Porous roller bearing
US6609645B1 · kind B1 · utility
6Cited by
11References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2000 |
| Grant date | Aug 26, 2003 |
| Priority date | — |
| Expiry date | Aug 13, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2401/242
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A tape roller bearing is provided that prevents the development of an air film between the roller surface and the tape. The spool surface is made from porous material so that air flows through the spool surface. The porous material vents air uniformly over the roller surface, and the tape remains in direct contact with the roller, even at high speed. The inventive roller has many advantages, including improvement of tape wear characteristics, enhancement of tape guiding abilities, and increased tape speed stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.