A - Human Necessities – 46 – D
Patent
A - Human Necessities
46
D
A46D 9/00 (2006.01) A46B 3/18 (2006.01) A46D 9/02 (2006.01)
Patent
CA 2072361
2072361 9109552 PCTABS00005 Apparatus and methodology for rounding the bristle tips of twisted wire brushes (26). Each twisted wire brush is mounted in a carrier (22) by means of a spindle (28) which permits the brush to be rotated along its longitudinal axis. The melting of the synthetic bristle tips takes place in a heated chamber (24) which includes one or more heated cylindrical cavities (38) which may extend over a portion or the whole of the length of each brush. When the carrier (22) approaches the chamber (24), the chamber is lowered over the carrier so that each of the individual brushes is inserted into a heated cavity (38). When inserted in the cavity the brush is rotated on the spindle (28) while it is heated. The rotation and heating causes the individual bristle tips to melt into a rounded ball without adhering to each other. Thereafter, the heating chamber (24) is raised, the carrier (22) indexed and the process repeated.
Kigyos Frank M.
Anchor Advanced Products Inc.
Swabey Ogilvy Renault
LandOfFree
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