Retaining rings for optical disk assemblies
US4550396A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 1983 |
| Grant date | Oct 29, 1985 |
| Priority date | — |
| Expiry date | Jan 17, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49938
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical disk assembly includes a web assembly having a flexible disk-shaped support web carrying a record layer. The support web has an information storage region. A pair of annular retaining ring members engage opposite sides of an annular peripheral region of the web assembly to clamp the support therebetween are formed from malleable stock material which is deformed during assembly of the optical disk assembly to provide a locking interfit therebetween with the peripheral region of the web assembly interleaved between the ring members. The peripheral region of the support is wrapped about an annular reference surface of one ring member and is pushed into an annular recess with undercut area in that ring member. The other ring member is deformed into the recess undercut.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.