Sealing member for toner cartridge
US6778793B2 · kind B2 · utility
3Cited by
9References
60Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 8, 2002 |
| Grant date | Aug 17, 2004 |
| Priority date | — |
| Expiry date | Feb 8, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/069
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A sealing film for a toner cartridge or container. The sealing film has a layer with a thickness of between 20 &mgr;m and 1 mm and has at least on substantially linear tearing direction. The layer also includes surface elements that extend in a direction that is different from the preferred tearing direction of the sealing film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.