实习申请表专利名称：Device for a vacuum cleaner and a dust bag 发明人：Erik K. G. Johansson,Lennart K. Fahlen
哲理诗句申请号：US07/143342
银行基本账户西藏雪莲花申请日：19880113
公开号：US04805257A
公开日：
19890221
专利内容由知识产权出版社提供
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摘要：A vacuum cleaner comprising a fan asmbly which via a chamber enclos a dust container and communicates with an inlet sleeve for dust laden air. The inlet sleeve is via a ho connected to the nozzle of the vacuum cleaner. The walls of the chamber are provided with guides for a stiff collar which is part of the dust container. The guides extend mainly perpendicular to the axial direction of the inlet sleeve. The vacuum cleaner also includes a flexible inflatable means which is placed about the inlet sleeve. When starting the fan the flexible means is inflated by means of the pressure difference between atmosphere and the chamber thereby preventing dust laden air from flowing outside the dust container.
开心激超市实习周记申请人：AKTIEBOLAGET ELECTROLUX
木瓜恰恰恰代理人：Alfred E. Miller
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