Arrangement for preventing entrance of harmful particles for use in a cartridge
US4933797A · kind A · utility
3Cited by
2References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 7, 1988 |
| Grant date | Jun 12, 1990 |
| Priority date | — |
| Expiry date | Oct 7, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B23/08785
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a recording tape cartridge having a cartridge case, magnetic recording tape and a front lid and a rear lid for protecting the magnetic tape, there are provided entrance preventing members at a bottom the cartridge case facing to clearances between side edges of the front lid and case body for preventing entrance of harmful floating particles into the area near the recording tape so as to prevent corrosion of the recording tape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.