Tape bearing surface with reduced tape contact and method of making same
US5870924A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 1998 |
| Grant date | Feb 16, 1999 |
| Priority date | — |
| Expiry date | Apr 14, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B15/607
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A tape bearing surface for a tape that reduces tape surface contact near the edge, while minimizing variation in cross-web tension, and a method of making the same. The tape surface piece has a longitudinal axes defining a tape path and a lateral axis is perpendicular to the longitudinal axis along a top surface. The top surface defines a convex shape having at least one distinct radii extending along the lateral axis. In one embodiment, the convex shape is elliptical or parabolic. In one embodiment, two distinct radii are formed so that a first radius proximate a center of the lateral axis is greater then a second radius proximate edges of the lateral axis. The present invention is also directed to a tape guide and a tape cartridge containing the present tape bearing surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.