Optical disk assembly
US4726008A · kind A · utility
20Cited by
5References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 20, 1986 |
| Grant date | Feb 16, 1988 |
| Priority date | — |
| Expiry date | Oct 20, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2017/005
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Disclosed herein is an optical disk assembly of the type comprising a transparent plastic cover sheet which overlies, and protects from contamination, an optical recording media disposed on a substrate. Plastic spacer means are provided for spacing the cover sheet from the recording media. To avoid the disadvantages attendant the use of adhesives, the cover sheet is fused to the spacer means such as by a laser welding technique.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.