Patent ID: 7954119
Filing Date: 2011-05-31
Classification: G11B

Abstract:
1. Apparatus for attaching a disk to a spindle of a spinstand, the apparatus comprising: a spindle adapter for attaching to a spindle; and, a cap; the spindle adapter comprising an attachment portion for attaching to the spindle, the spindle adaptor having a drawbar movably disposed within, the drawbar having a connector end that is reversibly connectable to the cap so that the cap can be separated from the spindle adapter to allow exchange of said disk, the drawbar having a piston that is connectable to a source of fluid pressure, the drawbar being movable in response to fluid pressure applied to the piston so as to urge together the cap and the spindle adapter when connected, wherein the spindle adapter has a mating surface and when the cap and the spindle adaptor are connected and urged together, the mating surface of the spindle adapter registers with a mating surface of the cap without clamping the disk, wherein the mating surface of the spindle adaptor is fixed in position relative to the attachment portion of the spindle adaptor, and wherein the cap and the spindle adapter are arranged to be capable of holding said disk therebetween by the operation of a clamp mechanism that operates separately of movement of the drawbar.