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1. 发明授权

US06934993B1 Extraction cleaning machine with agitation brushes 有权
标题翻译：带搅拌刷的抽出式清洗机
公开(公告)号：US06934993B1
公开(公告)日：2005-08-30
申请号：US10064322
申请日：2002-07-02
申请人： Eric C. Huffman , Gary A. Kasper , Charles A. Reed , Eric J. Hansen , Stefan G. Rider
发明人： Eric C. Huffman , Gary A. Kasper , Charles A. Reed , Eric J. Hansen , Stefan G. Rider
IPC分类号： A47L5/26 , A47L5/30 , A47L9/04
CPC分类号： A47L9/0411 , A47L5/26 , A47L5/30 , A47L9/0444 , A47L9/0477
摘要： An extraction cleaning machine has a solution dispensing system and a recovery system for applying a cleaning solution to a surface and recovering the solution from the surface, and an agitation brush assembly for agitating the surface. The agitation brush assembly can include friction-type or other dampers for reducing brush bounce, and biasing elements for maintaining a constant downward force on the brush. The brush can have multiple helical rows of tufted bristles, preferably at least four rows, or can comprise a continuous helix of bristles in a twisted-wire spindle. The brush can further have a removable fabric cover for mounting over a bristle brush for contacting a surface being cleaned. The brush assembly can function in an upright extraction cleaning machine with or without an above floor cleaning tool, a hand-held extractor, or a hand-held attachment to a canister extractor or an above floor tool in upright extractor.
摘要翻译：提取清洗机具有溶液分配系统和用于将清洁溶液施加到表面并从表面回收溶液的回收系统，以及用于搅拌表面的搅拌刷组件。搅拌刷组件可以包括用于减少刷子弹跳的摩擦型或其它阻尼器，以及用于在刷子上保持恒定向下的力的偏置元件。刷子可以具有多个螺旋排的簇绒刷毛，优选至少四排，或者可以在双绞丝心轴中包括连续的刷毛螺旋。刷子可以进一步具有可移除的织物盖，用于安装在刷毛上，用于接触待清洁的表面。刷子组件可以在具有或不具有上层地板清洁工具，手持式提取器或手提式附件的直立提取清洁机器中起作用，其直接提取器中的罐式抽取器或上述地板工具。

2. 发明授权

US06286180B1 Upright water extraction cleaning machine pump priming 有权
标题翻译：立式抽水清洗机泵启动
公开(公告)号：US06286180B1
公开(公告)日：2001-09-11
申请号：US09535850
申请日：2000-03-27
申请人： Gary Kasper , Eric C. Huffman , Gary L. Smith , Timothy E. Kasen , Luke E. Kelly , Charles A. Reed
发明人： Gary Kasper , Eric C. Huffman , Gary L. Smith , Timothy E. Kasen , Luke E. Kelly , Charles A. Reed
IPC分类号： A47L700
CPC分类号： H05B3/00 , A47L5/28 , A47L5/30 , A47L5/32 , A47L7/0009 , A47L7/0028 , A47L7/0038 , A47L7/0042 , A47L9/0009 , A47L9/0036 , A47L9/02 , A47L11/03 , A47L11/30 , A47L11/305 , A47L11/34 , A47L11/4016 , A47L11/4083 , B01F3/088 , B01F5/0077 , B01F15/0404 , C11D3/0031 , C11D3/39 , C11D3/3905 , C11D3/3917 , C11D3/3947 , C11D7/3254 , C11D11/007 , F16K31/54
摘要： A portable surface cleaning apparatus has a base for movement along a surface to be cleaned and an upright handle pivotally attached to a rearward portion of the base. A fluid dispensing nozzle for applying fluid to the surface and a suction nozzle for picking up fluid and debris from the surface are associated with the base. A clean water holding tank and a detergent holding tank are removably mounted to the handle while a recovery tank is removably mounted to the base. A mixing valve is fluidly connected between the holding tanks and the spray nozzle for changing the mixing ratio of the detergent with respect to the water. The fluid recovery tank includes an integrally molded conduit that extends from the suction nozzle and a mounting for an accessory hose that interrupts the fluid path from the suction nozzle in the conduit and redirects fluid flow through the hose. A pump is fluidly connected between the mixing valve and the dispensing nozzle and includes a pump priming valve that operates on negative air pressure to clear air from the fluid lines during pump operation. A free floating brush is pivotally attached to the base for automatically adjusting to different surface conditions during cleaning operations.
摘要翻译：便携式表面清洁装置具有用于沿待清洁的表面移动的基座和可枢转地附接到基部的后部的直立手柄。用于将流体施加到表面的流体分配喷嘴和用于从表面拾取流体和碎屑的吸嘴与基座相关联。清洁水容器和洗涤剂储存罐可移除地安装到手柄上，而回收罐可拆卸地安装到基座上。混合阀流体连接在保持罐和喷嘴之间，用于改变洗涤剂相对于水的混合比例。流体回收罐包括从吸嘴延伸的整体模制的管道和用于附件软管的安装件，其中断管道中的吸嘴的流体路径，并且使流体流动通过软管。泵在流体上连接在混合阀和分配喷嘴之间，并且包括泵启动阀，其在负压气压下操作以在泵操作期间从流体管线清空空气。自由浮动刷可枢转地附接到基座，用于在清洁操作期间自动调整到不同的表面状态。

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