Patent ID: 9480543
Filing Date: 2016-11-01
CPC Classification: A61C,B05B

Claim Text:
1. A dispensing device comprising a mixing and spray head forming a single unit which is removably attachable to a multicomponent dispensing appliance, the mixing and spray head comprising: a transfer housing including an end forming a planar bottom wall; and a mixing and spray piece connected to the transfer housing, wherein the mixing and spray piece is separate from the transfer housing; wherein the mixing and spray piece includes a closure portion covering the planar bottom wall, the closure portion defining a spray outlet, the planar bottom wall facing the spray outlet, wherein an annular mixing chamber is formed in the closure portion opposite the planar bottom wall, the annular mixing chamber being commonly delimited by the closure portion and the planar bottom wall, the annular mixing chamber including serrated mixing elements, the serrated mixing elements being formed in a surface of the closure portion that faces the planar bottom wall, wherein a swirl chamber is formed in the closure portion opposite the planar bottom wall, the swirl chamber being commonly delimited by the closure portion and the planar bottom wall, the swirl chamber being surrounded by the annular mixing chamber, wherein feed ducts are formed in the closure portion opposite the planar bottom wall, the feed ducts being commonly delimited by the closure portion and the planar bottom wall, the feed ducts leading to the annular mixing chamber, wherein a plurality of connecting passages are formed in the closure portion opposite the planar bottom wall, the connecting passages being commonly delimited by the closure portion and the planar bottom wall, the connecting passages leading from the annular mixing chamber to the swirl chamber, and wherein the swirl chamber, the annular mixing chamber, the connecting passages and the feed ducts are arranged in a coplanar manner in a common plane, the common plane extending parallel to the planar bottom wall and perpendicular to a longitudinal axis of the mixing and spray head.