A46D3/005

Method of manufacturing a brush and brush
10362858 · 2019-07-30 · ·

A method of manufacturing a toothbrush includes steps of providing a carrier having at least a first through hole extending from a front side to a backside of the carrier and at least a first wall element integral with the carrier and extending from the back side in a vicinity of the through hole; introducing a first cleaning element into the first through hole such that an end portion of the first cleaning element is exposed on the backside of the carrier; treating the end portion of the first cleaning element such that it deforms and becomes wider than the first through hole; and deforming the first wall element until it at least partially extends over the deformed end portion of the first cleaning element such that the first cleaning element is effectively retained in its axial position. A brush having structural features resulting from the manufacturing method.

ORAL CARE IMPLEMENT
20190200748 · 2019-07-04 ·

An oral care implement comprises a head and a handle, the head being repeatedly attachable to and detachable from the handle. The head is made from a non-magnetic and/or non-ferromagnetic material, while the handle is at least partially made from a magnetic and/or ferromagnetic material.

Toothbrush and process for producing such a toothbrush
RE047468 · 2019-07-02 · ·

The invention relates to a toothbrush having a handle and a head part, on which bristle filaments and at least one flexible cleaning element are arranged. According to the invention, the at least one flexible cleaning element is arranged on a carrier element which consists of a hard material and is connected to the head part. The invention also relates to a process for producing such a toothbrush.

BRUSH HEAD ASSEMBLY AND METHODS OF MANUFACTURE
20190192267 · 2019-06-27 ·

A brush head assembly (100) including: a hard platen (24); a plurality of bristle tufts (21), each of which includes a plurality of bristle strands having a proximal end (23) and a free end (25); and an elastomeric matrix (30) bonded to the hard platen, where each of the bristle tufts is bonded directly to the elastomeric matrix without a retention element. A brush head assembly (100) includes: a hard platen (24) with a plurality of bristle tuft holes (28); a plurality of bristle tufts (21), each of which includes a plurality of bristle strands having a proximal end (23) and a free end (25), where each of the plurality of bristle tufts are inserted into a respective one of the bristle tuft holes; and an elastomeric matrix (30) that at least partially encompasses the hard platen and the proximal end of the bristle tufts.

Oral Care Implement
20240197064 · 2024-06-20 · ·

An oral care implement used for treatment of a user's oral cavity. The oral care implement may include a body having a longitudinal axis, a first hard plastic component, and a second hard plastic component. The first hard plastic component may have a front surface having a perimeter portion and a central portion that is surrounded by the perimeter portion, the central portion being recessed relative to the perimeter portion. The second hard plastic component may be positioned on the central portion of the first hard plastic component and surrounded by the perimeter portion of the first hard plastic component. The second hard plastic component may have an outer surface with a plurality of grooves that are elongated in a direction of the longitudinal axis.

Mold insert and method of making a mold insert

A mold insert and an injection-molding machine including the mold insert. The 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.

Magnetic cosmetics applicator

A cosmetics applicator made of plastic and having a bristle carrier and having bristles integrally bonded therewith as a single part, whereas the bristle carrier being a permanent magnet while the bristles as such are non-magnetic, characterized in that the bristle carrier comprises a core made of a first plastic filled with magnetic particles and forming an interface at least at the outer circumference thereof, said interface being enclosed by a layer of a second, non-magnetic plastic, wherein the first and the second plastic are preferably welded to each other and the second plastic is preferably harder than the first plastic, and wherein the second plastic is integrally connected to the bristles as a single piece.

Oral care implement
10278484 · 2019-05-07 · ·

An oral care implement is provided. The oral care implement may include a handle comprising a core and a cover enveloping the core. The cover may be formed from a substantially translucent first rigid material. The core may be formed from a second rigid material and a plurality of elements, the plurality of elements suspended within the second rigid material and visible through the cover. In other embodiments the core may include a foamed material.

Brush head assembly and methods of manufacture

A brush head assembly (100) including: a hard platen (24); a plurality of bristle tufts (21), each of which includes a plurality of bristle strands having a proximal end (23) and a free end (25); and an elastomeric matrix (30) bonded to the hard platen, where each of the bristle tufts is bonded directly to the elastomeric matrix without a retention element. A brush head assembly (100) includes: a hard platen (24) with a plurality of bristle tuft holes (28); a plurality of bristle tufts (21), each of which includes a plurality of bristle strands having a proximal end (23) and a free end (25), where each of the plurality of bristle tufts are inserted into a respective one of the bristle tuft holes; and an elastomeric matrix (30) that at least partially encompasses the hard platen and the proximal end of the bristle tufts.

METHOD OF MAKING A UNITARY BRUSH HEAD AND UNITARY TOOTHBRUSH HEAD
20190090623 · 2019-03-28 ·

A method of manufacturing a unitary toothbrush head having a base and filaments extending therefrom. The method includes steps of injecting molten plastic material into a mold cavity having a pre-base cavity and a filament cavity extending therefrom; compressing the molten plastic material, once it is essentially filling the pre-base cavity, by impressing a punching tool into the molten plastic material from the rear side of the pre-base cavity being opposite to a side from which the filament cavity extends; and filling the filament cavity with the molten plastic material under the continuous impression of the punching tool.