发明名称 Suction head of a domestic vacuum cleaner has a variable width suction opening
摘要 The suction head (1) of a vacuum cleaner has an inlet slot (4) with an elastically deformable rear wall (6) so that the opening width (a) is increased when the head is moved backwards and reduced in the forward direction.
申请公布号 DE19900557(A1) 申请公布日期 2000.07.20
申请号 DE19991000557 申请日期 1999.01.09
申请人 WESSEL-WERK GMBH 发明人 DILGER, HORST;KAFFENBERGER, DIETER;RIEHL, KLAUS-DIETER
分类号 A47L9/02;(IPC1-7):A47L9/02 主分类号 A47L9/02
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