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公开(公告)号：US4960446A
公开(公告)日：1990-10-02
申请号：US353979
申请日：1989-05-19
CPC分类号： A47L9/1409 , A47L5/362 , A47L5/365
摘要： A dirt receptacle for a vacuum cleaner includes a rigid body for collecting dirt. The body includes an aperture formed in an upper surface thereof through which dirt may flow. One or more apertures are further formed in the sidewall of the rigid body with a filter disposed in each of the apertures through which air may be exhausted from the dirt receptacle. The rigid body further includes one or more air inlet valves that allow air to enter the dirt receptacle for automatic clean out thereof.
摘要翻译： 用于真空吸尘器的污物容器包括用于收集污物的刚体。 主体包括形成在其上表面中的孔，污物可以穿过该孔。 在刚体的侧壁中进一步形成一个或多个孔，其中设置在每个孔中的过滤器，空气可通过该过滤器从污物容器排出。 刚体还包括一个或多个空气入口阀，其允许空气进入污物容器以自动清除。
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公开(公告)号：US5054157A
公开(公告)日：1991-10-08
申请号：US354443
申请日：1989-05-19
CPC分类号： A47L9/1409 , A47L5/32 , A47L5/362 , A47L9/20 , A47L9/242
摘要： A vacuum cleaner is provided that is alternatively operable as a stand alone, upright vacuum cleaner and as a canister vacuum cleaner. The vacuum cleaner includes a nozzle assembly having a beater brush, a suction fan and a motor that drives both the beater brush and suction fan. A dirt tube assembly includes a first air flow passageway that directs dirt from the nozzle assembly to a dirt box and also includes a second air flow passageway that directs dirt from the nozzle assembly to a handle. The handle includes an air flow passageway that is coupled to the second air flow passageway in the dirt tube assembly. The handle is alternatively interconnectable with a cap for sealing the handle air flow passageway to operate the vacuum cleaner as a stand alone, upright vacuum cleaner wherein dirt is directed from the nozzle by the nozzle suction fan through the first air flow passageway to the dirt box. The handle is also interconnectable with a hose assembly coupled to a canister unit having a suction fan driven by a motor such that dirt is directed by canister suction fan from the nozzle assembly through the second air flow passageway to the hose assembly and a canister dirt receptacle to operate the vacuum cleaner as a canister vacuum cleaner. The vacuum cleaner may also be operated in a clean out mode to automatically clean out the dirt box. Further, when operated as a canister vacuum cleaner, the nozzle suction fan and canister suction fan operate together to provide improved cleaning action.
摘要翻译： 提供一种真空吸尘器，其可替代地可操作为独立的，直立的真空吸尘器和作为吸尘器的吸尘器。 真空吸尘器包括具有打浆机刷，吸风机和驱动打浆机刷和吸风机的马达的喷嘴组件。 污物管组件包括第一气流通道，其将污垢从喷嘴组件引导到污物盒，并且还包括将污垢从喷嘴组件引导到手柄的第二气流通道。 手柄包括与污物管组件中的第二气流通道相连的气流通道。 手柄可互换地与盖相连，用于密封手柄空气流动通道以操作真空吸尘器作为独立的直立式真空吸尘器，其中污物通过喷嘴抽吸风扇从喷嘴引导通过第一空气流动通道到达污物箱 。 手柄还可与连接到罐单元的软管组件相连，该软管组件具有由电动机驱动的抽吸风扇，使得污垢由吸管风扇从喷嘴组件通过第二气流通道引导到软管组件， 操作真空吸尘器作为吸尘器。 真空吸尘器也可以在清洁模式下操作以自动清除污物盒。 此外，当作为罐式真空吸尘器操作时，喷嘴吸入风扇和罐吸入风扇一起工作以提供改进的清洁动作。
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公开(公告)号：US06533003B1
公开(公告)日：2003-03-18
申请号：US09474963
申请日：1999-12-30
IPC分类号： B65B104
摘要： A method of controlling a dispenser duct door, including positioning an upper side of the door, in a closed position, in a door-opening direction, and rotating a bottom end of the door to a partially open position vertically under the upper side of the door in response to an opening signal. The bottom end of the door is rotated further in the door-opening direction in response to ice hitting a rear of the door and is returned to the partially open position. After a predetermined delay, the bottom end of the door is returned to the closed position.
