Hair roller
AssigneeHelene Curtis Industries, Inc.
InventorPhillip S. Stefaniak
Life of this patent
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Abstract
A hair roller is provided that comprises a tubular body defining an outer surface for receiving hair to be wound thereon. The outer surface is free of projections or depressions exceeding 0.010 inches in height or depth. The outer surface of the tubular body is formed of a resilient, elastomeric, compressible, and non-porous material having a Shore durometer A hardness of between about 20 and about 65. The outer surface also has a static coefficient of friction greater than about 50, measured at ambient temperature against dry hardwood on the James machine in accordance with ANSI/ASTM F 489-77, whereby hair will readily grip the outer surface to facilitate winding hair about the hair roller.
Claims2
A hair roller comprising a tubular body defining an outer surface for receiving hair to be wound thereon, said outer surface being free of projections or depressions exceeding 0.010 inches in height or depth and being formed of a resilient, elastomeric, compressible, and non-porous silicone elastomer material having a Shore durometer A hardness of between about 20 and about 65 and said outer surface having a static coefficient of friction greater than about 50, measured at ambient temperature against dry hardwood on the James machine in accordance with ANSI/ASTM F 489-77, whereby hair will readily grip said outer surface to facilitate winding hair about said hair roller, said tubular body being open at both ends and having a central hair receiving portion and an outer shoulder at each end of said body on opposite sides of said central position, each of said shoulders having an outer diameter greater than the outer diameter of said central portion, each of said shoulders having an outside surface adapted to receive clip means for retaining the hair on the central hair receiving portion of the tubular body, wherein said clip means includes a handle and a plurality of fingers extending outwardly from said handle, said fingers being adapted to overlie said hair roller, said clip further having an arm extending outwardly from said handle and adapted to be received in said tubular body, each of said fingers having a stand off segment adjacent to said arm, said stand off segment being generally parallel to the remainder of said fingers and offset from the axis of each finger, the axis of said stand off segment being farther from said arm than the axis of the remainder of said fingers.
Dependencies are inferred from the claim text.