Sealing member for toner cartridge
US6775493B2 · kind B2 · utility
4Cited by
10References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2002 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Mar 26, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/069
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides a sealing film for a toner cartridge. The sealing film includes a layer with a preferred linear tearing direction. The layer is provided with longitudinal surface elements defining a strip to be torn out. The longitudinal surface elements extend in an inclined direction with respect to the strip to be torn out. The strip to be torn out includes a pulling means having a sufficient tearing resistance for preventing a separation between the pulling means and the strip to be torn out during a tearing operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.