Abrading – Machine – Rotary tool
Reexamination Certificate
2007-10-09
2007-10-09
Morgan, Eileen P. (Department: 3723)
Abrading
Machine
Rotary tool
C451S259000, C451S290000, C451S495000, C451S921000
Reexamination Certificate
active
11367605
ABSTRACT:
A polishing disk for a tool for the fine machining of optically active surfaces on spectacle lenses in particular is disclosed, which comprises a support body, to which a foam layer is attached, wherein a polishing film bears against the foam layer. The polishing film is provided with at least one opening in a central region. During machining, the opening ensures pressure equalization and makes liquid polishing agent available from inside the foam layer, as a result of which better rinsing and cooling of otherwise disadvantaged regions of the polishing disk is achieved. As a result, a polishing disk of simple and cost-effective design is proposed, which is much more durable than the prior art while achieving high surface qualities.
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Philipps Peter
Urban Lothar
Morgan Eileen P.
Satisloh GmbH
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