Filter element and method for producing a filter element
AssigneeMann+Hummel GmbH
InventorAnton RABANTER
Life of this patent
Estimating the term…
Abstract
A filter element (1), for example a cabin filter for a motor vehicle, includes a pleated fold pack (2), a plastic frame (4) that is molded at least in part to the fold pack (2) supporting pleat profiles (3), and a plastic foam seal (7) that is foamed at least in part onto the plastic frame (4). In a method for producing a corresponding filter element (1), a plastic frame (4) is generated at least in part around a fold pack (2) in a first injection molding process, and subsequently a plastic foam seal (7) is generated at least in part on the plastic frame (4) in a second injection molding process.
Claims15
A filter element comprising:
- a fold pack of a pleated filter medium having forward and rearward fold profiles;
- a plastic frame molded at least partially onto said fold pack, securing said fold pack to said plastic frame;
- and
- a plastic foam seal secured onto and foamed at least partially onto said plastic frame.
A method of producing a filter element, comprising:
- providing a fold pack of a pleated filter medium having forward and rearward fold profiles;
- practicing a first injection molding step forming a plastic frame of a moldable plastic material at least partially circumferentially about said fold pack, wherein said first injection molding step also secures said fold pack to said plastic frame;
- and
- producing a plastic foam seal at least partially onto and secured to said plastic frame in a second injection molding step.
Dependencies are inferred from the claim text.