Core for washing sponge roller
US8656545B2 · kind B2 · utility
0Cited by
9References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 26, 2003 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Oct 30, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB08B3/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A core for a cleaning sponge roller and a cleaning sponge roller set include a core and a cleaning sponge roller mounted on the core. The core for the cleaning sponge roller is in a substantially cylindrical shape including a bore extending in an axial direction and a plurality of small holes communicating between the bore and a circumferential outer surface of the core. The diameter of the bore is 10 mm or more. The diameter of the small holes is 2.5 mm or more. A total of cross-sectional areas of openings of all the small holes is larger than a cross-sectional area of the bore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.