Twisted tuft end brush and method of making
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United States of America Patent
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Issued Date -
Sep 30, 2004
app pub date -
Mar 26, 2003
filing date -
Mar 26, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A twisted knot tuft wire filament end or cup brush suitable for carbon removal on engine blocks, for example, activates a longer useful service life by utilizing a center core formed into the center of the brush and conforming to and embracing the inner ends of the twisted tuft knots as they project from the cup. The core is applied in a putty-like condition and preferably with axial pressure. The core cures into a solid though somewhat elastic plug embracing the individual knots at the center of the brush and confining them against the cup wall. The invention substantially reduces fracture and particularly long fracture of the wire filaments significantly increasing brush life.
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