SEWER SERVICING HATCH COVER
    52.
    发明专利

    公开(公告)号:PL183555B1

    公开(公告)日:2002-06-28

    申请号:PL32900597

    申请日:1997-03-18

    Abstract: PCT No. PCT/AT97/00057 Sec. 371 Date Nov. 16, 1998 Sec. 102(e) Date Nov. 16, 1998 PCT Filed Mar. 18, 1997 PCT Pub. No. WO97/35076 PCT Pub. Date Sep. 25, 1997A cover for a sewage shaft comprising a shaft lid (1) including apertures (2) for the passage of sewage, a filtering element (3) spanning the region of the apertures (2) being arranged at the lower side of this lid, wherein the filtering element (3) projects into the apertures (2) and, at its upper side, ends substantially flush with the upper side of the shaft lid (1).

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