Mixing and dispensing device
AssigneeSmithKline Beecham Consumer Healthcare GmbH
InventorsHans Kramer, Willi Lorscheidt
Life of this patent
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Abstract
A mixing device for fluids, comprising a column within which there is an internal core, a space between the column and core defining a channel for the flow of the fluids, the surface of the column facing the core having fluid guide elements which impart helical flow in a first twist direction upon a fluid flowing along the channel, the surface of the core having fluid guide elements thereon which impart helical flow in an opposite twist direction upon the fluid. On part of the channel, the helical flow imparted to the fluid is predominantly in the twist direction of the elements on the core and on a part of the channel upstream or downstream of this part the helical flow imparted to the fluid is predominantly in the twist direction of the elements on the column.
Claims9
A mixing device which is suitable for mixing two or more fluid materials;
- comprising a generally tubular column (1), within the column (1) there being an internal longitudinally aligned core (2), with a space between the column (1) and the core (2) defining a channel (7) which is suitable for the flow of the fluid materials in an overall longitudinal direction through the column (1), the channel (7) having an inlet end (4) and an outlet end (5) for the respective inlet and exit of fluid material into and out of the channel (7), the column (1) having an inner surface which faces the core (2), said inner surface having one or more helical grooves thereon having a first twist direction and the core having an outer surface which faces the column (1), said outer surface also having one or more helical grooves thereon having a second twist direction opposite to the first twist direction, the said grooves comprising the channel wherein the depth of the one or more grooves (3) in the column (1) is greater in the vicinity of the outlet end (5) of the column (1) than in the vicinity of the inlet end (4).
A mixing device which is suitable for mixing two or more fluid materials;
- comprising a generally tubular column (1), within the column (1) there being an internal longitudinally aligned core (2), with a space between the column (1) and the core (2) defining a channel (7) which is suitable for the flow of the fluid materials in an overall longitudinal direction through the column (1), the channel (7) having an inlet end (4) and an outlet end (5) for the respective inlet and exit of fluid material into and out of the channel (7), the column (1) having an inner surface which faces the core (2), said inner surface having one or more helical grooves thereon having a first twist direction and the core having an outer surface which faces the column (1), said outer surface also having one or more helical grooves thereon having a second twist direction opposite to the first twist direction, the said grooves comprising the channel wherein the depth of the one or more grooves (6) in the surface of the core (2) is greater in the vicinity of the inlet end (4) of the column (1) than in the vicinity of the outlet end (5).
Dependencies are inferred from the claim text.