Device having dual renewable blades for treating a target surface and replaceable cartridge therefor
US8495784B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2011 |
| Grant date | Jul 30, 2013 |
| Priority date | — |
| Expiry date | Feb 12, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L1/06
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A device for treating a target surface, such as occurs when cleaning a window. The device has a squeegee blade or other member to apply pressure to the target surface. A sheet movably covers the blade, to present a fresh covering to the target surface with each use. The fresh surface provides for improved removal of the liquid from, or improved treatment of the liquid on, the target surface. Additionally a sheet may comprise a prewetted substrate to apply the liquid to the target surface. One or both of the sheets may be disposed in a cartridge insertable to and removable from the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.