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1. 发明授权

US6131237A Upright extraction cleaning machine 有权
标题翻译：立式提取清洗机
公开(公告)号：US6131237A
公开(公告)日：2000-10-17
申请号：US133832
申请日：1998-08-13
申请人： Gary A. Kasper , David E. McDowell , Eric J. Hansen
发明人： Gary A. Kasper , David E. McDowell , Eric J. Hansen
IPC分类号： A47L5/30 , A47L5/32 , A47L7/00 , A47L11/30 , A47L11/34 , A47L11/40 , B01F3/08 , C11D3/00 , C11D3/39 , C11D7/32 , C11D11/00 , F16K31/54 , H05B3/00
CPC分类号： A47L5/30 , A47L11/30 , A47L11/34 , A47L11/4044 , A47L11/4083 , A47L11/4088 , A47L5/225 , A47L5/32 , A47L7/0009 , A47L7/0023 , A47L7/0038 , A47L7/0042 , A47L9/0036 , B01F3/088 , C11D11/007 , C11D3/0031 , C11D3/39 , C11D3/3905 , C11D3/3947 , C11D7/3254 , F16K31/54 , H05B3/00 , C11D3/3917
摘要： A portable surface cleaning apparatus comprises a base module for movement along the surface; an upright handle pivotally attached to the base module; a fluid dispensing system including at least one fluid supply tank mounted to the handle or the base module, a dispensing nozzle mounted to the base module for applying a cleaning fluid to a surface to be cleaned, and a heater for heating the fluid to be applied to the surface to be cleaned to a temperature less than boiling; a fluid recovery tank mounted to the handle or the base module for holding recovered fluid; a suction nozzle associated with the base module; a working air conduit extending between the recovery tank and the suction nozzle; and a vacuum source and fluid communication with the recovery tank for generating a flow of working air from the suction nozzle through the working air conduit and through the recovery tank to thereby recovering fluid from the surface to be cleaned through the suction nozzle and working air conduit and into the recovery tank. A method for cleaning a surface in which a fluid cleaning solution is contained in a tank and dispensed on the surface through a nozzle and the cleaning solution is recovered from the surface with suction and deposited into a recovery tank includes, according to the invention, the steps of admixing an oxidizing agent with the cleaning solution, and heating the admixture prior to the step of dispensing the cleaning solution onto the surface to be cleaned.
摘要翻译：便携式表面清洁装置包括用于沿着表面移动的基座模块; 可枢转地连接到基座模块的直立手柄; 流体分配系统，包括安装到手柄或基座模块的至少一个流体供应罐;安装到基座模块的分配喷嘴，用于将清洁流体施加到待清洁的表面;以及加热器，用于加热要施加的流体待表面清洗至低于沸点的温度; 安装到手柄或基座模块上用于保持回收的流体的流体回收罐; 与所述基座模块相关联的吸嘴; 在回收罐和吸嘴之间延伸的工作空气导管; 以及真空源并与回收罐流体连通，用于从吸嘴通过工作空气管道和通过回收罐产生工作空气流，从而通过吸嘴和工作空气管道从要清洁的表面回收流体并进入回收罐。一种用于清洁其中流体清洁溶液容纳在罐中并通过喷嘴分配在表面上的表面的清洁方法，并且从吸附表面回收清洁溶液并将其沉积到回收罐中的方法包括根据本发明，将氧化剂与清洁溶液混合的步骤，以及在将清洁溶液分配到待清洁表面的步骤之前加热混合物。