摘要翻译： 一种控制分配器管道门的方法，包括将门的上侧定位在关闭位置，在门打开方向上，并且将门的底端旋转到垂直于所述门的上侧的部分打开位置 响应开门信号的门。 响应于撞击门的后部的冰，门的底端在打开门的方向上进一步旋转并返回到部分打开位置。 在预定的延迟之后，门的底端返回到关闭位置。
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公开(公告)号：US5031267A
公开(公告)日：1991-07-16
申请号：US637928
申请日：1991-01-08
申请人： Wilbur C. Bewley
发明人： Wilbur C. Bewley
IPC分类号： A47L9/04
CPC分类号： A47L9/0411 , A47L9/0444
摘要： A belt tensioner for a vacuum cleaner includes a roller and a torsion spring to bias the roller against an endless, non-stretch, flat vacuum cleaner belt to exert an increasing force thereon as the belt lengthens with wear and the torsion spring unwinds, thereby maintaining the tension in the belt substantially constant as the belt lengthens with wear. The tensioner includes a pair of connecting arms each having a first end coupled to opposite ends of the roller and each having a second end pivotal about a pivot axis, the torsion spring being disposed adjacent to the second ends of the connecting arms. The spring rate of the torsion spring is relatively low so that the moment about a pivot axis through the center of the torsion spring of the force applied to the connecting arms by the free end of the torsion spring decreases only slightly as the belt lengthens with wear.
摘要翻译： 用于真空吸尘器的皮带张紧器包括一个辊子和一个扭转弹簧，用于将辊子抵靠环形的非拉伸的平面真空吸尘器带施加增加的力，随着带子的磨损而延长，并且扭转弹簧退绕，从而保持 随着皮带的磨损，带的张力基本上是恒定的。 张紧器包括一对连接臂，每个连接臂具有联接到辊的相对端的第一端，并且每个连接臂具有围绕枢转轴线枢转的第二端，扭转弹簧邻近连接臂的第二端设置。 扭转弹簧的弹簧速率相对较低，使得通过扭力弹簧的自由端施加到连接臂的力的扭转中心的枢转轴线的力矩仅随着带子的磨损而延长而减小 。
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公开(公告)号：US4980945A
公开(公告)日：1991-01-01
申请号：US441565
申请日：1989-11-27
申请人： Wilbur C. Bewley
发明人： Wilbur C. Bewley
摘要： A vacuum cleaner has a disconnectable handle and dirt tube assembly mounted to a floor nozzle. The assembly includes a wire harness connector which mates to a corresponding connector in the floor nozzle to provide power to the floor nozzle components. The connectors are each securely mounted in their respective components, so that when the handle assembly is connected to the floor nozzle, the electrical connection is automatically made. Access to the floor nozzle components is had by removal of the floor nozzle cover. The handle assembly, when installed, is located in spaced relationship from the floor nozzle, overlying an arcuate portion of the floor nozzle top in all but a horizontal position of the handle assembly. When the handle assembly is in a horizontal position, a body edge of the handle assembly overlies projections on the nozzle cover. As a result, in any handle position, the nozzle top may not be removed until the handle assembly is removed from the floor nozzle, thereby disconnecting power to the floor nozzle.
摘要翻译： 真空吸尘器具有可拆卸的手柄和安装在地板喷嘴上的污物管组件。 组件包括线束连接器，其与地板喷嘴中的相应连接器配合，以向地板喷嘴部件提供动力。 连接器各自牢固地安装在它们各自的部件中，使得当手柄组件连接到地板喷嘴时，自动进行电连接。 通过拆下地板喷嘴盖可以进入地板喷嘴部件。 手柄组件在安装时位于与地板喷嘴间隔开的关系中，覆盖地板喷嘴顶部的弧形部分，除了手柄组件的水平位置之外。 当手柄组件处于水平位置时，手柄组件的主体边缘覆盖在喷嘴罩上的突出部分上。 结果，在任何手柄位置，直到手柄组件从地板喷嘴移除之前，喷嘴顶部可能不会被移除，从而断开对地板喷嘴的动力。
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