Upright vacuum cleaner including rotary brush
US10575691B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2017 |
| Grant date | Mar 3, 2020 |
| Priority date | — |
| Expiry date | Apr 26, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/325
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An upright vacuum cleaner includes a cleaning head for removing debris from a floor, a rotary brush for agitating the debris, and a debris tube connected to the cleaning head for receiving the debris from the cleaning head. The upright vacuum cleaner also includes a motor to drive the rotary brush. The motor includes a rotatable drive shaft. The upright vacuum cleaner further includes a pulley assembly adapted to operatively connect the motor to the rotary brush. The pulley assembly includes a clutch and a belt. The belt is adapted to extend between the drive shaft and the clutch. The clutch is connected to the rotary brush to rotate the rotary brush. The upright vacuum cleaner also includes a clamp connecting the clutch to the cleaning head. The tightness of the belt is adjusted when the clamp moves between an unfastened position and a fastened position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.