Liquid purification or separation – Filter – Supported – shaped or superimposed formed mediums
Reexamination Certificate
2011-01-25
2011-01-25
Menon, Krishnan S (Department: 1797)
Liquid purification or separation
Filter
Supported, shaped or superimposed formed mediums
C210S497100, C210S493500, C210S497010, C055S521000
Reexamination Certificate
active
07874431
ABSTRACT:
A filter element for cleaning a fluid having a pleated filter medium designed for radial flow, to the outside of which a circumferential reinforcing thread is applied. The outside of the filter medium is divided into two axial sections, to which the reinforcing thread is applied in a plurality of circumferential thread windings, such that the axial distance between directly adjacent thread windings differs in the two sections.
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European Search Report dated Sep. 20, 2007 (Seven (7) pages).
Eisengraeber-Pabst Jobst
Knodel Daniela
Krieger Joachim-Paul
Kupfer Fritz
Lampert Johannes
Gonzalez Madeline
Mann & Hummel GmbH
Menon Krishnan S
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