Brush head, a method and a machine for manufacturing thereof
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United States of America Patent
Stats
-
Oct 1, 1991
Issued Date -
N/A
app pub date -
Jul 17, 1989
filing date -
Jun 22, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A brush head for cleaning and massaging the teeth and gums is disclosed having a bundle of parallel fibers welded together to form a bottom plate. The brush head is produced by continuously feeding the parallel fibers to a heated mandrel, partially melting one end of the fiber bundle to form a bottom plate with a surplus of melted material extending away to form an extended bottom plate. The extended bottom plate is removed, leaving a bottom plate which is sufficiently rigid so as to be directly attachable to a driving device. The welded bottom plate assures that fibers remain firmly attach to prevent fibers from loosening or separating from the brush.
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