Liquid purification or separation – Filter – Receptacle and modified spacing surface or support for...
Reexamination Certificate
2011-08-16
2011-08-16
Kurtz, Benjamin (Department: 1772)
Liquid purification or separation
Filter
Receptacle and modified spacing surface or support for...
C210S435000, C210S451000, C210S450000
Reexamination Certificate
active
07997422
ABSTRACT:
A filter has a housing with cylindrical wall having a first end face and a second end face. The housing has an end wall that closes of the first end face. A filter insert is arranged in the housing. A lid is attached to the cylindrical wall and closes off the second end face. The housing has two layers of different plastic materials, wherein the different plastic materials have different ductility and in particular different hardness. The cylindrical wall has elements that provide a positive-locking connection of the two layers in the axial direction of the housing.
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Kraft Gunther
Möller Peter
Rösgen Andre
Kurtz Benjamin
Mann+Hummel GmbH
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