2. 发明授权

US07062816B2 Surface cleaner with power drive 有权
标题翻译：表面清洁器带动力传动
公开(公告)号：US07062816B2
公开(公告)日：2006-06-20
申请号：US10064723
申请日：2002-08-09
申请人： Gary A. Kasper , Allen W. Scott , Phong Hoang Tran , David E. McDowell , Gary L. Smith
发明人： Gary A. Kasper , Allen W. Scott , Phong Hoang Tran , David E. McDowell , Gary L. Smith
IPC分类号： A47L5/00
CPC分类号： A47L11/4075 , A47L11/30 , A47L11/34 , A47L11/4088 , F16H1/16 , F16H3/14 , F16H15/10 , F16H2007/0874
摘要： A portable surface cleaning apparatus comprises a fluid dispensing system including at least one fluid supply tank, a dispensing nozzle connected to the fluid supply tank through a fluid supply conduit for applying a cleaning fluid to a surface to be cleaned, a fluid recovery tank for holding recovered fluid, a suction nozzle, a working air conduit extending between the recovery tank and the suction nozzle, a vacuum source in fluid communication with the recovery tank for generating a flow of working air from the suction nozzle through the working air conduit and to the recovery tank to thereby recover fluid from the surface to be cleaned through the suction nozzle and working air conduit and into the recovery tank, and a power drive mechanism for selectively propelling the portable cleaning apparatus over the surface to be cleaned
摘要翻译：便携式表面清洁装置包括流体分配系统，该流体分配系统包括至少一个流体供应罐，通过用于将清洁流体施加到待清洁表面的流体供应管道连接到流体供应罐的分配喷嘴，用于保持回收流体，吸嘴，在回收罐和吸嘴之间延伸的工作空气导管，与回收罐流体连通的真空源，用于产生从吸嘴通过工作空气管道的工作空气流，回收罐，从而通过吸嘴和工作空气管道从待清洁的表面回收流体并进入回收罐;以及动力驱动机构，用于在待清洁的表面上有选择地推动便携式清洁设备

3. 发明授权

US06898820B2 Extraction cleaning with heating 有权
标题翻译：提取清洗加热
公开(公告)号：US06898820B2
公开(公告)日：2005-05-31
申请号：US09911228
申请日：2001-07-23
申请人： Gary A. Kasper , David E. McDowell
发明人： Gary A. Kasper , David E. McDowell
IPC分类号： A47L11/34 , A47L11/40 , A47L11/30
CPC分类号： A47L5/30 , A47L5/32 , A47L7/0009 , A47L7/0028 , A47L7/0038 , A47L7/0042 , A47L11/30 , A47L11/34 , A47L11/40 , A47L11/4005 , A47L11/4008 , A47L11/4041 , A47L11/4044 , A47L11/4086 , A47L11/4088 , A47L11/4094 , B01F3/088 , C11D3/0031 , C11D3/39 , C11D3/3905 , C11D3/3917 , C11D3/3947 , C11D7/3254 , C11D11/007 , C11D17/049 , F16K31/54 , H05B3/00
摘要： A portable surface cleaning apparatus comprises a fluid dispensing system including at least one fluid supply tank, a dispensing nozzle for applying a cleaning fluid to a surface to be cleaned, and a block heater for heating the fluid to be applied to the surface to be cleaned to a temperature less than boiling; a fluid recovery tank for holding recovered fluid; a suction nozzle; a working air conduit extending between the recovery tank and the suction nozzle; and a vacuum source in fluid communication with the recovery tank for generating a flow of working air from the suction nozzle through the working air conduit and into the recovery tank to thereby recover fluid from the surface to be cleaned.
摘要翻译：便携式表面清洁装置包括流体分配系统，该流体分配系统包括至少一个流体供应罐，用于将清洁流体施加到待清洁表面的分配喷嘴，以及用于加热要施加到待清洁表面的流体的块式加热器温度低于沸腾; 用于保存回收的流体的流体回收罐; 吸嘴; 在回收罐和吸嘴之间延伸的工作空气导管; 以及与回收罐流体连通的真空源，用于产生从吸嘴通过工作空气管道进入回收罐的工作空气流，从而从要清洁的表面回收流体。

