发明名称 Vacuum cleaner for dry and wet cleaning - incorporates two compartments, connected by opening with return valve in suction hose
摘要 <p>The heavy duty vacuum cleaner for wet and dry cleaning has a first compartment connected to the outside atmosphere. This compartment contains a motorised fan unit. Connected to the first compartment by an opening is a second compartment which contains a tank with a suction hose outside it. The opening (34a) can be alternately connected to the suction or pressure side (52, 60) of the motorised fan unit (28). The suction hose (16) leads into the tank (18) by means of a return valve (36, 38) opening into the direction of the flow. An additional pipe (40) leads outwards from the bottom (46) of the tank (18).</p>
申请公布号 DE2811139(A1) 申请公布日期 1978.09.21
申请号 DE19782811139 申请日期 1978.03.15
申请人 AB ELECTROLUX 发明人 SAWYER,RODERICK
分类号 A47L7/00;(IPC1-7):47L7/00 主分类号 A47L7/00
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