An impeller assembly configured to produce low noise is provided. In one embodiment, an impeller assembly is provided having a hollow cylindrical hub body with a sleeve extending therethrough. The sleeve is configured to receive a driveshaft of a motor to couple the impeller assembly to the motor. The impeller assembly includes a plurality of impeller blades extending radially outward therefrom. Each blade of the plurality of impeller blades is unevenly distributed around a circumference of the hub body.

Various exemplary attachments for hair care appliances and methods of using attachments for hair care appliances are provided. In general, a hair care attachment in an exemplary embodiment is in the form of a brush accessory that has a hollow body having first and second region, an attachment collar at a first end of the hollow body and having an inlet for receiving airflow, a plurality of bristles positioned along the first region of the hollow body, a plurality of outlet openings positioned along the first region of the hollow body adjacent the plurality of bristles, and a heater assembly positioned along the second region of the hollow body.

Various exemplary attachments for hair care appliances and methods of using attachments for hair care appliances are provided. In general, a hair care attachment in an exemplary embodiment is in the form of a brush accessory that has a hollow body having first and second region, an attachment collar at a first end of the hollow body and having an inlet for receiving airflow, a plurality of bristles positioned along the first region of the hollow body, a plurality of outlet openings positioned along the first region of the hollow body adjacent the plurality of bristles, and a heater assembly positioned along the second region of the hollow body.

A hair dryer apparatus includes a housing with a surrounding sidewall having an inner surface defining an interior and an opposing outer surface, further the sidewall having an inlet and an opposing outlet. In addition, the hair dryer apparatus includes a motor driven blower disposed within the interior, the blower drives airflow from the inlet to the outlet. Additionally, the hair dryer apparatus includes a handle in the form of a clevis shape with the clevis shape having a pair of symmetrically opposed arcuate extensions that have a common origination from a handle stem extension portion that has an opposing free end portion, each arcuate extension terminates in a pivotal connection to the inlet outer surface, the pivotal connections are about a pivotal axis. Operationally, the handle stem extension in a longwise manner has a pivotal movement range from being co-axial to the airflow to being perpendicular to the airflow.

A hair dryer apparatus includes a housing with a surrounding sidewall having an inner surface defining an interior and an opposing outer surface, further the sidewall having an inlet and an opposing outlet. In addition, the hair dryer apparatus includes a motor driven blower disposed within the interior, the blower drives airflow from the inlet to the outlet. Additionally, the hair dryer apparatus includes a handle in the form of a clevis shape with the clevis shape having a pair of symmetrically opposed arcuate extensions that have a common origination from a handle stem extension portion that has an opposing free end portion, each arcuate extension terminates in a pivotal connection to the inlet outer surface, the pivotal connections are about a pivotal axis. Operationally, the handle stem extension in a longwise manner has a pivotal movement range from being co-axial to the airflow to being perpendicular to the airflow.

An adjustable diameter mechanism includes a plurality of cylinder portions, each of the cylinder portions comprising an arcuate portion of a cylinder and extending along an arc of less than or about 120 degrees of a 360 degree circle and having an inner side and an outer side. The inner side of the cylinder portions are coupled to first ends of a scissors mechanism at a pivot point and a slot of the cylinder portions, the scissors mechanism having a first and a second piece pivotally coupled at a pivot coupling, respective second ends of the scissors mechanism coupled to a respective pair of threaded bolts engaged with a screw having opposing threads meeting at a central point thereof.

An adjustable diameter mechanism includes a plurality of cylinder portions, each of the cylinder portions comprising an arcuate portion of a cylinder and extending along an arc of less than or about 120 degrees of a 360 degree circle and having an inner side and an outer side. The inner side of the cylinder portions are coupled to first ends of a scissors mechanism at a pivot point and a slot of the cylinder portions, the scissors mechanism having a first and a second piece pivotally coupled at a pivot coupling, respective second ends of the scissors mechanism coupled to a respective pair of threaded bolts engaged with a screw having opposing threads meeting at a central point thereof.

An attachment for a hand held appliance comprising a body having a first wall; a second wall; and a slot formed along at least part of the length of the attachment, wherein the slot is defined on a first side by a surface of the first wall and on a second side by a surface of the second wall. The first wall may be generally tubular. The surface of the second wall may be substantially linear. The second wall may extend out from the first wall. The second wall may be moveable or rotatable relative to the first wall. The second wall may be generally triangular. The second wall may have a first indexed position defining a first slot position. The second wall may have a second indexed position defining a second slot position. An indexed position may be defined by a detent mechanism.

An attachment for a hand held appliance comprising a body having a first wall; a second wall; and a slot formed along at least part of the length of the attachment, wherein the slot is defined on a first side by a surface of the first wall and on a second side by a surface of the second wall. The first wall may be generally tubular. The surface of the second wall may be substantially linear. The second wall may extend out from the first wall. The second wall may be moveable or rotatable relative to the first wall. The second wall may be generally triangular. The second wall may have a first indexed position defining a first slot position. The second wall may have a second indexed position defining a second slot position. An indexed position may be defined by a detent mechanism.

An attachment for a hair care appliance is provided and can include an elongated body extending between proximal and distal ends, an air inlet at the proximal end, a fluid flow path extending from the air inlet toward the distal end, a plurality of air outlets for allowing air to exit the body, and a plurality of bristles extending from the body. The attachment can also include a baffle disposed within the body along the fluid flow path. The baffle can divert air received at the air inlet to the plurality of air outlets. The baffle can have a proximal region configured to reduce a volume of fluid along the fluid flow path and to radially distribute the fluid within the body, a distal region configured to increase an air pressure of the fluid, and an intermediate region configured to reduce air pressure provided to the distal region.