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    • 3. 发明授权
    • Cordless vacuum cleaner bowl and filter system
    • 无绳吸尘器碗和过滤系统
    • US4209875A
    • 1980-07-01
    • US932762
    • 1978-08-11
    • Timothy G. PughOmer L. Shifflett, Jr.
    • Timothy G. PughOmer L. Shifflett, Jr.
    • A47L5/24
    • A47L5/24
    • A hand-held cordless electric vacuum cleaner including separable power and bowl units secured by a releasable latch. The power unit includes a housing formed with a handle and enclosing an electric motor and fan, batteries for the motor, and a switch for turning the motor on and off. The bowl unit includes a hollow bowl provided with an air inlet opening and an integral internal nozzle communicated with the fan when joined to the power unit. A filter assembly including a ring and a filter bag is positioned wholly within the bowl between the air inlet opening and fan and is removable from the bowl after the units are separated, whereby dirt and debris contained in the bowl are not spilled during separation of the units. A flapper covers the nozzle when the unit is off to prevent dirt in the bowl from coming out of the opening.
    • 一种手提式无绳电动真空吸尘器,包括可分离式动力和通过可释放闩锁固定的碗单元。 动力单元包括形成有手柄并且包围电动机和风扇的壳体,用于电动机的电池和用于打开和关闭电动机的开关。 碗单元包括设置有空气入口开口的空心碗和当与动力单元接合时与风扇连通的整体内部喷嘴。 包括环和过滤袋的过滤器组件完全位于空气入口和风扇之间的碗内,并且在单元分离之后可从碗中移除,由此包含在碗中的污垢和碎屑在分离期间不会溢出 单位。 当本机关闭时,挡板覆盖喷嘴,以防止碗中的污垢从开口中脱出。