A hair styling apparatus, the apparatus including heating plate. The heating plate is defined by a free end and an attached end. The free end includes a top plate and a bottom plate that is separated by a gap configured to receive hair to be styled. The top plate and bottom plate are curved around a width of the hair styling apparatus. The gap is adjustable using a lever that is provided on a connecting handle that is connected to the attached end. The hair styling apparatus further includes a heater to heat the heating plate. The connecting handle also includes a gripping portion that enables gripping of the apparatus by a user. The hair styling apparatus also includes a power module to provide power to the heater.

A wireless hair straightener according to an embodiment of the present invention includes a battery charged by an external power supply, a first switch, a first heating resistor, and a second heating resistor which are sequentially connected in series between one end of the external power supply and a ground, a second switch having one end connected to a connection point between the first switch and the first heating resistor and the other end connected to the ground, a third switch having one end connected to a connection point between the first heating resistor and the second heating resistor and the other end connected to one end of the battery, and a control unit that controls on and off operations of the first switch, the second switch, and the third switch, in which the other end of the battery is connected to the ground, and the other end of the external power supply is connected to the ground.

A wireless hair straightener according to an embodiment of the present invention includes a battery charged by an external power supply, a first switch, a first heating resistor, and a second heating resistor which are sequentially connected in series between one end of the external power supply and a ground, a second switch having one end connected to a connection point between the first switch and the first heating resistor and the other end connected to the ground, a third switch having one end connected to a connection point between the first heating resistor and the second heating resistor and the other end connected to one end of the battery, and a control unit that controls on and off operations of the first switch, the second switch, and the third switch, in which the other end of the battery is connected to the ground, and the other end of the external power supply is connected to the ground.

This invention relates to portable heating systems that utilize a portable fuel source. Portable heating systems of the invention generally include a regulator that is configured to vaporize fuel released from a cartridge and to transfer the vaporized fuel to a burner for ignition.

This invention relates to portable heating systems that utilize a portable fuel source. Portable heating systems of the invention generally include a regulator that is configured to vaporize fuel released from a cartridge and to transfer the vaporized fuel to a burner for ignition.

A hairstyling device is provided. The hairstyling device includes sensor equipment configured to generate sensor output dependent on at least one use characteristic of the hairstyling device indicative of current use of the hairstyling device. The hairstyling device includes a controller configured to receive the sensor output from the sensor equipment and process the sensor output using a classification algorithm to obtain classification data, the classification algorithm configured to determine whether the hairstyling device is being used according to a first styling behaviour or a second, different styling behaviour based on the at least one use characteristic of the hairstyling device. The controller is configured to control the hairstyling device to perform an action using the classification data.

A hairstyling device is provided. The hairstyling device includes sensor equipment configured to generate sensor output dependent on at least one use characteristic of the hairstyling device indicative of current use of the hairstyling device. The hairstyling device includes a controller configured to receive the sensor output from the sensor equipment and process the sensor output using a classification algorithm to obtain classification data, the classification algorithm configured to determine whether the hairstyling device is being used according to a first styling behaviour or a second, different styling behaviour based on the at least one use characteristic of the hairstyling device. The controller is configured to control the hairstyling device to perform an action using the classification data.

Methods and apparatus include a hair iron having a controller and a heater between first and second arms movable relative to each other between open and closed positions. The controller connects or not the heater to a line voltage to heat hair when placed between the arms during use. A proportional-integral-derivative (PID) controller communicates with a thermistor measuring a current temperature of the heater and makes requests of the controller to operate the heater at a setpoint temperature. In various embodiments, the heater heats to full power during warm-up and operates thereafter at lower temperatures based on a reading of the line voltage and a time to adjust the current temperature to the desired setpoint temperature.

Methods and apparatus include a hair iron having a controller and a heater between first and second arms movable relative to each other between open and closed positions. The controller connects or not the heater to a line voltage to heat hair when placed between the arms during use. A proportional-integral-derivative (PID) controller communicates with a thermistor measuring a current temperature of the heater and makes requests of the controller to operate the heater at a setpoint temperature. In various embodiments, the heater heats to full power during warm-up and operates thereafter at lower temperatures based on a reading of the line voltage and a time to adjust the current temperature to the desired setpoint temperature.

A hairstyling apparatus is shown. The apparatus includes a heated barrel with a central axis. It also includes a heating element connected with the barrel and a rotating member located an end of the barrel and configured to rotate around the central axis of the barrel. The rotating member includes at least one a tab extending along a longitudinal length of the hairstyling surface over at least a portion of a longitudinally extending portion of the hairstyling surface. At least one rod with at least one comb attached to said at least one tab. The rod is heated by the heating element during use of the apparatus.