A hair-styling device may include a pair of articulated jaws having respective heating plates. At least one cartridge configured to contain a liquid may be included in one of or both of the jaws. The cartridge includes an ultrasonic transducer with micro-perforations configured to transform the liquid into a dispersion of droplets, and an outlet configured to deliver the dispersion of droplets, through a delivery cavity situated in at least one of the heating plates, to discharge ports distributed over a surface of the heating plate.

A hair-styling device may include a pair of articulated jaws having respective heating plates. At least one cartridge configured to contain a liquid may be included in one of or both of the jaws. The cartridge includes an ultrasonic transducer with micro-perforations configured to transform the liquid into a dispersion of droplets, and an outlet configured to deliver the dispersion of droplets, through a delivery cavity situated in at least one of the heating plates, to discharge ports distributed over a surface of the heating plate.

This invention relates to apparatus and methods for regulating a parameter on a handheld appliance, such as a hair styling appliance. A hair styling apparatus comprises a body having at least one arm bearing a hair styling heater; a temperature sensor arranged to sense a temperature of the hair styling heater and generate a temperature sense signal; and a power supply unit comprising a magnetic energy transfer element, an AC input coupled to a first side of the magnetic energy transfer element, a heater drive output coupled to a second side of the magnetic energy transfer element and to the hair styling heater to power said hair styling heater, and a power controller configured to regulate the heater drive output. A power controller is coupled to the temperature sense signal and configured to regulate the heater drive output of the power supply so as to control the temperature of the hair styling heater responsive to the temperature sense signal.

This invention relates to apparatus and methods for regulating a parameter on a handheld appliance, such as a hair styling appliance. A hair styling apparatus comprises a body having at least one arm bearing a hair styling heater; a temperature sensor arranged to sense a temperature of the hair styling heater and generate a temperature sense signal; and a power supply unit comprising a magnetic energy transfer element, an AC input coupled to a first side of the magnetic energy transfer element, a heater drive output coupled to a second side of the magnetic energy transfer element and to the hair styling heater to power said hair styling heater, and a power controller configured to regulate the heater drive output. A power controller is coupled to the temperature sense signal and configured to regulate the heater drive output of the power supply so as to control the temperature of the hair styling heater responsive to the temperature sense signal.

A cordless hair care appliance easily convertible between a curling wand and a curling iron. The appliance features a removable clamp formed as a ring portion and hinged clamp, where the ring portion slidably fits onto the barrel of the curling wand. The appliance has an enlarged diameter portion at the interface between the barrel and a main body. The removable clamp is friction fit to the barrel when slid into place at the interface. The appliance may operate by battery alone or using battery plus a DC current supplied by a corded AC adaptor. An internal processing unit manages power usage and determines whether the device is operating in battery mode or corded mode.

The invention concerns a device (10) for treating the hair, comprising two arms (12, 4) that are able to move relative to one another between a first opened configuration for inserting hair between the arms (12, 14) and a second closed configuration for treating the hair, at least one of the arms (12, 14) comprising: a shell, a support housed in said shell, a treatment plate supported by the support, an electrical heating element received in a housing defined between the support and an inner face of the treatment plate, a first sealing element sandwiched between the support and the treatment plate, a second sealing element, wherein the second sealing element is sandwiched between the support and the shell.

A hair-styling device serves to curl or wave hair. Said hair-styling device comprises two styling bodies 5, 5.1, which interact with each other to style the hair and can be rotated about the longitudinal axis of the styling bodies and of which at least one of the styling bodies 5, 5.1 is driven, which styling bodies 5, 5.1 have a shell surface contoured by elevations and recesses and are arranged in relation to each other in such a way that complementary contours of the two styling bodies 5, 5.1 mesh in the course of rotation of the two styling bodies. The styling bodies 5, 5.1 have a bone-shaped cross-sectional geometry having two head sections 7, 7.1 designed with a shell surface 8 that is convexly rounded at least in some sections and having a tapered central section 6 located between the head sections and designed with a concave shell surface. The radius of curvature in the region of the central apex 9 of the head sections 7, 7.1 of the one styling body 5, 5.1, 5.2 corresponds to the radius of curvature of the tapered central section 6 of the other styling body. The axis of rotation 11, 11.1 of the styling bodies (5, 5.1) is arranged in the central section 6 centrally between the central apexes 9 of the head sections 7, 7.1.

A hair styling device and methods are disclosed. The device has a first blade section comprising a first blade section heating element having a first heating element surface. The device has a second blade section rotatably coupled to the first blade section via a pivoting device and configured to rotate about a pivot axis, wherein, the second blade section comprises, a second blade section heating element having a second heating element surface. The pivot axis is not co-planar with the first and second heating element surfaces.

A hair styling device and methods are disclosed. The device has a first blade section comprising a first blade section heating element having a first heating element surface. The device has a second blade section rotatably coupled to the first blade section via a pivoting device and configured to rotate about a pivot axis, wherein, the second blade section comprises, a second blade section heating element having a second heating element surface. The pivot axis is not co-planar with the first and second heating element surfaces.

A hair styling apparatus includes a plurality of heater electrodes which heat one or more hair styling heaters, a power source for powering the plurality of heater electrodes and a controller configured to control powering of the plurality of heater electrodes from the power source. The plurality of heaters includes a first subset and a second subset of heaters. The controller is configured to, in a first mode of operation; control the power source so that the first and second subsets are not simultaneously powered.