Push-button video disc hub
US4022478A · kind A · utility
13Cited by
4References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 3, 1975 |
| Grant date | May 10, 1977 |
| Priority date | — |
| Expiry date | Jul 3, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B17/0282
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A hub assembly for releasably securing an apertured record disc upon a base member includes a hollow elastic sleeve deformable from an upright quiescent position for receiving a disc to a compressed operative position. An actuator, engageable with the sleeve and displaceable from quiescent to operative positions, compresses the sleeve to secure the disc upon the base member. A latch, engageable with the actuator, retains the actuator in its operative position but is releasable by a spring to permit the compressed sleeve and actuator to their quiescent position and thus free the disc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.