Recording medium disk with clearance for adhesive bond
US5257154A · kind A · utility
3Cited by
2References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 11, 1992 |
| Grant date | Oct 26, 1993 |
| Priority date | — |
| Expiry date | Jun 11, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B23/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disk is provided with discontinuity between a surface of a circumferential portion of a disk base defining a plane for installing a recording medium sheet and a bonding surface provided outside of the aforementioned surface for installation. The discontinuity serves for maintaining the recording medium sheet away from the bonding surface. With this discontinuity, the recording medium sheet can slip smoothly over the surface of the bond. Therefore, removing or scraping off the bond from the bonding surface is avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.