发明名称 Vacuum cleaner having a variable speed brushroll
摘要 Disclosed herein is a vacuum cleaner for cleaning several floor types. The vacuum cleaner includes a rotational brush roll for interfacing with the several floor types, a multi-speed motor for driving the brush roll, a speed control mechanism for controlling the speed of the multi-speed motor, and an input mechanism whereby a user selects a speed of the multi-speed motor. Further, the input mechanism is associated with at least three different speed settings.
申请公布号 US2004134014(A1) 申请公布日期 2004.07.15
申请号 US20030340159 申请日期 2003.01.10
申请人 HAWKINS THOMAS W.;KONTIO CHRISTER;STEFFEN CENNERT;DAVIDSHOFER DONALD 发明人 HAWKINS THOMAS W.;KONTIO CHRISTER;STEFFEN CENNERT;DAVIDSHOFER DONALD
分类号 A47L5/30;A47L9/04;A47L9/28;(IPC1-7):A47L5/30 主分类号 A47L5/30
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