A toothbrush head or a brush carrier having at least one carrier element including at least one shape-shifting tuft mounted thereon. The shape-shifting tuft raises from a mounting end on a mounting surface of the carrier element generally along an extension direction towards a free end of the shape-shifting tuft. The shape-shifting tuft has a length from the mounting base to the free end and comprises a plurality of fibers. The shape-shifting tuft has a first cross-section having a first cross sectional area and shape at a first length along the extension direction, and a second cross-section having a second cross-sectional area and shape at a second length along the extension direction, wherein the first cross-sectional area and the second cross-sectional area are substantially identical and the first cross-sectional shape and the second cross-sectional shape are different so that the first cross-sectional shape does not match the second cross-sectional shape independent from an angle by which the first cross-sectional shape is rotated and independent from a displacement of the first cross-sectional shape.

A toothbrush head or a brush carrier having at least one carrier element including at least one shape-shifting tuft mounted thereon. The shape-shifting tuft raises from a mounting end on a mounting surface of the carrier element generally along an extension direction towards a free end of the shape-shifting tuft. The shape-shifting tuft has a length from the mounting base to the free end and comprises a plurality of fibers. The shape-shifting tuft has a first cross-section having a first cross sectional area and shape at a first length along the extension direction, and a second cross-section having a second cross-sectional area and shape at a second length along the extension direction, wherein the first cross-sectional area and the second cross-sectional area are substantially identical and the first cross-sectional shape and the second cross-sectional shape are different so that the first cross-sectional shape does not match the second cross-sectional shape independent from an angle by which the first cross-sectional shape is rotated and independent from a displacement of the first cross-sectional shape.

A brush head assembly (100) comprising a sandwich assembly (200) comprising a flexible matrix (30) positioned between two layers of stiff or stiffer material (220), a plurality of bristle tufts (21), each of which comprises a plurality of bristle strands, each bristle tuft having a proximal end (23) and a free end (25), a bristle tuft retention element (250) for each bristle tuft (21), the bristle tuft retention elements (250) connecting the proximal end of the bristle tufts (21) to the sandwich assembly.

A brush head assembly (100) comprising a sandwich assembly (200) comprising a flexible matrix (30) positioned between two layers of stiff or stiffer material (220), a plurality of bristle tufts (21), each of which comprises a plurality of bristle strands, each bristle tuft having a proximal end (23) and a free end (25), a bristle tuft retention element (250) for each bristle tuft (21), the bristle tuft retention elements (250) connecting the proximal end of the bristle tufts (21) to the sandwich assembly.

A device for removing an object on a road surface includes a brush section which is provided at a vehicle body of a guide rail type vehicle traveling on the road surface extends obliquely downward toward the front side in an advancing direction of the vehicle body, and a lower end of the brush section being capable of coming into contact with the road surface; a brush support section that fixes the brush section; a fixing section fixed to the vehicle body; and a connecting section that is interposed between the brush support section and the fixing section to connect the brush support section to the fixing section.

A device for removing an object on a road surface includes a brush section which is provided at a vehicle body of a guide rail type vehicle traveling on the road surface extends obliquely downward toward the front side in an advancing direction of the vehicle body, and a lower end of the brush section being capable of coming into contact with the road surface; a brush support section that fixes the brush section; a fixing section fixed to the vehicle body; and a connecting section that is interposed between the brush support section and the fixing section to connect the brush support section to the fixing section.

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.

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.

Powered toothbrush systems that provide improved bristle positioning and bristle contact with tooth surfaces that reduce the time and effort required for effective brushing. Some embodiments use alternating or oscillating pneumatic pressure and suction to move a toothbrush head. Various configuration of the brush head provide different areas of coverage ranging from individual tooth to quarter mouth (U-cross section), to half (U-cross section or H-cross section) or whole mouth (U-cross section or H-cross section) coverage. Some embodiments include flexible fingers and/or bladders to keep the bristle tips properly engaged with the teeth and gums, providing bristle contact over a wide variety of malocclusion. The shape of the brush heads adapts to conform closely to the shape of the user's dental tray and to any malocclusion that may be present. The powered toothbrush automatically generates motion of the brush head that simulates the Modified Bass Method of brushing.

Powered toothbrush systems that provide improved bristle positioning and bristle contact with tooth surfaces that reduce the time and effort required for effective brushing. Some embodiments use alternating or oscillating pneumatic pressure and suction to move a toothbrush head. Various configuration of the brush head provide different areas of coverage ranging from individual tooth to quarter mouth (U-cross section), to half (U-cross section or H-cross section) or whole mouth (U-cross section or H-cross section) coverage. Some embodiments include flexible fingers and/or bladders to keep the bristle tips properly engaged with the teeth and gums, providing bristle contact over a wide variety of malocclusion. The shape of the brush heads adapts to conform closely to the shape of the user's dental tray and to any malocclusion that may be present. The powered toothbrush automatically generates motion of the brush head that simulates the Modified Bass Method of brushing.