US2025024925A1PendingUtilityA1

Hair styling appliance

Assignee: DYSON TECHNOLOGY LTDPriority: Dec 14, 2021Filed: Oct 13, 2022Published: Jan 23, 2025
Est. expiryDec 14, 2041(~15.3 yrs left)· nominal 20-yr term from priority
A45D 2/001A45D 1/06A45D 2/002A45D 1/14A45D 1/04A45D 1/18
65
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Claims

Abstract

A hair straightener includes a first arm with a first hair contact surface such as a first plate, and a second arm with a second hair contact surface such as a second plate. The second arm is coupled for movement towards the first arm. The first and second hair contact surfaces are configured to capture a tress of hair between them when the first and second arms are moved towards each other in use. The first hair contact surface defines a series of tress-corralling recesses disposed along its length, and the second hair contact surface does not define a tress-corralling recess or defines shallower tress-corralling recesses than those of the first plate.

Claims

exact text as granted — not AI-modified
1 . A hair straightener comprising:
 a first arm comprising a first hair contact surface; and   a second arm comprising a second hair contact surface, the second arm being coupled for movement towards the first arm;   wherein:   the first and second hair contact surfaces are configured to capture a tress of hair between them when the first and second arms are moved towards each other in use;   the first hair contact surface defines a series of tress-corralling recesses disposed along its length; and   the second hair contact surface does not define a tress-corralling recess.   
     
     
         2 . The hair straightener of  claim 1 , wherein the first hair contact surface is scalloped in longitudinal section, and each scallop defines one of the tress-corralling recesses. 
     
     
         3 . The hair straightener of  claim 1 , wherein the first hair contact surface is sinuate in longitudinal section, and each trough of the sinuate section defines one of the tress-corralling recesses. 
     
     
         4 . The hair straightener of  claim 1 , wherein the first hair contact surface comprises a plurality of teeth in longitudinal section, and a region between each adjacent pair of the teeth defines one of the tress-corralling recesses. 
     
     
         5 . The hair straightener of  claim 1 , wherein the second hair contact surface is flat. 
     
     
         6 . The hair straightener of  claim 1 , wherein the second hair contact surface is, in longitudinal section, convex in a direction of the first hair contact surface. 
     
     
         7 . A hair straightener comprising:
 a first arm comprising a first hair contact surface; and   a second arm comprising a second hair contact surface, the second arm being coupled for movement towards the first arm;   wherein:   the first and second hair contact surfaces are configured to capture a tress of hair between them when the first and second arms are moved towards each other in use;   the first hair contact surface defines a first series of tress-corralling recesses disposed along its length; and   the second hair contact surface defines additional tress-corralling recesses that are shallower than the first series of tress-corralling recesses.   
     
     
         8 . The hair straightener of  claim 7 , wherein the first hair contact surface is scalloped in longitudinal section, and each scallop defines one of the tress-corralling recesses. 
     
     
         9 . The hair straightener of  claim 7 , wherein the first hair contact surface is sinuate in longitudinal section, and each trough of the sinuate section defines one of the tress-corralling recesses. 
     
     
         10 . The hair straightener of  claim 7 , wherein the first hair contact surface comprises a plurality of teeth in longitudinal section, and a region between each adjacent pair of the teeth defines one of the tress-corralling recesses. 
     
     
         11 . The hair straightener of  claim 7 , wherein the second hair contact surface comprises an identical number of tress-corralling recesses as the first hair contact surface. 
     
     
         12 . The hair straightener of  claim 7 , wherein the second hair contact surface comprises fewer tress-corralling recesses than the first hair contact surface.

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