发明名称 Upright vacuum cleaner with spring loaded nozzle
摘要 An upright vacuum cleaner includes a nozzle assembly, a canister assembly pivotally mounted to said nozzle assembly, a suction fan and motor and a biaser. The biaser has a first end that engages the nozzle assembly and a second end that engages the canister assembly. The biaser provides a positive downforce urging the forward end of the nozzle assembly toward the surface being cleaned.
申请公布号 US2004231094(A1) 申请公布日期 2004.11.25
申请号 US20040878294 申请日期 2004.06.28
申请人 NISHIKORI TAMAKI;DAVIS RON 发明人 NISHIKORI TAMAKI;DAVIS RON
分类号 A47L5/28;A47L5/34;A47L9/00;A47L9/02;(IPC1-7):A47L5/28 主分类号 A47L5/28
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