A hair iron includes two longitudinally extending arms each having a ceramic heater. Users place hair between the heaters during use. A controller coordinates timing and voltage conditions to heat the heaters to avoid light flicker and power harmonics. Thermistors provide current heater temperatures of the heaters and a controller calculates a desired heating power. The heating power includes application to the heaters of various half-cycles of AC power from an external AC line voltage.

A styling device for hair, comprising protrusions, wherein the protrusions comprise a blend of a high molecular weight polyethylene oxide and a water insoluble polymer.

The invention relates to a hair styling device, and in particular a multifunctional hair styling device having components which can carry out a number of different (and distinct) styling operations. The invention provides a hair styling device having a body portion and a handle portion, the body portion having an air inlet and an air outlet, an impeller between the air inlet and the air outlet and an electric motor to rotate the impeller, the handle portion having a pair of heating panels. The handle portion is separable from the body portion and can be used alone as a hair straighter, or the device can be used as a hair dryer with the handle portion attached to the body portion. The body portion can optionally include a hair curling chamber adapted for hair curling.

The invention relates to a hair styling device, and in particular a multifunctional hair styling device having components which can carry out a number of different (and distinct) styling operations. The invention provides a hair styling device having a body portion and a handle portion, the body portion having an air inlet and an air outlet, an impeller between the air inlet and the air outlet and an electric motor to rotate the impeller, the handle portion having a pair of heating panels. The handle portion is separable from the body portion and can be used alone as a hair straighter, or the device can be used as a hair dryer with the handle portion attached to the body portion. The body portion can optionally include a hair curling chamber adapted for hair curling.

A shoulder assembly for connecting two arms of a hair styling apparatus, the shoulder assembly comprising: a housing; a first coupling member which is attached to the housing and which projects from the housing to couple the housing to a first arm; a second coupling member which is attached to the housing and which projects from the housing to couple the housing to a second arm; wherein both the first and second coupling members are flexible so that the first arm is movable relative to the second arm when the shoulder assembly is connected to the first and second arms.

A shoulder assembly for connecting two arms of a hair styling apparatus, the shoulder assembly comprising: a housing; a first coupling member which is attached to the housing and which projects from the housing to couple the housing to a first arm; a second coupling member which is attached to the housing and which projects from the housing to couple the housing to a second arm; wherein both the first and second coupling members are flexible so that the first arm is movable relative to the second arm when the shoulder assembly is connected to the first and second arms.

A hair styling device includes an upper gripping portion, a lower gripping portion, a hinge structure connecting the upper gripping portion and the lower gripping portion, an upper clamping head connected to the upper gripping portion and a lower clamping head connected to the lower gripping portion. The upper clamping head includes an upper clamping surface and a top, The lower clamping head includes a lower clamping surface and a bottom. The lower clamping surface and the upper clamping surface are arranged to be paired together when the hair styling device is in a closed position. The upper clamping surface has an upper twisted deflection angle with respect to the upper gripping portion. The lower clamping surface has a lower twisted deflection angle with respect to the lower gripping portion. The upper twisted deflection angle is equal to the lower twisted deflection angle.

A hair care device (100) comprises a heat source (103) for heating hair up till a first temperature that is no more than 150° C. (and thus lower than a critical temperature at which hair cuticle damage will occur), and a radiation source (102) for—in combination with heat from the heat source (103)—selectively heating a hair cortex to a second temperature exceeding the first temperature and sufficiently high for hair styling.

A hair care device (100) comprises a heat source (103) for heating hair up till a first temperature that is no more than 150° C. (and thus lower than a critical temperature at which hair cuticle damage will occur), and a radiation source (102) for—in combination with heat from the heat source (103)—selectively heating a hair cortex to a second temperature exceeding the first temperature and sufficiently high for hair styling.

The present invention provides a heating apparatus for heating a load. The heating apparatus comprises a heater having a heating element for receiving electrical power and for converting the electrical power into heat to heat a heating surface of the heater. The heating apparatus also comprises a temperature sensor for sensing and outputting a measurement of the temperature of the heating element, a power actuator for providing the electrical power to the heating element of the heater, a power sensor for sensing and outputting a measurement of the power provided to the heating element by the power actuator, and control circuitry for controlling the power actuator to control the power delivered by the power actuator to the heating element. The control circuitry is configured to receive the temperature measurement from the temperature sensor, receive the power measurement from the power sensor, combine the temperature measurement and the power measurement, and control the power actuator in dependence upon the combined temperature measurement and power measurement. This ensures that the temperature of the heating surface is constant throughout a period when the load is applied.