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AssigneeSartorius Stedim Biotech GmbH
InventorsUlrich Grummert, Ralf Lausch, Paschalis Nikoloudis, Christian Pradel, Michael Schuetzler
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An adapter is provided for fastening a filter element in a cylindrical receiving opening of a bottom part of a lower piece of a filter housing. The adapter has at least one seal arranged in a peripheral groove on the circumference of the adapter to permit fluid-tight separation of a non-filtrate chamber, which surrounds the external jacket of the filter and from which medium to be filtered can be delivered to the filter, from a filtrate chamber into which the filtrate can be introduced from the filter. The seal is connected by injection molding to a base surface of the peripheral groove and is at a distance from at least one side wall delimiting the base surface of the groove.
An adapter (1, 1′) for fastening a filter element (25, 25′) in a cylindrical receiving opening (18) of a bottom part (19) of a lower piece of a filter housing, said adapter comprising at least one seal (4, 7) that is arranged in a peripheral groove (3, 5) on the circumference of the adapter in order to permit fluid-tight separation of a non-filtrate chamber, which surrounds the external jacket of the filter and from which medium to be filtered can be delivered to the filter, from a filtrate chamber into which the filtrate can be introduced from the filter, characterized in that the seal (4, 7, 28) is injection molded onto a base surface (6) of the peripheral groove (3, 5, 26), and in that the seal (4, 7, 28) is at a distance (16, 17, 31) from at least one side wall (12, 13, 32, 33) delimiting the base surface (6) of the groove (3), in that a second seal (7) is injection molded onto the base surface (6) in a second peripheral groove (5), in that the two seals (4, 7) are arranged in mutually parallel grooves (3, 5), and in that the seals (4, 7) bear directly on the two mutually facing inner side walls (10, 11) of the grooves (3, 5), and in that the two seals (4, 7) are connected to each other via at least one web (20) extending in the axial direction.
2-5. (canceled)
The adapter of claim 5, characterized in that the two seals (4, 7) are connected to each other via two webs (20) extending in the axial direction.
The adapter of claim 2, characterized in that a third seal (28), in a peripheral groove (26) in the area of an end cap (24′) of the filter element (25′), is injection molded onto the base surface (6) of the groove (26).
The adapter of claim 3, characterized in that the seal (4, 7, 28) is made of a thermoplastic elastomer, a thermoplastic urethane, or silicone.
The adapter of claim 4, characterized in that the adapter (1, 1′) has a main body (2) with an encapsulated reinforcing ring (34).
The adapter of claim 5, characterized in that the adapter (1, 1′) is welded to an end cap (24, 24′) of the filter element (25, 25′) or is formed integrally onto the end cap (24, 24′).
Dependencies are inferred from the claim text.