Optical disk with snap-fit magnetized hub
US5867477A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1993 |
| Grant date | Feb 2, 1999 |
| Priority date | — |
| Expiry date | Apr 28, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B23/0307
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical disk is equipped with a hub which is very easy to attach and detach. The hub has a bottom and a cylindrical wall which projects upwards from the bottom, and which is inserted in the center hole of the optical disk. The cylindrical wall of the hub is slotted so that the upper end of the cylindrical wall can be bent radially inwards to a smaller diameter allowing removal of the hub from the optical disk. The hub further has stoppers, formed at or near the bottom, for abutting the lower surface of the optical disk, and claws formed at or near the upper end of the cylindrical wall, for abutting on the upper surface of the optical disk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.