Cleaning device
US9782055B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 25, 2016 |
| Grant date | Oct 10, 2017 |
| Priority date | — |
| Expiry date | Apr 15, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB08B7/0028
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A cleaning device having a frame and an elongated strip of cleaning material wound into a roll rotatably mounted on a roller support. A slave roller having a core and a cylindrical tube disposed over the core is mounted to the frame so that the slave roller is spaced and parallel to the roll. A torsion spring is secured to and between the core and the tube so that, as the tube rotates relative to the core, the spring is wound. The strip of cleaning material is wound in between the roll and slave roller so that, upon rotation of the first roller in a first rotational direction, the cleaning material is unwound from the slave roller onto the roll while simultaneously winding the torsion spring. Upon disengagement of the first roller from the cleaning surface, the torsion spring rotatably drives the slave roller and rewinds the portion of the strip around the tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.