Dynamic information storage or retrieval – Dynamic mechanism subsystem – Specific detail of storage medium support or motion production
Patent
1984-08-20
1985-11-12
Stephan, Steven L.
Dynamic information storage or retrieval
Dynamic mechanism subsystem
Specific detail of storage medium support or motion production
369247, G11B 100
Patent
active
045532303
ABSTRACT:
A platform that is magnetically suspended relative to a base. Magnet members are deployed atop and about the periphery of the base in fixedly secured relation thereto and oppositely polarized magnet members are secured to the bottom and about the periphery of the platform so that a magnetic repulsion exists between such magnet members in sufficient intensity to maintain the platform in suspended relation above the base. Taut guy wires disposed about the respective perimeters of the platform and the base maintain the base and platform in their cooperative dispositions. The base is provided with a plurality of upstanding post members and the platform is provided with a plurality of depending post members. The guy wires are grouped in pairs, and opposite ends of the guy wires in each pair are fixedly secured to different ones of the base and platform post members so that the platform does not slip out of the magnetic field. A turntable and tone arm may be employed to provide a record playing apparatus that is substantially vibration free.
REFERENCES:
patent: 3156472 (1964-11-01), Brock
patent: 3235267 (1966-02-01), Rangabe
patent: 3771797 (1973-11-01), Braun
patent: 4325133 (1982-04-01), Reitmayer
patent: 4381556 (1983-04-01), Bouydon et al.
patent: 4429381 (1984-01-01), Paulson
patent: 4475184 (1984-10-01), Cooper et al.
Smith Ronald E.
Stephan Steven L.
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