发明名称 Dust filter bag for a vacuum cleaner
摘要 The invention relates to a vacuum cleaner dust bag, having a holding plate (1) which consists of a paperboard-paper material and has a seal-containing opening (9) for a suction pipe of a vacuum cleaner, the opening (9) being able to be closed from outside by a separate closure flap (10) having an insertion region, and proposes, in order to obtain an improved dust bag, that the paperboard-paper material is made three-ply (plies a, b, c) in the region of the opening (9) and at least two-ply in the remaining region of the holding plate (1), a rubber-ring seal (11) being held between two plies, preferably between the second and third ply (b, c). <IMAGE>
申请公布号 ZA9308174(B) 申请公布日期 1994.06.06
申请号 ZA19930008174 申请日期 1993.11.02
申请人 VORWERK & CO. INTERHOLDING GMBH. 发明人 RALF SAUER;STEFAN KRAUT-REINKOBER;LUDGER HELMES;WERNER HOYER
分类号 A47L9/14 主分类号 A47L9/14
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