发明名称 Shoe attachment for wet/dry electric vacuum cleaner
摘要 The disclosure concerns a shoe attachment for insertion in the intake orifice of an electric vacuum cleaner that includes a housing having an intake orifice at the underside thereof. Wheels support the housing and raise the intake orifice off the surface to be cleaned. The shoe attachment is detachably fitted in the intake orifice. The shoe attachment has an undersurface that rides along the surface to be vacuum cleaned. A narrowed width inlet opening through the shoe attachment increases the intake air speed and/or the suction force, facilitating picking up of heavy material and liquid. The shoe attachment is flexible and resilient to conform to irregularities in the surface being vacuum cleaned.
申请公布号 US4413372(A) 申请公布日期 1983.11.08
申请号 US19810320721 申请日期 1981.11.12
申请人 发明人
分类号 A47L7/00;A47L9/02;(IPC1-7):A47L9/02 主分类号 A47L7/00
代理机构 代理人
主权项
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