Brush – broom – and mop making – Brush-making machines – Tuft gathering
Reexamination Certificate
2005-05-17
2005-05-17
Davis, Robert (Department: 1722)
Brush, broom, and mop making
Brush-making machines
Tuft gathering
C300S005000, C425S805000
Reexamination Certificate
active
06893100
ABSTRACT:
Methods and apparatus for automated brush assembly are disclosed. A method of end-rounding bristle ends with an abrasive surface in random orbital motion relative to bristle tufts held in a movable gripper is described. A novel tuft carrier adapted to hold a plurality of bristle tufts in an arrangement suitable for direct mechanical insertion into the tuft chambers of a brush mold is also described. The tuft carrier has a plurality of tuft insertion cavities and a plurality of movable clamps, each clamp adapted to at least partially occlude one of the cavities when closed. Individual bristle tufts, having a fused end and a rounded or non-rounded bristle end, are transferred from a movable gripper to the tuft carrier by direct mechanical insertion. In addition, an apparatus for direct mechanical insertion of bristle tufts from a tuft carrier into the tuft chambers of a brush mold is described.
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Hottmann Wendell M.
Kubinski Alan F.
McConnell Victor
Miller Keith
Reinking Rex E.
Davis Robert
Gillett Canada Company
Howley David A.
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