摘要 |
Internal filter system for garden ponds, aquaria or the like, in which, as shown in section in diagram 1, different filter materials are connected in series so that the water stream first flows through a coarse material, for example gravel, and then a finely porous material, for example plastic foam. Coarse dirt particles are retained by the gravel without blocking the flow.
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申请人 |
TETRA WERKE DR.RER.NAT. ULRICH BAENSCH GMBH, 4520 MELLE, DE |
发明人 |
FRIEDERING, ULRICH, 4520 MELLE, DE;GRIESINGER, RALPH-EDGAR, 4516 BISSENDORF, DE;RICHTER, ARNO, 4500 OSNABRUECK, DE |