Liquid purification or separation – Flow – fluid pressure or material level – responsive – Filter cleaning
Reexamination Certificate
2007-09-12
2010-10-26
Menon, Krishnan S (Department: 1797)
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Filter cleaning
C210S396000, C210S374000, C210S354000, C210S355000, C210S357000, C210S402000, C210S404000
Reexamination Certificate
active
07820039
ABSTRACT:
The invention relates to an apparatus for the continuous filtering of impurities from a flowable compound, especially a plastic melt, comprising a filter insert (3) in the form of a hollow rotary body which is held to rotate about its rotational axis (A) relative to a housing (1, 2) and is flowed through by the flowable compound and which is arranged in a flow conduit of the housing (1, 2) between a feed conduit (7) for the compound to be filtered and a discharge conduit (8) for the filtered compound, and a discharge apparatus for impurities held back by the filter, which apparatus comprises a feed screw (9) cooperating with the filter insert (3). In order to provide advantageous constructional conditions it is proposed that the filter insert (3) comprises a disk-like filter (5) which is arranged on the face side of the rotary body and is coaxial to the rotational axis (A).
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International Search Report.
Collard & Roe P.C.
Gionta Allison
Menon Krishnan S
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