Removable cartridge flexible disc memory apparatus
US3975768A · kind A · utility
19Cited by
10References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 20, 1973 |
| Grant date | Aug 17, 1976 |
| Priority date | — |
| Expiry date | Jun 20, 1993 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B23/033
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Flexible disc memory apparatus has a drive for rotating the flexible disc in a cartridge which is opened when inserted into the apparatus by a wedge shaped member inserted into the cartridge. The drive includes a magnetic coupling and centering device for the hub of the flexible disc. A movable head plate carries transducer heads which are positioned at selected track locations by the head. The apparatus also includes a second flexible disc and head plate integrally incorporated in the apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.