Suction tool and electric vacuum cleaner
US11266282B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2016 |
| Grant date | Mar 8, 2022 |
| Priority date | — |
| Expiry date | Jun 2, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/248
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A suction tool includes: a hollow cylindrical main pipe having: a rear end side connected to a vacuum cleaner main body; a front end portion in which a main suction port is formed; and a hollow cylindrical sub pipe having: a rear end side at which an inside of the hollow cylindrical sub pipe communicates with an inside of the main pipe; and a front end portion in which a sub suction port is formed. The sub pipe is movable between a retracted position in which the front end portion of the sub pipe is arranged so as to be retracted from the front end portion of the main pipe, and a use position in which the front end portion of the sub pipe is arranged so as to protrude from the front end portion of the main pipe along an axial direction of the main pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.