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公开(公告)号：US11425991B2
公开(公告)日：2022-08-30
申请号：US14645245
申请日：2015-03-11
发明人： Ulrich Stoerkel , Simone Bertrand , Marlis Huebner , Andreas Birk , Franziska Schmid , Alexander Hilscher , Heidrun Schmelcher , Jochen Ganninger , Jochen Kawerau , Uwe Jungnickel , Benedikt Heil , Christian Mandl , Eva Kaiser , Kathi Ballmaier , Christine Hielscher , Britta Stockinger
摘要： A head for an oral care implement has a mounting surface and at least one tuft mounted thereon. The tuft has a longitudinal axis and a cross-sectional area extending in a plane perpendicular to the longitudinal axis. The tuft comprises a plurality of substantially cylindrical filaments. Each filament has a longitudinal axis and a cross-sectional area extending in a plane that is perpendicular to the longitudinal axis. The cross-sectional area of an individual filament has a substantially non-circular shape. The plurality of filaments is arranged such that the cross-sectional area of the tuft has a scaled-up shape of the individual filament's cross-sectional area.
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公开(公告)号：US10513064B2
公开(公告)日：2019-12-24
申请号：US14135030
申请日：2013-12-19
发明人： Mattthew Lloyd Newman , Uwe Jungnickel , Benedikt Heil , Joerg Kotitschke , Andreas Reuschenbach , Andreas Bresselschmidt , Holger Schulz , Jochen Ganninger , John Carson
IPC分类号： B29C45/00 , A46B9/04 , A61C17/16 , B29C45/26 , B29C45/16 , B29C45/17 , B29K101/00 , B29L31/42
摘要： An injection-molding process and an apparatus for making a multi-component hollow article, and the article made thereby. The process comprises molding, from a first plastic material, a hollow body having a wall with at least one vent therethrough and at least one flap molded in an area adjacent to the vent. The flap is molded in a first position in which the vent is open. The flap is hingedly movable from the first position to a second position in which the vent is closed by the flap. After the flap is folded into the second position, the hollow body, including the folded flap, is at least partially overmolded with a second plastic material, wherein the second material is essentially precluded from leaking into the hollow body through the vent. The apparatus comprises a first mold bar for molding a hollow body, a second mold bar for overmolding the hollow body with a second plastic material, and a closing tool for moving, and optionally retaining, the flap in the second position. The resulting article has no second material inside its hollow body.
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