Cleaning sponge roller
US8555458B2 · kind B2 · utility
4Cited by
0References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2009 |
| Grant date | Oct 15, 2013 |
| Priority date | — |
| Expiry date | Dec 9, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L21/67046
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A cleaning sponge roller 1 is made of a polyvinyl acetal porous material having elasticity in a wet state, and includes a roller body 3 in an approximate cylinder form, and a plurality of protrusions 5 formed integrally on an outer peripheral surface 3a of the roller body 3, and rotates the multiple protrusions 5 to make contact with a surface to be cleaned so as to clean the surface. Outer surfaces of the protrusions 5 respectively have a top outer surface 5a (interior exposed surface) making contact with the surface to be cleaned while cleaning in a state where internal structures of the protrusions 5 are exposed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.