Hair roller

• US 4,382,447 A
• Filed: 04/16/1981
• Issued: 05/10/1983
• Est. Priority Date: 04/16/1981
• Status: Expired due to Term

• Current Assignee: Dov Z. Glucksman
• Original Assignee: Dov Z. Glucksman
• Inventors: Glucksman, Dov Z.
• Primary Examiner(s): McNeill, G. E.
• Application Number:
  US06/254,869
• Time in Patent Office: 754 Days
• Field of Search: 132/33 R, 132/9, 132/40, 132/42
• US Class Current: 132/233
• CPC Class Codes: A45D 4/16 Independent devices characterised by heating the hair-curling or hair-waving means before use A45D1/20 takes precedence

Abstract

A hair roller adapted to be heated by being positioned on a hot post of a hair setting unit, consists of a plastic, cylindrical and hollow outer body, provided with outstanding teeth on its outside surface. It is closed at its upper end and open at its lower end, its hollow portion being cylindrical in its upper part, extending to about two thirds of its length, and the remaining lower third is tapered towards the lower opening. A tubular insert, made of a resilient aluminum alloy, extends the length of the hollow portion. It is longitudinally slit over its entire length, and the two edges of the slit extend to both sides of an inwardly projecting longitudinal ridge provided in the cylindrical part of the hollow portion. The insert is provided with an outwardly projecting lug on one edge of the slit, which engages with a perforation or a recess in the outer body. The insert is slotted by parallel slots extending from its lower end as far as the tapered hollow portion, a feature permitting positioning of the roller on a frusto-conical, heated post of a hair setter unit in metal-to-metal contact over the entire slotted portion.

Claims

1. A hair roller adapted to be heated by being positioned on a cone-frustum shaped post of a hair roller heating apparatus, consisting of a hollow, cylindrical outer body, of a plastic material, provided with external hair gripping means, said body having a closed upper end and an open lower end, its hollow portion being cylindrical in its upper part, and tapering outwardly from the lower end of said cylindrical portion towards the lower open end;

and of a metallic insert in the shape of a cylindrical tube of a length substantially equal to the length of the hollow portion of said outer body, said insert being slit longitudinally over its entire length, and being provided with a plurality of slots extending from the lower edge of said tube to a predetermined distance from said lower edge.

2. The hair roller of claim 1, wherein said cylindrical hollow portion in said outer body extends for about two thirds, and the tapering portion for about one third of the entire length of said hollow portion.

3. The hair roller of claim 1, wherein said metallic insert is provided with parallel, longitudinal slots of a length commensurate with the length of said tapering portion of said outer body.

4. The hair roller of claim 1, wherein said cylindrical portion of said outer body is provided with a longitudinal, inwardly projecting ridge, which engages with the slit of said insert.

5. The hair roller of claim 1, wherein said insert is provided with an outwardly projecting lug.

6. The hair roller of claim 5, wherein said outer body is provided with a perforation corresponding to said outwardly projecting lug, and wherein said lug engages with said perforation.

7. The hair roller of claim 1, wherein said insert is made of a resilient aluminum alloy.

8. The hair roller of claim 7, wherein said insert is made of a flat sheet of an aluminum alloy, bent into tubular shape.

9. The hair roller of claim 8 wherein said insert, prior to its insertion into said cylindrical outer body, is in the shape of a longitudinally slit, open cylinder of a diameter initially larger than the inner diameter of said outer body.