Dynamic optical information storage or retrieval – Dynamic mechanism optical subsystem – Optical storage medium support
Reexamination Certificate
2008-04-29
2008-04-29
Davis, David (Department: 2627)
Dynamic optical information storage or retrieval
Dynamic mechanism optical subsystem
Optical storage medium support
Reexamination Certificate
active
07367038
ABSTRACT:
A disc holder for holding at least one media storage disc during rotation includes a central hub arranged for rotation about a central axis. The hub includes resilient centering arms which are arranged to provide an outwardly directed centering force on an internal bore of a carried disc in order to center the carried disc about the axis of rotation of the hub. The arms are disposed in, and movable in, planes which are substantially perpendicular to the axis of rotation of the hub. The disc holder may be arranged for carrying a stack of axially spaced media storage discs and may include axial gripping structure for holding the stack together. The gripping structure may include a central shaft which is held in position by ball shaped clamps which are spring loaded against inclined surfaces.
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Davis David
Nixon & Vanderhye P.C.
Westwind Air Bearings Ltd.
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