A drive shaft coupling is provided, such as a coupling used with a formula delivery appliance. The drive shaft coupling generally includes a drive gear and a driven gear, with one of the drive gear and driven gear having a biasing member to allow axial translation. The drive shaft coupling is generally configured to transfer rotation from the drive gear to the driven gear. In one aspect, the drive shaft coupling is capable of alignment and coupling of the drive gear and driven gear upon the radial sliding of the coupling from a non-engagement position to an engagement position.

A drive shaft coupling is provided, such as a coupling used with a formula delivery appliance. The drive shaft coupling generally includes a drive gear and a driven gear, with one of the drive gear and driven gear having a biasing member to allow axial translation. The drive shaft coupling is generally configured to transfer rotation from the drive gear to the driven gear. In one aspect, the drive shaft coupling is capable of alignment and coupling of the drive gear and driven gear upon the radial sliding of the coupling from a non-engagement position to an engagement position.

Embodiments of hair care apparatus and methods are provided generally comprising a location to provision hair care product, an applicator and a manipulator configured to enable concurrent product application and hair manipulation, and may comprise a product heater, configured to heat product provisioned therein, or be configured for use with an external heating source such as a microwave oven, and provide application of heated product at temperatures both safe for hair health and enhanced absorption. Apparatus may comprise a source of pressure, such as a pump or piston, to generate hair product flow through an applicator, and may be configured to receive product in user fillable or prepackaged product cartridges usable in the apparatus, a product chamber within the apparatus or a removable product reservoir useable in the apparatus. An apparatus may further be configured to support a plurality of manipulators, active applicators and passive applicators.

A dispensing brush assembly containing and selectively dispensing a hair care product includes a brush that is selectively manipulated thereby facilitating the brush to groom hair. The brush has a reservoir therein to contain a fluid. A plunger unit is movably coupled to the brush and the plunger unit is selectively manipulated. The plunger unit is in fluid communication with the reservoir to selectively urge the fluid outwardly from the brush. In this way the fluid may be urged onto the hair to enhance grooming.

A dispensing brush assembly containing and selectively dispensing a hair care product includes a brush that is selectively manipulated thereby facilitating the brush to groom hair. The brush has a reservoir therein to contain a fluid. A plunger unit is movably coupled to the brush and the plunger unit is selectively manipulated. The plunger unit is in fluid communication with the reservoir to selectively urge the fluid outwardly from the brush. In this way the fluid may be urged onto the hair to enhance grooming.

A fluid dispensing brush assembly enhancing brushing hair includes a brush that may be manipulated thereby facilitating the brush to brush hair. A handle is removably coupled to the brush and the handle may be gripped. The handle is substantially hollow and the handle may contain a fluid. The handle is in fluid communication with the brush. A pump is coupled to the brush and the pump is selectively manipulated. The pump is in fluid communication with the handle to selectively urge the fluid outwardly from the brush thereby facilitating the fluid to enhance brushing the hair.

A tail comb is disclosed for dispensing a hair product to the roots of a person's hair comprising a comb body, an elongated comb handle outwardly extended from the comb body, a plurality of comb teeth aligned in an array attached at their proximal end to the comb body, extending from and parallel to a longitudinal midline of the body-handle, and an applicator attached to the comb body, wherein the applicator dispenses a hair product to the roots of a person's hair including the person's hair follicles and scalp.

A tail comb is disclosed for dispensing a hair product to the roots of a person's hair comprising a comb body, an elongated comb handle outwardly extended from the comb body, a plurality of comb teeth aligned in an array attached at their proximal end to the comb body, extending from and parallel to a longitudinal midline of the body-handle, and an applicator attached to the comb body, wherein the applicator dispenses a hair product to the roots of a person's hair including the person's hair follicles and scalp.

A cosmetic application device includes a housing for containing a product and an applicator tip having an application surface with an orifice for delivering the product from the housing. The applicator tip includes a brush disposed on a side surface of the applicator tip, spaced apart from the orifice. Various forms for the brush are disclosed including a thermoplastic elastomer and/or variously configured bristles.

A cosmetic application device includes a housing for containing a product and an applicator tip having an application surface with an orifice for delivering the product from the housing. The applicator tip includes a brush disposed on a side surface of the applicator tip, spaced apart from the orifice. Various forms for the brush are disclosed including a thermoplastic elastomer and/or variously configured bristles.