Brush head manufacture
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United States of America Patent
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-
Apr 16, 2002
Grant Date -
N/A
app pub date -
Nov 1, 1999
filing date -
Jun 11, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of manufacturing a brush head, comprises: locating in a ferrule the basal end portion of a knot of bristles; compressing at least one wedge of resiliently deformable material by an amount such that the wedge or wedges remains capable of recovering to its or their original size and shape; before the wedge or wedges have recovered to their original size and shape, inserting them into the basal end portion of the knot of bristles in the ferrule; the wedge or wedges, as it or they recover compressing the bristles against an inside surface of the ferrule to enhance retention o the bristles by the ferrule; impregnating the basal end portion of the knot of bristles with liquid resin; and thereafter allowing or causing the resin to harden to retain the basal end portion of the knot of bristles in the ferrule.
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