An applicator that causes a liquid applying material accumulated inside, for example, a cosmetic tool, such as an eye liner and an eyebrow pencil, or a gray-hair partially dyeing tool for hair, an eyebrow, or a similar part, to infiltrate into an application portion to use this liquid applying material for application or drawing from a distal end application portion.

A custom hair coloring container, components of the container, and method of use and doing business. In one embodiment, the container includes a container body, a hair colorant container section of the container body removably mountable to a peroxide container section of the container body, and the hair colorant container section and the peroxide container section collectively forming a cavity with an inside surface. The hair colorant container section may include a first interior seal threadedly engaged with the inside surface within the hair colorant container, and the peroxide container section may include second interior seal threadedly engaged with the inside surface within the peroxide container section.

Laser-drilling apparatus includes a gas-discharge for laser emitting laser-radiation pulses, and two acousto-optic modulators (AOMs). The laser radiation pulses are characterized as having two temporal central portions between temporal leading and trailing edge portions. The AOMs are arranged to spatially separate the central temporal portions of the pulses from each other and from the leading and trailing edge portions of the pulses.

A hair color retouch kit, components of the kit, and methods of use and doing business. The kit can include one or more mixing containers. In one embodiment, a mixing container provides a colorant compartment for sealingly or separately containing a custom hair coloring formulation and peroxide compartment for sealingly or separately containing peroxide. The mixing container(s) can be used by a professional hair colorist to provide a hair coloring client with custom hair coloring formulation and peroxide that can be mixed and applied by or for the client to hair regrowth that occurs after a hair coloring session with the professional. The kit can provide other components as desired, such as a mixing spatula, an applicator brush, and instructions for example. The kit can be packaged in attractive and efficient packaging, include indicia identifying the source of the kit, and be customized to promote the colorist, salon, or other entity.

A formula delivery appliance generally includes a formula delivery head having features to mix, direct, and distribute formulation through nozzles to a desired location, such as the hair or scalp of a user. In this regard, the formula delivery head may include a plurality of nozzles configured to discharge the formulation at a desired flow rate. In some instances, the flow rate across the plurality of nozzles is controlled such that each nozzle has a flow rate within a specified percentage of the average flow rate across the plurality of nozzles.

A formula delivery system can be used in conjunction with hair and scalp treatment appliances to supply a hair treatment formulation to the appliance. In one aspect, the formula delivery system delivers hair coloring formulation to the appliance. Formula delivery systems of the present disclosure generally include at least one fluid container configured to retain a volume of formulation for delivery of the formulation to a hair coloring appliance. In this regard, the formula delivery system may be configured to removably couple to an inlet member of the appliance that allows the appliance to draw the formulation from the fluid container for use within the appliance.

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 device includes a pump and a brushhead. The pump includes a housing and plunger. The housing has an upper opening, a cavity configured to store a composition therein, and a tip having a dispensing opening. The plunger is slidably disposed within housing such that it is moveable with respect to the housing. The brushhead includes a first plurality of bristle bores and a second plurality of bristle bores, each of which extend from a bottom surface of the brushhead towards an opposing top surface and have a bristle bundle extending therefrom. The brushhead includes a generally central throughhole extending between the bottom surface and the opposing top surface. The pump is coupled to the brushhead via the tip of the housing such that actuation of the plunger causes a portion of the composition stored in the housing to be dispensed on at least a portion of the bristle bundles.

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 device includes a pump and a brushhead. The pump includes a housing and plunger. The housing has an upper opening, a cavity configured to store a composition therein, and a tip having a dispensing opening. The plunger is slidably disposed within housing such that it is moveable with respect to the housing. The brushhead includes a first plurality of bristle bores and a second plurality of bristle bores, each of which extend from a bottom surface of the brushhead towards an opposing top surface and have a bristle bundle extending therefrom. The brushhead includes a generally central throughhole extending between the bottom surface and the opposing top surface. The pump is coupled to the brushhead via the tip of the housing such that actuation of the plunger causes a portion of the composition stored in the housing to be dispensed on at least a portion of the bristle bundles.