4. 发明授权

US06446302B1 Extraction cleaning machine with cleaning control 有权
标题翻译：提取清洗机带清洗控制
公开(公告)号：US06446302B1
公开(公告)日：2002-09-10
申请号：US09593126
申请日：2000-06-13
申请人： Gary A. Kasper , Samuel N. Hansen , Jonathan L. Miner , David E. McDowell
发明人： Gary A. Kasper , Samuel N. Hansen , Jonathan L. Miner , David E. McDowell
IPC分类号： A47L1130
CPC分类号： A47L11/30 , A47L11/40
摘要： The invention relates to an extraction cleaning machine including condition sensors for generating condition signals representative of a condition of the surface being cleaned, a controller, and variable-control cleaning systems, wherein the controller sends control signals to the variable-control cleaning systems in response to sensor signals received from the condition sensors. The invention further relates to a self-propelled extraction cleaning machine, and to an extraction cleaning machine including condition sensors and audible or visual indicators to notify the operator of the condition of the surface being cleaned.
摘要翻译：本发明涉及一种提取清洗机，其包括状态传感器，用于产生代表待清洁表面状况的条件信号，控制器和可变控制清洁系统，其中控制器响应于控制器向变量控制清洁系统发送控制信号到从状态传感器接收的传感器信号。本发明还涉及一种自推进提取清洗机，以及一种提取清洗机，包括状态传感器和可视或可视指示器，以通知操作者正在清洁的表面的状况。

5. 发明授权

US5189755A Wet vacuum/extractor and cleaning solution tank therefor 失效
标题翻译：湿式真空/提取器和清洗溶液罐
公开(公告)号：US5189755A
公开(公告)日：1993-03-02
申请号：US866893
申请日：1992-04-03
申请人： Robert A. Yonkers , David E. McDowell
发明人： Robert A. Yonkers , David E. McDowell
IPC分类号： A47L7/04 , A47L11/34
CPC分类号： A47L11/34 , A47L11/4083
摘要： The specification discloses a wet vacuum/extractor including an add-on liquid dispensing system. A liquid supply tank removably mounts on the vacuum and couples with the vacuum exhaust for momentarily pressurizing the tank to prime the liquid dispensing system. A remote pump is included at the wand handle and is powered by low voltage current from the vacuum.
摘要翻译：该说明书公开了一种包括附加液体分配系统的湿式真空/提取器。液体供应罐可拆卸地安装在真空上并与真空排气耦合，以便立即对罐加压以灌注液体分配系统。手柄中包含一个远程泵，并由真空中的低压电流供电。

6. 发明授权

US4766638A Four-way vacuum cleaner 失效
标题翻译：四通吸尘器
公开(公告)号：US4766638A
公开(公告)日：1988-08-30
申请号：US21635
申请日：1987-03-04
申请人： David E. McDowell
发明人： David E. McDowell
IPC分类号： A47L5/24 , A47L9/00
CPC分类号： A47L9/00 , A47L5/24
摘要： A multi-use vacuum cleaner has a central body which houses a motor, air impeller, battery and a dirt collection chamber. One end of the central body has a face inclined to the longitudinal axis of the central body with a rectangular inlet orifice into which the coupling nozzle of a floor and carpet pickup head can be frictionally inserted. The other end of the body has an integral, axially protruding extension providing a primary handle for manipulating the body as a hand held cushion and upholstery cleaner. The primary handle has means for detachably mounting an extension handle permitting the unit to be used as a standard upright vacuum cleaner or for vacuuming overhead and other areas which would be otherwise inaccessible.
摘要翻译：多用途吸尘器具有容纳电动机，空气叶轮，电池和污物收集室的中心体。中心体的一端具有与中心体的纵向轴线倾斜的面，其具有矩形入口孔，地板和地毯拾取头的联接喷嘴可以摩擦地插入该入口孔中。本体的另一端具有一体的，轴向突出的延伸部，提供用于操纵身体的主手柄作为手持垫子和室内装饰清洁器。主手柄具有用于可拆卸地安装延长手柄的装置，其允许该单元用作标准直立式真空吸尘器，或用于抽真空其他不能接近的顶部和其他区域。

