The Procter Gamble Company

Braun Gmbh

Sven Alexander Franke

Uwe Jungnickel

Jens Alinski

Karen Lynn Claire-Zimmet

Erwin Paul Mark

Jochen Erich Kawerau

Norbert Schaefer

Uwe Schober

Martin Haas

Ingo Vetter

Frank Ziegler

Robert Schäfer

Alexander Franz Doll

Jannik Scheele

Robert Florian Schütz

Robert Florian SCHÜTZ

Robert Florian Schutz

A filament for an oral care implement has a longitudinal axis and a substantially cross-shaped cross-sectional area extending in a plane substantially perpendicular to the longitudinal axis. The cross-shaped cross-sectional area has four projections and four channels. The projections and channels are arranged in an alternating manner. Each channel has a concave curvature formed by neighboring and converging projections. The concave curvature has a radius, and each projection is end-rounded thereby forming a curvature. The curvature has a diameter, and the ratio of the diameter of the curvature of the projection to the radius of the curvature of the channel is from about 0.2 to about 1.5.

Filament for an oral care implement and oral care implement

A head for an oral care implement has an outer rim and an inner portion. The head comprises at least one tuft of filaments of a first type and at least one tuft of filaments of a second type. The at least one tuft of the first type is arranged at the inner portion of the head and comprises a plurality of filaments, each filament having a longitudinal axis and a substantially circular cross-sectional area extending in a plane substantially perpendicular to the longitudinal axis. The at least one tuft of the second type is arranged at the outer rim of the head and comprises a plurality of filaments, each filament having a longitudinal axis and a substantially cross-shaped cross-sectional area extending in a plane substantially perpendicular to the longitudinal axis, the cross-shaped cross-sectional area having four projections and four channels, the projections and channels being arranged in an alternating manner. The at least one tuft of filaments of the second type has a packing factor within a range from about 40% to about 55%.

Head for an oral care implement and oral care implement

A head for an oral care implement comprises at least one tooth cleaning element of a first type and at least one tooth cleaning element of a second type. The at least one tooth cleaning element of the first type has a length extension along a longitudinal axis being about 1 mm to about 2 mm shorter than the length extension of the at least one tooth cleaning element of the second type along its longitudinal axis. The at least one tooth cleaning element of the first type is a tuft of a first type comprising a plurality of filaments, each filament having a longitudinal axis and a substantially cross-shaped cross-sectional area extending in a plane substantially perpendicular to the longitudinal axis. The cross-shaped cross-sectional area has four projections and four channels, the projections and channels being arranged in an alternating manner. The at least one tuft of the first type has a packing factor within a range from about 40% to about 55%, preferably from about 45% to about 50%.

A head for an oral care implement comprises at least one tooth cleaning element of a first type and at least one tooth cleaning element of a second type. The at least one tooth cleaning element of the first type has a length extension along a longitudinal axis being about 1 mm to about 2 mm longer than the length extension of the at least one tooth cleaning element of the second type along its longitudinal axis. The at least one tooth cleaning element of the first type is a tuft of a first type comprising a plurality of filaments. Each filament has a longitudinal axis and a substantially cross-shaped cross-sectional area extending in a plane substantially perpendicular to the longitudinal axis. The cross-shaped cross-sectional area has four projections and four channels, the projections and channels being arranged in an alternating manner. The at least one tuft of the first type has a packing factor within a range from about 40% to about 55%, preferably from about 45% to about 50%.

A head for an oral care implement has an outer rim and an inner portion and comprises at least one tooth cleaning element of a first type and at least one tooth cleaning element of a second type. The at least one tooth cleaning element of the first type is arranged at the inner portion of the head, and the at least one tooth cleaning element of the second type is arranged at the outer rim of the head. The at least one tooth cleaning element of the first type is a tuft of a first type comprising a plurality of filaments. Each filament has a longitudinal axis and a substantially cross-shaped cross-sectional area extending in a plane substantially perpendicular to the longitudinal axis. The cross-shaped cross-sectional area has four projections and four channels, the projections and channels being arranged in an alternating manner. The at least one tuft of the first type has a packing factor within a range from about 40% to about 55%, preferably from about 45% to about 50%.

A filament for an oral care implement has a longitudinal axis and a substantially cross-shaped cross-sectional area extending in a plane substantially perpendicular to the longitudinal axis. The cross-shaped cross-sectional area has four projections and four channels, the projections and channels are arranged in an alternating manner. The cross-sectional area has an outer diameter, and each channel has a concave curvature formed by neighboring and converging projections. The concave curvature has a radius which is within a range from about 0.015 mm to about 0.12 mm, and the ratio of the outer diameter to the radius is within a range from about 2.5 to about 12.

A tuft for an oral care implement comprises a plurality of filaments. Each filament has a longitudinal axis and a substantially cross-shaped cross-sectional area extending in a plane substantially perpendicular to the longitudinal axis. The cross-shaped cross-sectional area has four projections and four channels, and the projections and channels are arranged in an alternating manner. Each channel has a concave curvature formed by neighboring and converging projections. The concave curvature has a radius, and the radius of the concave curvature of the channel is within a range from about 0.025 mm to about 0.10 mm. The tuft has a packing factor within a range from about 40% to about 55%.

Tuft and head for an oral care implement and oral care implement

A personal hygiene device has a handle, a treatment head mounted for relative movement of at least a portion thereof with respect to the handle against a restoring force when a treatment force is applied in at least one direction onto the treatment head, a treatment-force-measurement unit for determining the applied treatment force comprising a light-emitting element, a light-sensitive element, and a light-changing element arranged at least partly in the light path between the light-emitting element and the light-sensitive element, wherein the light-changing element and at least one of the light-emitting element and light-sensitive element are arranged to be moved relatively to each other when at least the portion of the treatment head is moved.

Personal hygiene device having treatment-force-measurement unit

A personal hygiene implement comprises an axle that extends along a first longitudinal axis; a movable functional element comprising a base comprising a first side and an opposing second side, a first pillar extending from the first side of the base, wherein the first pillar comprises a piston chamber that is fluidly connected to a discharging through-hole, and at least one cleaning element extending from the second side of the base; and a fixation element comprising a piston which extends orthogonally to the first longitudinal axis; wherein the movable functional element is capable of rotatably oscillating around the axle, and the piston chamber engages with the piston to form a pump.

Growing community of inventors

Darmstadt, Germany

Sven Alexander Franke