Heating plate for a hair straightener

Abstract

A heating plate for a hair straightener including a substantially planar hair engagement surface and at least a first and a second edge defining a periphery of a first end of the hair engagement surface, wherein at least one of the first and second edges includes a tapered-shape profile.

1 . A heating plate for a hair straightener including a substantially planar hair engagement surface and at least a first and a second edge defining a periphery of a first end of the hair engagement surface, wherein at least one of the first and second edges includes a tapered-shape profile. 
     
     
         2 . A heating plate as claimed in  claim 1  wherein the tapered-shape profile includes at least one of a concave shape profile, a convex-shape profile, and a triangular-shape profile. 
     
     
         3 . A heating plate as claimed in  claim 1  wherein both the first and second edges include tapered shape profiles. 
     
     
         4 . A heating plate as claimed in  claim 3  wherein the tapered shape profile of the first edge is substantially symmetrical with the shape profile of the second edge. 
     
     
         5 . A heating plate as claimed in  claim 4  wherein the first edge includes a shape profile which is substantially asymmetrical with the shape profile of the second edge. 
     
     
         6 . A heating plate as claimed in  claim 5  wherein the first edge and second edge includes a different tapered-shape profiles. 
     
     
         7 . A heating plate as claimed in  claim 6  wherein the first edge includes a concurve-shape profile and the second edge includes a triangular-shape profile. 
     
     
         8 . A heating plate as claimed in  claim 6  wherein the first edge includes a concurve-shape profile and the second edge includes a concave-shape profile. 
     
     
         9 . A heating plate as claimed in  claim 6  wherein the first edge includes a triangular shape profile and the second edge includes a concave-shape profile. 
     
     
         10 . A heating plate as claimed in  claim 6  wherein the shape profiles of the first and second edges cooperatively and substantially resemble a partial-ellipse shape profile. 
     
     
         11 . A heating plate as claimed in  claim 6  wherein the shape profiles of the first and second edges cooperatively and substantially resemble a dome-shape profile. 
     
     
         12 . A heating plate as claimed in  claim 6  wherein the shape profiles of the first and second edges cooperatively and substantially resemble a bullet-head shape profile. 
     
     
         13 . A heating plate as claimed in  claim 6  wherein the shape profiles of the first and second edges cooperatively and substantially resemble an isosceles triangle shape profile. 
     
     
         14 . A heating plate as claimed in  claim 1  wherein the first and second edges of the heating plate are releasably attachable. 
     
     
         15 . A heating plate as claimed in  claim 1  including an aluminium material. 
     
     
         16 . A heating plate for a hair straightener including a substantially planar hair engagement surface and at least a first and a second edge defining a periphery of a first end of the hair engagement surface, wherein at least one of the first and second edges includes a curved profile. 
     
     
         17 . A heating plate as claimed in  claim 16  wherein the curved profile includes at least one of a concurve profile and a concave profile. 
     
     
         18 . A hair straightener including a heating plate as claimed in  claim 1 . 
     
     
         19 . A hair straightener as claimed in  claim 18  including a frame having first and second rotatably coupled frame arms adapted for mounting a corresponding first and second heating plate thereon. 
     
     
         20 . A hair straightener as claimed in  claim 18  wherein the first and second rotatably coupled frame arms include substantially similar tapered shape profiles as the first and second heating plates which are mounted thereon respectively. 
     
     
         21 . A hair straightener as claimed in  claim 18  wherein at least one of the first and second edges of at least one of the first and second heating plates are releasably attachable to the frame. 
     
     
         22 . A heating plate as claimed in  claim 1  in which the heating plate is formed by sintered metal process. 
     
     
         23 . A heating plate as claimed in  claim 22 , in which the heating plate includes at least aluminium. 
     
     
         24 . A method of forming a heating plate as claimed in  claim 1  wherein the heating plate is formed by punching an outline of the heating plate from a sheet of metal. 
     
     
         25 . A method of forming a heating plate as claimed in  claim 22  wherein the metal includes aluminium. 
     
     
         26 . A heating plate for a hair straightener, said heating plate being generally elongate and having a substantially planar hair engagement surface for engagement with and application of heat to the hair of a subject, and having a first end portion, an opposed second end, a longitudinal axis extending in a direction of from the second end towards the first end, and a transverse axis generally normal to the longitudinal axis and being generally parallel to the hair engagement surface;
 wherein the first end portion is of a reduced transverse taper in the longitudinal direction towards the first end; and   wherein the first end portion has an external periphery and is tapered in a manner so as to allow hair adjacent the first end portion to be engaged with the engagement surface when the external periphery is adjacent the head of a subject whilst in use.   
     
     
         27 . A hair straightener for straightening the hair of the subject including at least one heating plate according to  claim 26 . 
     
     
         28 . A hair straightener as claimed in  claim 27  including a second heating plate according to  claim 26 , wherein said first and second heating plates are disposed such that their hair engagement surfaces are in an opposed relationship and moveable towards each other so as to allow hair of a subject to be abutted therebetween for straightening of said hair. 
     
     
         29 . A hair straightener as claimed in  claim 28 , further including a frame having first and second rotatably coupled frame arms adapted for mounting the first and second heating plates thereon. 
     
     
         30 . A hair straightener as claimed in  claim 28 , wherein the first and second rotatably coupled frame arms include substantially similar tapered shape profiles as the first and second heating plates which are mounted thereon respectively. 
     
     
         31 . A hair straightener as claimed in  claim 28  wherein at least one of the first and second edges of at least one of the first and second heating plates are releasably attachable to the frame.