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US 2006/0219621 A1Published application
Filter device
AssigneeMann+Hummel GmbH
InventorKlemens Dworatzek
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AssigneeMann+Hummel GmbH
InventorKlemens Dworatzek
Estimating the term…
A filter device having a filter element which has at least one end disk (19) having axially extending elevations (20) configured in the form of at least one recognizable character, in which the elevations correspond in configuration to passages (35-37) through an intermediate element (23). Behind the intermediate element there is an element (24) which faces the housing (10) of the filter unit and is provided with axially projecting appendages (30, 31) which extend into the passages (35-37) of the intermediate element (23). Intermediate element (23) and element (24) are axially movably mounted on a central mandrel (17), and the appendages (30, 31) can be pushed axially by the filter element (12) out of the passages (35-27) of the intermediate element (23) so that intermediate element (23) and element (24) can rotate relative to each other and move axially and the filter element can be moved to its fully installed position.
A filter device for filtering liquids or gases comprising a housing that can be opened and a filter element disposed in the housing, wherein the filter element comprises a first element which at least partially covers the outer structure, and on the housing there is a second element which operatively engages the first element covering the outer structure, and wherein an intermediate element is provided, said intermediate element being equipped with openings such that an operative engagement is established between the first and second elements only when a contour of the first element at least substantially corresponds to the contour of the openings in the intermediate element.
Dependencies are inferred from the claim text.