Braun Aktiengesellschaft

Braun Gmbh

The Gillette Company

The Procter Gamble Company

Karl Herzog

Thomas Willi Fritsch

Peter Hilfinger

Gerhard Kressner

Jochen Ganninger

Wolfgang Stegmann

Andreas Birk

Holger Schulz

Andreas Reuschenbach

Andreas Bresselschmidt

Michael Jöst

Norbert Schaefer

Georges Driesen

Armin Schwarz-Hartmann

Ulrich Stoerkel

Michael Stolper

Andreas Kramp

Michael Sauer

Wilfried Rolf

Oswald Gromer

Gustav Gassner

Jia-Wei Chiu

Jiawei Chiu

A method for producing a toothbrush comprises providing a head, a neck portion, and a handle; providing a coupling element; and combining the neck portion to the handle by the coupling element so that an irreversible connection is formed. The individual parts of the toothbrush to be formed can be produced in parallel or successively, wherein some of the parts can be produced by injection molding. A toothbrush formed by the method comprises a head, a neck portion, and a handle; these elements can be produced as building blocks separately and may be connected to one another via a coupling element to form an inseparable connection.

Method for producing a toothbrush and toothbrush produced thereby

A method of fusing without contact the ends of thermoplastic filaments grouped together to form at least two tufts. The method steps include providing at least two tufts of thermoplastic filaments arranged at a distance to each other, providing a heating plate at least partly made from a conductive material and structured to have at least two heating sectors separated from one another by at least one separation sector arranged for emitting at least less thermal radiation then the heating sectors, each of the heating sectors having conductive material and a heating surface corresponding in shape and position to the shape and position of the ends of the tufts, exposing the ends of the tufts to the heating plate such that the tuft ends and the heating sectors are aligned with each other, and generating an electric-current flow through the heating sectors so that the heating surfaces of the heating sectors emit thermal radiation that is absorbed by the ends of the filaments, whereby the ends of the filaments melt and the filaments of each tuft are fused together.

Device for fusing the ends of thermoplastic filaments

A toothbrush comprises a head, a neck portion and a handle, wherein the neck portion and the handle portion are connected to one another via a coupling element. The connection is constructed as an inseparable connection, i.e., after being combined once, the neck portion and the handle cannot be separated without the brush being destroyed by such separation. A method for producing such a toothbrush may comprise the following steps: providing a head, a neck portion, a handle, and a coupling element, and combining the neck portion to the handle by the coupling element so that an irreversible connection is formed.

Manual toothbrush concept being combined from three parts

An electrical appliance housing including a hard plastic housing body defining a switch-actuating aperture. The aperture is sealed with a soft plastic membrane. An actuating button is fastened to a hard plastic base that is bonded to the membrane.

Electrical appliance housing

The present invention relates to a toothbrush. The invention relates in particular to a toothbrush filament having a filament body surrounding a matrix material in which grains are embedded, wherein the matrix material and the grains have a different resistance to etching so that by etching the matrix material and/or the grains a surface structure can be created on the filament body at least in the area of the tapering end section. According to one aspect of the present invention, grains having a shell structure with a grain shell, in which is encapsulated a grain core comprising a core material different from the shell material, have been embedded in the matrix material of the filament.

Toothbrush, toothbrush filament and method for manufacturing same

A dental cleaning system for providing a liquid jet for a mouth rinse includes a nozzle member, a nozzle attachment coupled to the nozzle member to define an axially extending chamber, a liquid duct configured to supply pressurized liquid to the chamber, a pressure piece disposed within the chamber, and a nozzle outlet extending out of the chamber and configured to discharge a cleaning jet.

Spray nozzle and dental cleaning system

The invention is directed to a housing, in particular for an electric appliance, having a housing part (,) with a noncircular cross section closed by a detachable housing bottom (,). The housing bottom (,) includes an outer bottom (,) and an inner bottom (,) mounted for rotation in the outer bottom (,). In a closed condition, the inner bottom (,), the housing part (,) and the outer bottom (,) are joined together in particular by positive engagement.

Housing for an electric appliance

The invention is directed to an impeller (1) for a hair dryer or a hair dryer accessory device, which includes an impeller blade (6) by means of which the impeller (1) is adapted to be set in rotation about an axis (3) by a current of air (8). The impeller blade (6) possesses variable aerodynamic properties, particularly an effective surface impinged by the current of air (8) which is variable in response to the rotational frequency of the impeller blade (6). In particular the free end (7) of the impeller blade (6) is of an elastic configuration, causing it to be bent more or less severely under the action of the centrifugal force. This variation in the effective surface of the impeller blade (6) enables the rotational frequency of the impeller (1) to be maintained at an approximately constant value.

Impeller for a hair dryer

The invention is directed to a brush section (1) for an electric toothbrush which includes a mounting tube (2) in which a shaft (7) rotatably mounted about a longitudinal axis (3) and driveable in an oscillatory or rotary fashion is received. Further, the brush section (1) includes a bristle carrier (11) which is pivotally mounted on an angled end (19) of the shaft (7) configured as crankshaft and which, in operation of the electric toothbrush, is set in a rotary motion (26) about the transverse axis (14) by a pin (23). The angle (20) formed by the longitudinal axis (3) and the angled end (19) of the shaft (7) serves the added function of causing the bristle carrier (11) to perform a pivotal motion (27) about an axis (28).

Brush section for an electric toothbrush

An electric toothbrush (1) is described which incorporates a handle (2) and a brush attachment (3). The handle (2) houses an electric motor (8). Protruding from the handle (2) is a shaft (20), which is coupled to the electric motor (8). The brush attachment (3) can be mounted on the handle (2). The brush attachment (3) supports a bristle head (26) which can be coupled to the shaft (20), and from which protrude a multiplicity of bristles (4). In the operating mode, the bristle head (26) describes a rotary motion (49) and a stroke motion (50), with the frequency of the stroke movement (50) being higher, and preferably substantially higher, than the frequency of the rotary movement (49.) The stroke movement (50) provides a poking action of the bristles (4), which serves to loosen plaque from dental surfaces. The rotary movement (49) serves to wipe away plaque loosened from the dental surfaces.

Rotary electric toothbrush with stroke-type bristle movement

The invention is directed to a brush section (1) for an electric toothbrush which includes a mounting tube (2) in which a shaft (7) is received which is mounted so as to be rotary about a longitudinal axis (3) and is adapted to be driven in an oscillatory fashion. Further, the brush section (1) includes a bristle supporting structure (11) which is arranged so as to be rotary about a transverse axis (14) by means of a bearing pin (18) and is adapted to be set in a rotational motion (29) about said transverse axis (14) by means of a drive pin (24). The fixed connection between the bearing pin (18) and the shaft (7) has the added effect of causing the bristle supporting structure (11) to perform a pivotal motion (28) about the longitudinal axis (3). The rotational motion (29) of the bristle supporting structure (11) produces a cleaning action on a user's exposed tooth surfaces, whilst the pivotal motion (28) acts to accomplish an additional cleansing operation on the user's inter-proximal surfaces.

Growing community of inventors

Frankfurt am Main, Germany

Karl Herzog