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US 10,034,588 B2Granted
Brushroll for vacuum cleaner
AssigneeBISSELL Homecare, Inc.
InventorsGary A. Kasper, Michael D. Graham
Life of this patent
Estimating the term…
Abstract
A brushroll dowel for a vacuum cleaner having bristle stiffeners protruding from a brush dowel. The brushroll can be made using an injection molding process, with the bristle stiffeners integrally molded with the brush dowel and a plurality of stiffened bristles protruding from the brush dowel adjacent to the bristle stiffeners.
Claims20
A brushroll for a vacuum cleaner, comprising:
- an injection-molded brush dowel having a central rotational axis defining an origin for a first axis extending through the dowel and a second axis extending through the dowel perpendicularly to the first axis to conceptually divide the dowel into quadrants;
- two bristle stiffeners integrally molded with the dowel and lying in opposing quadrants, each having a parting line which is radially spaced from and non-parallel to the rotational axis;
- and
- a plurality of stiffened bristles protruding from the brush dowel adjacent to the bristle stiffeners;
- wherein the first axis defines a line of draw for a two-piece mold forming the brush dowel and bristle stiffeners.
2 more elements
Dependencies are inferred from the claim text.