Dual-purpose vacuum cleaner
US9173531B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2013 |
| Grant date | Nov 3, 2015 |
| Priority date | — |
| Expiry date | Jul 3, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L2201/00
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A dual-purpose vacuum cleaner includes a self-walking carriage including three or more wheels, an accommodation chamber providing at least one bearing face, a roller brush, a dust guide, a passageway connected to the accommodation chamber and a plurality of first contacts disposed in the accommodation chamber, a hand-held vacuum cleaner detachably accommodated in the accommodation chamber and including at least one abutment face, a handle, a dust suction entrance attached to the passageway and a plurality of second contacts respectively physically kept in contact with the first contacts, and a cover covered on the self-walking carriage to conceal the hand-held vacuum cleaner in the self-walking carriage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.