Filter assembly for a vacuum cleaner

    公开(公告)号:US06565637B2

    公开(公告)日:2003-05-20

    申请号:US10128107

    申请日:2002-04-23

    IPC分类号: B01D4702

    摘要: A filter assembly for a vacuum cleaner that includes a main housing having an inlet and an outlet. A motor moves air from the inlet to the outlet, and a first filter is arranged between the inlet and the outlet for filtering the air. An inner wall and an outer wall that is spaced apart from the inner wall form a cavity between the walls. The cavity is located between the first filter and the outlet. The inner wall has an inner opening that permits air to flow from the first filter into the cavity, and the outer wall has an outer opening. A back cover is removably secured to the outer wall over the outer opening to seal the cavity and guide the air from the cavity to the outlet. The back cover includes an access opening that is removably secured to the back cover over the access opening to seal the access opening. A filter cartridge is removably disposed within the cavity. The filter cartridge has a first side with a first opening and a second side opposite the first side and adjacent to the access cover with a second opening. The filter cartridge has a second filter, such as a HEPA filter, disposed therein between the first and the second openings for further filtering the air. A portion of the first side is in sealing engagement with a portion of the inner wall such that the first opening is aligned with the inner opening wherein the motor moves the air from the inner opening to the second opening.

    INTEGRATED PUMP PRIMING SYSTEM
    13.
    发明申请
    INTEGRATED PUMP PRIMING SYSTEM 审中-公开
    集成泵浦系统

    公开(公告)号:US20110318196A1

    公开(公告)日:2011-12-29

    申请号:US13143890

    申请日:2008-03-10

    IPC分类号: F04B23/08

    CPC分类号: A47L11/34 A47L11/4088

    摘要: A vacuum accessory and a pump motor assembly are disclosed. An exemplary pump motor assembly includes a motor having a housing. The motor drives a pump impeller. The pump motor assembly further includes a primer assembly secured to the motor, the primer assembly defining an impeller cavity receiving the pump impeller. The primer assembly includes a primer cavity in fluid communication with the impeller cavity, and a fluid inlet in fluid communication with the primer cavity. The fluid inlet is configured to receive fluid from a fluid reservoir, and the pump impeller is configured to pump the fluid from the impeller cavity when the motor is driven.

    摘要翻译: 公开了真空附件和泵电机组件。 示例性的泵马达组件包括具有壳体的马达。 电机驱动泵叶轮。 泵马达组件还包括固定到马达的底漆组件,底漆组件限定容纳泵叶轮的叶轮腔。 底漆组件包括与叶轮空腔流体连通的底漆腔和与底漆腔流体连通的流体入口。 流体入口构造成从流体储存器接收流体,并且泵叶轮构造成在驱动马达时泵送来自叶轮腔的流体。