Device for improved removal of liquid from fabric
US6981338B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Dec 23, 2003 |
| Grant date | Jan 3, 2006 |
| Priority date | — |
| Expiry date | Dec 23, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/02
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A device for enhancing removal of liquid from fabric, such as a vacuum head device for removing liquid from carpet, includes a first and second surface forming an extraction slot. The first surface may include a plurality of channels extending towards the extraction slot configured to direct the liquid toward the extraction slot. Alternatively, the first surface may have a smaller surface area and the second surface may be configured with a lower surface in order to penetrate the carpet and act as a squeegee. The cross-sections of the first and second surfaces are preferably circular. In another embodiment, the cross-sections of the first and second surfaces may comprise, but are not limited to, a semi-rectangular cross section, a V-shaped cross-section, or an elliptical cross-section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.