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公开(公告)号：US4114230A
公开(公告)日：1978-09-19
申请号：US752399
申请日：1976-12-20
CPC分类号： F16L37/008 , A47L7/04 , F16L37/02 , Y10T137/3584
摘要： A nozzle attachment for use in combination with a vacuum cleaner to inflate or deflate air expandable articles, a portion of the nozzle having a relatively large diameter for coupling with the free end of a flexible hose, a relatively small extended tip portion insertable into bodies of inflation valves to mechanically open recessed check valve elements, and an intermediate cross sectional transition portion having at least one conical zone for sealing against the mouths of the inflation valve bodies. For inflation, the opposite end of the hose is connected to the fan outlet of the vacuum cleaner while for evacuation it is connected to the fan inlet.
摘要翻译： 一种用于与真空吸尘器组合使用以使空气可膨胀制品膨胀或放气的喷嘴附件，所述喷嘴的一部分具有相对较大的直径，用于与柔性软管的自由端联接，相对小的延伸尖端部分可插入到 用于机械地打开凹形止回阀元件的充气阀，以及具有至少一个锥形区域的中间横截面过渡部分，用于密封充气阀体的口部。 为了充气，软管的另一端连接到真空吸尘器的风扇出口，为了抽真空将其连接到风扇入口。
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公开(公告)号：US4084948A
公开(公告)日：1978-04-18
申请号：US750608
申请日：1976-12-15
摘要： A filter bag assembly for a vacuum cleaner is disclosed. The assembly includes an elongated, relatively rigid, hollow tube coupled at one end to the exhaust of a vacuum cleaner. The tube runs upwardly along the handle of the vacuum cleaner and is attached at its other end to a porous filter bag. The filter bag runs downwardly along the rigid tube and has an open end closed by a nonporous dirt-collecting bag. The tube, the porous bag, and the nonporous bag are encased in an envelope so that the nonporous bag is held in a collapsed or stored condition at the end of the filter bag during normal use of the cleaner. To empty the filter bag of its collected dirt, the envelope is opened to expose the nonporous bag and to permit the dirt in the filter bag to drop downwardly into the nonporous bag. The vacuum cleaner may be turned on and off a number of times to distend the bag and dislodge dirt from the filter bag during the emptying operation.
摘要翻译： 公开了一种用于真空吸尘器的过滤袋组件。 该组件包括细长的相对刚性的中空管，该中空管在一端连接到真空吸尘器的排气口。 管沿着真空吸尘器的把手向上运动并且在其另一端附接到多孔过滤袋。 过滤袋沿着刚性管向下运动，并且开口端由无孔的集尘袋封闭。 管，多孔袋和无孔袋被封装在信封中，使得在正常使用清洁剂期间，无孔袋保持在过滤袋末端处的折叠或储存状态。 为了清除其收集的污垢的过滤袋，打开信封以露出无孔袋，并允许过滤袋中的污物向下落入无孔袋中。 真空吸尘器可以打开和关闭多次以使袋膨胀并且在排空操作期间从滤袋中除去污垢。
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公开(公告)号：US4068341A
公开(公告)日：1978-01-17
申请号：US661834
申请日：1976-02-26
CPC分类号： A47L5/30
摘要： An upright vacuum cleaner is disclosed providing a belt lifter operable to connect and disconnect the floor brush belt from the motor drive shaft. The belt lifter combines a viewing window allowing the user to easily observe the position of the belt and/or its operation. The belt lifter is provided with a tubular shaft portion pivotally mounted in the forward wall of the floor nozzle housing and a transparent plastic cup shaped member positioned within the tubular shaft section in which the end wall provides the viewing window. A face plate is keyed to the tubular shaft section to rotate the belt lifter for connecting and disconnecting the belt. A pair of triangular shaped snap rings secure the belt lifter assembly in its assembled position.
摘要翻译： 公开了一种立式真空吸尘器，其提供可操作以将地板刷带与电动机驱动轴连接和断开的带式升降器。 带式升降机组合了一个观察窗口，允许用户轻松观察皮带的位置和/或其操作。 带式升降机设置有枢转地安装在地板喷嘴壳体的前壁中的管状轴部分和位于管状轴部分内的透明塑料杯形部件，端壁提供观察窗口。 面板被连接到管状轴部分以旋转皮带提升器以连接和断开皮带。 一对三角形卡环将带式升降机组件固定在其组装位置。
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