发明名称 Surface sweeping machine
摘要 A sweeping machine is disclosed including a planar pleated filter and a striking mechanism for removing collected dust from the pleated filter. The striking mechanism includes an elongated strap which overlies the pleated filter. A rotatably driven eccentric weight drives the strap to strike the upper surface of the pleated filter.
申请公布号 US4258451(A) 申请公布日期 1981.03.31
申请号 US19790060012 申请日期 1979.07.23
申请人 TENNANT COMPANY 发明人 SOMMERFELD, GEORGE L.
分类号 A47L9/12;A47L9/20;B01D46/00;B01D46/10;B01D46/52;(IPC1-7):A47L9/20 主分类号 A47L9/12
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