Strand alignment devices for high speed winding of magnetic tape
US5533690A · kind A · utility
16Cited by
14References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1994 |
| Grant date | Jul 9, 1996 |
| Priority date | — |
| Expiry date | Jun 2, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B15/32
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Magnetic tape is wound onto a roll at high speeds. Each strand of tape wound onto the roll is precisely superimposed over the previously wound strand by alignment devices including a pre-wrap alignment roller, a packwheel, and a post-winding final alignment guide roller. The final alignment guide roller locates the edges of the strand being wound in positions which are coplanar with the edges of the previously wound strands on the outside of the roll. The tape is aligned and locked in place on the roll by a combination of air removal and alignment and re-alignment steps during air removal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.