7. 发明授权

US4357727A Dual brush floor sweeper 失效
标题翻译：双刷地板清扫车
公开(公告)号：US4357727A
公开(公告)日：1982-11-09
申请号：US212866
申请日：1980-12-04
申请人： David E. McDowell
发明人： David E. McDowell
IPC分类号： A47L11/22 , A47L11/24 , A47L11/32 , A47L11/33
CPC分类号： A47L11/4069 , A47L11/33 , A47L11/4013 , A47L11/4041
摘要： A floor sweeper has a pair of brush rollers, each sweeping into its own dust pan. Each brush roller has different debris pickup characteristics, with one brush roller tending to be more efficient in picking up large debris and the other roller tending to be more efficient in picking up smaller debris. The illustrated embodiment discloses a front brush roller of the off-center tufted type which rotates continuously toward its respective pan during reciprocal sweeper translation, with a relatively high free-wheeling rotation in one direction of sweeper translation. The rear brush roller is of the wire twist type and also rotates continuously toward its pan during reciprocal sweeper translation, but with relatively low rolling rotation in one direction of sweeper movement.
摘要翻译：地板清扫机有一对刷辊，每个刷子都扫入自己的防尘盘。每个刷辊具有不同的碎片拾取特性，一个刷辊倾向于在拾取大的碎屑时更有效，而另一个辊倾向于更有效地拾取较小的碎屑。所示实施例公开了一种偏心簇绒型的前刷辊，其在往复扫掠器平移过程中连续向其各自的平底盘旋转，在扫掠器平移的一个方向上具有相对较高的自由旋转。后刷辊是线扭转型的，并且在往复式清扫机平移期间连续地朝向其盘旋转，但是在清扫机移动的一个方向上具有相对较低的滚动旋转。

8. 发明授权

US07188388B2 Vacuum cleaner with detachable cyclonic vacuum module 有权
标题翻译：具有可拆卸气旋真空模块的吸尘器
公开(公告)号：US07188388B2
公开(公告)日：2007-03-13
申请号：US10604401
申请日：2003-07-17
申请人： Michael F. Best , Douglas J. Medema , David E. McDowell
发明人： Michael F. Best , Douglas J. Medema , David E. McDowell
IPC分类号： A47L9/16
CPC分类号： A47L9/165 , A47L5/225 , A47L5/24 , A47L5/28 , A47L9/1666 , A47L9/1683 , A47L9/1691 , B01D45/16 , Y10S55/03
摘要： A multi-use vacuum cleaner capable of use as an upright vacuum or as a detachable vacuum module further comprising a cyclonic dirt separator has a detachable vacuum module selectively mounted to the base and support member of an upright vacuum cleaner. The vacuum module includes the vacuum motor, motor driven fan, cyclonic dirt separator and hose. The vacuum cleaner may be operated as an upright vacuum, or alternatively, the module can be separated from the base assembly and may be used independently of and at a great distance from the base assembly for a wide variety of cleaning purposes.
摘要翻译：能够用作直立真空的多用途真空吸尘器或进一步包括旋风式污垢分离器的可拆卸真空模块具有可拆卸的真空模块，其选择性地安装到直立式真空吸尘器的底座和支撑构件上。真空模块包括真空马达，马达驱动风扇，气旋污垢分离器和软管。真空吸尘器可以作为直立式真空操作，或者可替代地，模块可以与基座组件分离，并且可以独立于基座组件并且与基座组件相距很远的距离使用，用于各种清洁目的。

