Tape cartridge having lockout rails
US6354527B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 18, 2000 |
| Grant date | Mar 12, 2002 |
| Priority date | — |
| Expiry date | May 18, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B23/087
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A tape cartridge has a front face sized for compatibility with an industry standard tape drive, and has sides longer than the sides of some industry standard cartridges. The sides and top of the housing extend outwardly in width to form a back portion of the cartridge that is wider than the front portion and prevent the cartridge from being inserted into non-compatible tape drives. Two large diameter tape hubs improve the empty hub to full pack diameter ratios, and improve the resulting tangential drive force and tape tension profiles as the tape moves between the hubs. Flanges are permanently bonded to the hubs to prevent the tape packs from shifting and a spring biases the hubs against the baseplate. A back set of rollers includes a high-drag roller that engages the drive belt at a fixed wrap angle and produces a relatively constant drag. A front set of rollers includes a drive roller and has rollers mounted to form substantially equal geometries with rollers in the back set respective to the tape hubs. The constant wrap angle of the high-drag roller tends to outweigh varying drags from other rollers, causing less change in tape tension and tangential drive force as the tape is t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.