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US 12,520,976 B2Granted
Surface cleaning apparatus
AssigneeTechtronic Floor Care Technology Limited
InventorsRobert McRorie, Douglas Rukavina
Life of this patent
Estimating the term…
Abstract
A surface cleaning apparatus comprises a brushroll that rotates about an axis. The brushroll defines a cylindrical portion and the axis extends centrally through the cylindrical portion. The brushroll also includes a rib that extends in a direction away from the axis. The rib includes a face extending along a line that is collinear with a secant through the cylindrical portion. A brush member extends from the face.
Claims19
A surface cleaning apparatus comprising:
- a brushroll including
- a body having a cylindrical portion;
- a plurality of ribs extending outwardly from the cylindrical portion, each of the plurality of ribs having a planar face extending along a line that intersects the cylindrical portion and the planar face contacts the cylindrical portion at a contact edge;
- and a plurality of polymer bristles extending from each planar face having a length extending, adjacent the planar face, being parallel, plus or minus 20 degrees, to at least one tangent to the cylindrical portion at the contact edge.
1 more element
A surface cleaning apparatus comprising:
- a brushroll that rotates about an axis, the brushroll including:
- a body, and
- a plurality of ribs that extend outwardly from the body and helically along and around the axis,
- wherein a plurality of polymer bristles form a brush member wherein the brush member extends from a planar trailing face of each of the plurality of ribs, wherein the body includes a cylindrical portion, and wherein the planar trailing face extends along a line that is collinear with a secant through the cylindrical portion, and wherein the brush member has a longitudinal axis that extends through the planar trailing face.
1 more element
A surface cleaning apparatus comprising:
- a brushroll that rotates about an axis, the brushroll including:
- a body with an outer profile having an outer diameter;
- a planar trailing face extending along a line that is collinear with a secant through the outer profile;
- wherein the trailing face is positioned on a rib extending outwardly from the body;
- and wherein a plurality of polymer bristles form a brush member extending from the planar trailing face, wherein the brush member has a longitudinal axis that extends through the planar trailing face.
2 more elements
Dependencies are inferred from the claim text.