Granted Patent B2

US 12,507,779 · App. 18/563,855 · Granted Dec 30, 2025

Inventors: Thomas Alexander Carlyle (Swindon, GB); Darren Matthew Lewis (Bristol, GB); Henry Licming Lambourn (Malmesbury, GB); Joseph Timm (Bristol, GB)

Assignee: Dyson Technology Limited

A45D2/40A45D1/04A45D2/001H05B6/62A45D2001/045H05B6/48H05B6/54

Abstract

Claims (16)

1 . A hair styling appliance comprising:

a pair of arms having an open position and a closed position, the arms gripping the hair when in the closed position;

a pair of electrodes;

a chamber located between the electrodes for receiving a section of hair; and

a drive unit for applying an alternating voltage to the electrodes to heat dielectrically hair within the chamber,

wherein the electrodes having a fixed spacing and wherein at least one of the arms is moveable to vary a spacing between the arms without varying the spacing between the electrodes.

2 . The hair styling appliance as claimed in claim 1 , wherein the spacing is no greater than 10 mm.

3 . The hair styling appliance as claimed in claim 1 , wherein the spacing is no less than 1 mm.

4 . The hair styling appliance as claimed in claim 1 , wherein the height of the chamber is between 1 mm and 10 mm.

5 . The hair styling appliance as claimed in claim 1 , wherein the electrodes are coated with or housed within a thermally insulating material.

6 . The hair styling appliance as claimed in claim 1 , wherein the appliance comprises a body having a pair of prongs, and each of the electrodes is attached to or housed within a respective prong.

7 . The hair styling appliance as claimed in claim 6 , wherein an end of each of the prongs is chamfered.

8 . The hair styling appliance as claimed in claim 1 , wherein the electrodes are attached to or housed within a body, the arms are attached to the body, and at least one of the arms is moveable relative to the body.

9 . The hair styling appliance as claimed in claim 8 , wherein the at least one of the arms is pivotally attached to the body.

10 . The hair styling appliance as claimed in claim 8 , wherein the appliance comprises a flexible membrane that extends between the body and the at least one of the arms.

11 . The hair styling appliance as claimed in claim 1 , wherein at least one of the arms comprises a gripping portion for gripping the hair, the gripping portion being formed of a resiliently deformable material.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (82)