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    3.
    发明专利
    未知

    公开(公告)号：TR199900478T2

    公开(公告)日：1999-07-21

    申请号：TR9900478

    申请日：1997-09-02

    Applicant: GERHARD FLEISCHHACKER

    Inventor： FLEISCHHACKER GERHARD

    IPC: E01C11/22 ,  E03F1/00 ,  E03F5/06

    Abstract: A filter element (1) for liquid permeable floor area fastening (17), a floor covering plate (15), a manhole cover (15), a sewage cavity or the like, with at least one pre-filtering layer (3) in the direction of the through-flow (2) and at least one following filter layer (4,4'), wherein the free through-flow sections (a, b, b') of each layer (3, 4, 4') increase from layer to layer in the direction of the through-flow. The filter also comprises a housing (5) which surrounds the filter layers (4,4') in a framelike manner and maintains them, wherein each filter layer (4,4') is formed from granular material and the grains are available in loose form or linked to each other by a weak binding agent.

    Filter element
    4.
    发明专利
    Filter element 未知

    公开(公告)号：AU4003397A

    公开(公告)日：1998-03-26

    申请号：AU4003397

    申请日：1997-09-02

    Applicant: GERHARD FLEISCHHACKER

    Inventor： FLEISCHHACKER GERHARD

    IPC: E01C11/22 ,  E03F1/00 ,  E03F5/06

    Abstract: A filter element (1) for liquid permeable floor area fastening (17), a floor covering plate (15), a manhole cover (15), a sewage cavity or the like, with at least one pre-filtering layer (3) in the direction of the through-flow (2) and at least one following filter layer (4,4'), wherein the free through-flow sections (a, b, b') of each layer (3, 4, 4') increase from layer to layer in the direction of the through-flow. The filter also comprises a housing (5) which surrounds the filter layers (4,4') in a framelike manner and maintains them, wherein each filter layer (4,4') is formed from granular material and the grains are available in loose form or linked to each other by a weak binding agent.

    Filter element
    6.
    发明专利
    Filter element 未知

    公开(公告)号：NZ334412A

    公开(公告)日：2000-10-27

    申请号：NZ33441297

    申请日：1997-09-02

    Applicant: GERHARD FLEISCHHACKER

    Inventor： FLEISCHHACKER GERHARD

    IPC: E01C11/22 ,  E03F1/00 ,  E03F5/06

    Abstract: A filter element (1) for liquid permeable floor area fastening, a floor covering plate, a manhole cover, a sewage cavity or the like, with at least one pre-filtering layer (3) in the direction of the through-flow (2) and at least one following filter layer (4,4') is disclosed. The free through-flow sections (a, b, b') of each layer (3, 4, 4') increase from layer to layer in the direction of the through-flow. The filter also comprises a housing (5) which surrounds the filter layers (4,4') in a framelike manner and maintains them, wherein each filter layer (4,4') is formed from granular material and the grains are available in loose form or linked to each other by a weak binding agent.

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