发明名称 NOZZLE CONSTRUCTION FOR A CLEANING HEAD
摘要 A surface cleaning head for a vacuum cleaner comprises an open sided air flow passage upstream of an n enclosed air flow passage extending from an opening in the surface cleaning head to an air outlet. The open sided airflow chamber comprising an upper wall and a rear depending wall extending downwardly from the upper wall. The rear depending wall has a lower end that is positioned above the lower end of wheels. The opening is provided in a rear half of the upper wall of the air flow chamber forwardly of the rear depending wall and inwardly of the sides.
申请公布号 CA2658008(A1) 申请公布日期 2010.09.11
申请号 CA20092658008 申请日期 2009.03.11
申请人 G.B.D. CORP. 发明人 CONRAD, WAYNE ERNEST
分类号 A47L9/00;A47L9/02 主分类号 A47L9/00
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