Electric vacuum cleaner
US9907447B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2015 |
| Grant date | Mar 6, 2018 |
| Priority date | — |
| Expiry date | Jul 2, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L2201/04
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An electric vacuum cleaner in which a dust container inside an autonomous robotic vacuum cleaning unit can be fluidically connected to a station using propulsive force of the cleaning unit moving to a dust discharge position. The cleaning unit includes a body case, and a primary dust container including: a container body accumulating dust collected by the cleaning unit; a disposal port discharging dust from inside the container body; and a disposal lid opening and closing the disposal port. The station includes a dust transfer pipe connected to the disposal port of the primary dust container; a lever hooked by the disposal lid while the cleaning unit is homing, opening the disposal lid and connecting the disposal port and the dust transfer pipe; and a secondary dust container in which dust discharged from the primary dust container through the dust transfer pipe is accumulated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.