An interdental brush including a spine of twisted wire, bristles projecting from the spine of the twisted wire, a protective tip at the end of the twisted wire above the bristles where the protective tip includes a ductile cover enveloping the end of the twisted wire, molded and attached to the end of the wire and centered around the end of the wire, and where the ductile cover has a plurality of protrusions, is dome shaped at the closed end, and chamfer shaped at the bristle end.

The present invention relates to a method for removing a coating from a defined area of a high pressure turbine part comprising the steps of: securing a guide to said turbine part, said guide both exposing said defined area while protecting adjacent areas; repeatedly inserting and withdrawing a brush through an opening in said guide which directs said brush to impinge said defined area and remove said coating. The invention also relates to a guide used in the aforementioned method.

A mold insert has at least one filament cavity and a stack of at least a first and second insert plates, wherein the first plate has a front face that closely abuts a front face of the second insert plate. A portion of the a filament cavity is provided in at least one of the front faces of the first and second insert plates such that the filament cavity is open at a top surface of the mold insert but does not extend to a bottom surface of the mold insert. A venting cavity is provided in the same front face of the insert plate in which the portion of the at least one filament cavity is provided. The venting cavity, which is in air-conducting connection with the blind-hole end of the filament cavity, has a depth between 1 μm and 20 μm. A method of manufacturing the mold insert includes providing first and second insert plates, forming a portion of a filament cavity into at least one of the front faces of the insert plates, forming a venting cavity into the front face with the filament cavity, and bringing the front faces of the plates into close abutment to form a filament cavity.

A brush for cleaning the interior of a bottle or container is provided. The brush includes at least one cleaning element installed on the distal end of a shaft. The proximal end of the shaft is shaped to be gripped by a hand of a user. The distal end of the shaft includes at least one notch formed therein, where the notch has a proximal side wall, a distal side wall oppositely disposed from the proximal side wall, and a middle section disposed between the proximal side wall and the distal side wall. Each cleaning element is installed in a corresponding notch.

Disclosed is a toothbrush with oligodynamic properties. This is achieved with a small current produced as a result of the dissimilar materials from which it is constructed. A small piece of zinc metal. attached to the device at a specified location acts as a sacrificial anode in order for any corrosion which will naturally occur, to occur at the replaceable anode, and nowhere else on the toothbrush. The bristles of the tooth brush are much longer than those of a conventional toothbrush in order to spend a longer period of time in contact with the teeth and gums thereby causing the desired effect to be more pronounced.

A device (2) is provided for applying a composition (P) to the eyelashes and/or the eyebrows. The device includes a molded applicator member (8) including a core (10) having a longitudinal axis (X) and rows of teeth that are carried by the core (10), preferably at least five rows, two teeth belonging to two consecutive rows not being parallel. The outside surface of at least one segment of the core (10) includes only one toothless portion, or only two toothless portions that are situated substantially opposite each other, or each toothless portion being of angular extent lying in the range 75° to 110° around the longitudinal axis.

A paint brush cleaning system includes a housing and a paint brush cleaner attached to the housing. The housing contains solvent that helps clean a paint brush. The paint brush cleaner rotates a wire brush against the bristles of the paint brush and actuates a pump to eject solvent drawn from the housing as the paint brush is moved in translation. The wire brush is coupled to a retractable cord, which rotates the wire brush. A holder is simultaneously coupled to the retractable cord and the pump. When force is exerted on the holder, the retractable cord rotates the wire brush and the pump ejects solvent. A user can insert a paint brush handle through the holder, thus actuating the pump and rotating the wire brush by applying force to the handle. The housing attaches to a user's belt, providing easy access to the paint brush cleaning system.

A brush with magnetic filaments is described. The brush may be used, for example, as a brush for applying a cosmetic material. The filaments of the brush may, in one example, be made of a synthetic material infused with magnetic material.

A mascara brush comprising a core made of at least two wire sections twisted with one another along a wire-core longitudinal axis and a set of bristles made of bristles formed from plastic filaments, each of said bristles being held in a clamped manner between the two wire sections and being formed on the free ends thereof with or without a wedge-shaped bristle tip, wherein the bristles, at least partially, are formed from internally hollow filaments, a solution is provided with which the mass delivery in relation to the known applicators is improved. Same is achieved in that, in particular at least, the bristles formed on the inside in a hollow manner on the radially outward free ends have an oblique cut in the form of a simple wedge and comprise a wedge-shaped bristle tip comprising at least one cut surface forming a wedge.

A wafer cleaning apparatus includes: a brush, configured to wash a surface to be cleaned of a wafer; a base for carrying the brush, the base having at least one conductive disk, a disk surface of the conductive disk being parallel to the surface to be cleaned, and the base being able to rotate around an axis of the base; and a magnetic field generation structure configured to emit, to the conductive disk, a magnetic field perpendicular to the disk surface of the conductive disk, so that an induced electric field is generated in the conductive disk during the rotation of the base. The quality of wafer cleaning and the yield of wafer products can be improved.