Abrading – Machine – Rotary tool
Reexamination Certificate
2005-01-11
2005-01-11
Rachuba, M. (Department: 3723)
Abrading
Machine
Rotary tool
C451S288000, C451S290000, C451S291000
Reexamination Certificate
active
06840847
ABSTRACT:
A device for polishing digital storage discs including a polishing plate rotatably driven about a vertical axis, the upper side of which has a polishing cloth, wherein the polishing cloth is interrupted by a ring-shaped recess concentric with the axis of the polishing plate, at least one circular load-applying plate from the planar lower side of which a projection centrally protrudes to appropriately engage the central hole of the storage disk, a roller holder which has at least one idling roller and one driven roller against which the circumference of said load-applying plate gets into engagement when said plate is carried along while lying on said polishing plate, a drive for said driven roller, and mechanism for feeding a polishing medium to said polishing cloth.
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Bodlée Paul
Vatterott Rolf
Peter Wolters Werkzeugmaschinen GmbH
Rachuba M.
Vidas, Arrett & Steinkraus PA
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