发明名称 BARE FLOOR CLEANER WITH SHUT OFF VALVE
摘要 A bare floor cleaner for wet and dry bare floor surfaces comprises a base with wet and dry suction nozzles and a handle pivotally connected to the base. A diverter mounted in the working air conduit between each of the dry suction nozzle and the wet suction nozzle to a recovery tank is movable by movement of the handle between a dry suction position and a wet suction position for selectively at least partially blocking working air flow from the wet suction nozzle and the dry suction nozzle, respectively, to the recovery tank. A shut-off valve is mounted in the recovery tank to prevent fluid communication between a suction source and the recovery tank when the amount of liquid in the recovery tank reaches a first predetermined amount with the handle forward and a second predetermined amount with the handle rearward.
申请公布号 US2009094780(A1) 申请公布日期 2009.04.16
申请号 US20080337943 申请日期 2008.12.18
申请人 发明人 JANSEN JOHN L.
分类号 A47L7/00;A47L9/02 主分类号 A47L7/00
代理机构 代理人
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