Device for producing U-shaped surface channels in sheeting
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United States of America Patent
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Aug 3, 1993
Grant Date -
N/A
app pub date -
Nov 22, 1991
filing date -
Nov 28, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device is disclosed for producing surface channels of at least approximately rectangular cross-section in sheeting consisting of a soft material, in particular mineral-fiber insulating mats or sheeting consisting of a styrene polymer. The device makes use of a motor-operated cutting tool with an oscillating cutter. The cutter comprises sections which are bent off relative to each other and which are provided with a cutting edge, at least in part. The cutting edge extends over at least three of two sections which form together a U or L, respectively. The cutter is passed through the sheeting approximately along a straight line.
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