaner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.