Stabilizing backing plate for a flexible disk store
US4120505A · kind A · utility
1Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 13, 1977 |
| Grant date | Oct 17, 1978 |
| Priority date | — |
| Expiry date | Jul 13, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B17/32
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A stabilizing backing plate for a rotating flexible record disk has a bearing surface with a smooth finish to prevent disk wear. A plurality of depressions in the backing plate trap air to prevent the flexible disk from adhering to the backing plate during start-up.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.