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US 8,540,789 B2Granted
Filter element constructions
AssigneeMadison Filter 981 Limited
InventorNiels Fischer
Life of this patent
Estimating the term…
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AssigneeMadison Filter 981 Limited
InventorNiels Fischer
Estimating the term…
A filter element comprises a pleated filter (10), one end of which is received in an end cap (11), which is made up of a unitary molding comprising an end part (21) of a harder plastics material, and a lower part (22) of a softer plastics material, the plastics being compatible or of the same composition, differing only in hardness. A groove (24) engages with a support plate (14), the groove being formed in the softer material abutting the harder material so that the latter forms one face of the groove. A perforated support sleeve (29) can be inserted by dropping into the filter, and an end cap (12) at the other end of the filter either closes the end or is adapted for connection to a further similar filter.
A filter element, comprising:
A filter element comprising a filter body of pleated filter material, and an end cap adapted to provide dimensional stability to the filter body and to engage with a circumferential edge of an aperture in a support plate by means of a radially outwardly facing circumferential groove in the end cap, the end cap comprising a unitary body formed by molding from two plastics compositions of compatible composition, the end cap comprising a molding having a first part consisting of plastics having a first hardness, and a second part consisting of plastics having a second lower hardness, wherein the groove is provided wholly in the part having the lower hardness immediately adjacent the harder part.
A filter element, comprising:
Dependencies are inferred from the claim text.