Device for the stabilization of flexible discs and more particul

Details Device for the stabilization of flexible discs and more particul Device for the stabilization of flexible discs and more particul

1976-05-25

1978-01-31

Cardillo, Jr., Raymond F.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

1791003V, 360102, 360103, H04N 576, G11B 2120

Patent

active

040718549

ABSTRACT:
An apparatus for reproducing information on a flexible video disc in which the disc is accurately positioned facing the transducer head by structure including a fixed plate for prestabilizing the disc in rotation to a substantially constant distance in relation to the lower face of the plate. The plate has a central inlet coaxial with the axis of rotation for providing an air cushion between the disc and lower face of the plate and a rectangular elongated slot extending perpendicular to that axis. A fluid-tight casing houses a transducer head and includes a lower portion extending through the slot for providing a passage for the light beam and for fluid under pressure, the flow of fluid drawing the disc to a distance where equilibrium is established between the forces of attraction and repulsion.

REFERENCES:
patent: 3123677 (1964-03-01), Lauxen et al.
patent: 3166997 (1965-01-01), Barcia et al.
patent: 3914541 (1975-10-01), Elliot
patent: 3947888 (1976-03-01), Jarsen

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