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US 2012/0267358 A1Published application
Induction heated hair rollers
AssigneeNext Row Limited
InventorAdam Floyd
Life of this patent
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Abstract
A hair roller which can be heated by induction has a cylindrical core (1) formed of ferromagnetic material enclosed within a heat storage layer (2) which is heated by conduction from the core. The layer (2) is formed of cellular silicone rubber which modifies the rate of heat transfer to an outer gripping layer (4). An end cap (5) incorporates a thermo-sensitive substance (10) which changes colour when the roller is heated to its working temperature. The roller can be handled immediately after heating and provides a sustained level of heat output.
Claims5
A hair roller having:
- a hollow core (1) formed of a material which can be heated by electromagnetic induction;
- a heat storage layer (2), which can be heated by conduction, surrounding the hollow core;
- and
- an outer gripping layer (4) covering the heat storage layer;
- characterised in that
- the heat storage layer (2) comprises a resilient cellular material which modifies the rate of heat transfer from the hollow core (1) to the outer gripping layer (4).
3 more elements
Dependencies are inferred from the claim text.