Cleaning apparatus with combing unit for removing debris from cleaning roller
US11647881B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2017 |
| Grant date | May 16, 2023 |
| Priority date | — |
| Expiry date | Jun 1, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/30
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A cleaning apparatus includes a combing unit including a series of spaced protrusions or teeth extending into a cleaning roller for preventing build up and removing debris (such as hair, string, and the like). The protrusions extend along a substantial portion of the cleaning roller and extend partially into the cleaning roller to intercept the debris as it passes around the roller. The protrusions have angled leading edges that are not aligned with a rotation center of the cleaning roller and are directed into or against a direction of rotation of the cleaning roller. The combing unit and protrusions have a shape and configuration designed to facilitate debris removal from the cleaning roller with minimal impact on the operation of the cleaning apparatus. The cleaning apparatus may include a surface cleaning head of an upright vacuum cleaner or sweeper or a robotic vacuum cleaner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.