Hair styling apparatus

A hair styling apparatus comprising a pair of closable jaws, the closable jaws comprising a first jaw and a second jaw;

• wherein the closable jaws have complementary shapes, the first jaw defining a curved ridge including a first side and a second side coupled by a curved apex portion, and the second jaw defining a curved recess including a first side and a second side coupled by a curved base;
• wherein the first and the second jaws are moveable from an open position, in which a first hair contacting surface of the first side of the curved ridge and a second hair contacting surface of the second side of the curved ridge, are spaced apart respectively from a first hair contacting surface of the first side of the curved recess and a second hair contacting surface of the second side of the curved recess, to a closed position in which the first hair contacting surface of the curved ridge is adjacent the first hair contacting surface of the curved recess and the second hair contacting surface of the curved ridge is adjacent the second hair contacting surface of the curved recess;
• wherein the first side and the second side of one or both of the first jaw and the second jaw includes at least one heater such that, when the first jaw and the second jaws are moved to a closed position, hair is heated in a first heating region between the first side of the curved ridge of the first jaw and the first side of the curved recess of the second jaw, and in a second heating region between the second side of the curved ridge of the first jaw and the second side of the curved recess of the second jaw;
• wherein the curved apex portion of the curved ridge and the curved base portion of the curved recess define an insulated region in which, when the first jaw and the second jaw are moved to the closed position, hair is not heated;
• wherein the curved recess of first side of the second jaw has a first curved longitudinal surface including a first active cooling region on which hair is cooled and curved, and the second side of the second jaw has a second curved longitudinal surface including a second active cooling region on which hair is cooled and curved;
• wherein a transverse cross section through the second jaw defines a forward curve defined by the curved recess of the second jaw, into which the curved ridge of the first jaw fits, the transverse cross section further defining a first reverse curve and a second reverse curve, wherein the forward curve links the first reverse curve and the second reverse curve, respectively, and wherein the first reverse curve includes the first active cooling region and the second reverse curve includes the second active cooling region;
• wherein the first side of the first jaw includes a first curved flange that is curved in a shape complementary to the first active cooling region and the second side of said first jaw has a second curved flange that is curved in a shape complementary to the second active cooling region;
• and
• wherein the first curved flange extends across a portion of the first active cooling region and the second curved flange extends across a part but not all of the second active cooling region, so that, in use, the first and the second curved flanges guide a user's hair onto the first or the second active cooling regions when the hair styling apparatus is held by the user in a hair curling orientation, and allowing the user's hair to avoid the first or the second active cooling regions when the hair styling apparatus is held by the user in a hair straightening orientation.