Back-up pad with drive adapter and offset passageways

Details Back-up pad with drive adapter and offset passageways Back-up pad with drive adapter and offset passageways

B - Operations, Transporting

24

D

51/145

B24D 9/08 (2006.01) B24D 18/00 (2006.01)

Patent

CA 1331095

Abstract of the Disclosure A coated abrasive back up pad is disclosed that may be attached to different types of drive motor assemblies by a simple rearrangement of an adapter included in the back up pad. The back up pad may have passageways with offset portions in a foam layer of the pad positioned to communicate between openings in an abrasive disk attached to the back up pad and vacuum systems in various drive motor assemblies to which it may be attached. A novel method is disclosed for molding the back up pad to form such passageways which includes molding dies into the pad that can later be removed by compressing the foam layer so that the dies cut outlet openings through which they are then removed.

613779

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