Title:
SPARK SUPPRESSOR FOR ROTARY ABRASIVE TOOL
Document Type and Number:
WIPO Patent Application WO/2018/203134
Kind Code:
A8
Abstract:
A spark suppressor and spark- suppressing rotary abrasive tool having at least one non- smooth spark energy dissipating surface or layer disposed adjacent a spark generating region where there is abrasive contact between a workpiece and rotating abrasive implement of the tool. A preferred spark suppressor is a spark suppressing protective guard for the tool having a spark energy dissipating surface or layer within disposed adjacent to and facing toward the spark generating region. A preferred spark-suppressing rotary abrasive tool is equipped with such a spark-suppressing guard. A preferred spark energy dissipating surface is of three-dimensionally contoured construction having at least a plurality of upraised portions against which sparks generated contact dissipating their momentum and velocity until stopped and retained within the spark suppressor. A preferred spark energy dissipating layer is formed of a plurality of wires or pins that can be entangled to form a porous non-woven spark catching layer.
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Inventors:
KEISER BRIAN (US)
NAUMANN MANFRED (DE)
BLECHSCHMIDT RALF (DE)
SCHUSTER SEBASTIAN (DE)
CLIFFORD SHANE (US)
RUΒ HARALD (DE)
NAUMANN MANFRED (DE)
BLECHSCHMIDT RALF (DE)
SCHUSTER SEBASTIAN (DE)
CLIFFORD SHANE (US)
RUΒ HARALD (DE)
Application Number:
PCT/IB2018/000564
Publication Date:
March 07, 2019
Filing Date:
May 01, 2018
Export Citation:
Assignee:
DRONCO GMBH (DE)
International Classes:
B24B55/05
Attorney, Agent or Firm:
MEISSNER BOLTE PATENTANWÄLTE RECHTSANWÄLTE PARTNERSCHAFT MBB (DE)
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