Electric razor with helical filament winding
AssigneeWheel Technology Ltd.
InventorShlomo Zucker
Life of this patent
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Abstract
A roller assembly for an electric razor includes a generally cylindrical roller driven by a drive arrangement to rotate about a central axis. The roller supports a number of blades, each having a cutting edge externally exposed and extending parallel to the central axis. Each blade moves across the skin of a user so as to slice through hair projecting from the skin of the user. The roller assembly further includes at least one filament wond in a helical path around the roller such that a gap between adjacent portions of the filament along the cutting edges is no more than about 8 millimeters.
Claims17
A roller assembly for an electric razor comprising:
- (a) a substantially cylindrical roller rotatably mounted so as to be rotatable about a central axis, said roller supporting a plurality of blades, each blade deployed with a cutting edge externally exposed and extending parallel to said central axis, each blade being deployed for moving across the skin of a user so as to slice through hair projecting from the skin of the user;
- and
- (b) a drive arrangement for driving said roller so as to rotate about said central axis,
- characterized in that the roller assembly further comprises at least one filament wound in a helical path around said roller such that a gap between adjacent portions of said at least one filament as measured along said cutting edge for each blade is no more than about 8 millimeters.
Dependencies are inferred from the claim text.