Surface cleaning head with leading roller
US11712139B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2021 |
| Grant date | Aug 1, 2023 |
| Priority date | — |
| Expiry date | Oct 2, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/30
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A surface cleaning head with a leading roller may be used to facilitate capturing of debris in the air flow into a suction conduit on the underside of the surface cleaning head. The leading roller is generally positioned adjacent to and in advance of the opening of the suction conduit. The surface cleaning head may have dual agitators—a leading roller and a rotating brush roll—with the leading roller being located in front of the brush roll. The leading roller may have a smaller diameter than the brush roll and may provide a softer cleaning element. The leading roller may also have a bottom portion exposed to the flow path to the suction conduit and at least a top half that is not exposed to that flow path. The leading roller may also float relative to the surface cleaning head and/or may be adjustable relative to the brush roll.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.