9. 发明授权

US4910828A Cleaning apparatus 失效
标题翻译：清洁装置
公开(公告)号：US4910828A
公开(公告)日：1990-03-27
申请号：US214013
申请日：1988-06-30
申请人： Michael R. Blase , Henry J. Rosendall , Daniel L. Koltak , David E. McDowell
发明人： Michael R. Blase , Henry J. Rosendall , Daniel L. Koltak , David E. McDowell
IPC分类号： A47L11/34
CPC分类号： A47L11/4016 , A47L11/34 , A47L11/4083
摘要： A cleaning apparatus which is of a compact construction to facilitate easy manipulation and portability includes a housing enclosing a fluid pump and a vacuum fan and mounting upon opposite sides a recovery tank and a stowage panel. The stowage panel is adapted to stow the flexible wand having a nozzle when not in use. Also, the high voltage motor driving the vacuum pump is adapted to also act as half of a transformer in order to pick off the lower voltage needed for the low voltage motor driving the fluid pump.
摘要翻译：具有紧凑结构以便于操作和便携性的清洁装置包括封闭流体泵和真空风扇的壳体，并且在相对侧上安装有回收罐和收纳板。该装载板适于在不使用时收纳具有喷嘴的柔性棒。此外，驱动真空泵的高压电动机也适用于变压器的一半，以便去除驱动液体泵的低压电动机所需的较低电压。

10. 发明授权

US4042997A Vacuum cleaner with improved brush 失效
标题翻译：具有改进的刷子的真空清洁器
公开(公告)号：US4042997A
公开(公告)日：1977-08-23
申请号：US737153
申请日：1976-10-29
申请人： David E. McDowell , Robert A. Yonkers
发明人： David E. McDowell , Robert A. Yonkers
IPC分类号： A46B9/02 , A47L5/30
CPC分类号： A46B9/02 , A47L5/30
摘要： A vacuum cleaner is provided with a suction nozzle and a cylindrical rotary brush. The brush includes a plurality of generally longitudinally extending rows of uniform bristle tufts. Alternate tufts in alternate rows are spaced at about twice the distance as the remaining more closely spaced tufts and prepare the carpet for sweeping by the latter.PRIOR ART OF INTERESTU.S. Pat. Nos. 1,044,488, Case, 11/19/12; 1,970,355, Bennet, 8/14/34; 2,281,798, Prince, 5/5/42; 2,459,007, Taylor, 1/11/49; 2,659,921, Osborn, 11/24/53; 3,716,889, Goldstein, 2/20/73; 3,815,170, Brooks et al, 6/11/74.BACKGROUND OF THE INVENTIONVacuum cleaners have long been considered one of the most effecient devices for removing debris from carpets and the like. Many modern cleaners, when of the upright type, often comprise a power head portion having a vacuum nozzle, a rotary brush in the nozzle for engaging the carpet, and a brush drive motor; as well as an upright handle or stick pivoted to the head and including a suction motor and a storage chamber for receiving the material removed from the carpet.The rotary brush has usually comprised a cylindrical core having rows of brush bristle tufts. In many prior constructions, the tufts were arranged longitudinally along the core surface in straight or spiral rows, with adjacent tufts being close together and equally spaced.Various attempts have been made over the years to improve the ability of the rotary brush to loosen debris on the surface and deep within the carpet so that the material may be readily sucked through the nozzle into the storage means. For example, in the above-mentioned Prince U.S. Pat. No. 2,281,798, a rigid beater bar is used in conjunction with the brush row. In Taylor U.S. Pat. No. 2,459,007, it is suggested to provide alternate rows of short stiff tufts and long flexible tufts. In Osborn U.S. Pat. No. 2,659,921, it is suggested to use three rows of brush bristle tufts, each of a different stiffness. In Goldstein U.S. Pat. No. 3,716,889 it is suggested to provide alternate "agitator elements" in each row, with alternate rigid and resilient elements.It is readily apparent that all of these "improved" brushes are subject to the disadvantage of increased cost of manufacture, as compared with the aforementioned rotary brush wherein all the rows comprise identical equally spaced tufts of the same length. It is expensive to provide multiple types of tufts or other agitator elements in the same brush and has required special tufting machinery and/or multiple passes through a single machine. Furthermore, rigid agitator elements or beater bars subject the carpet to undesirable wear.SUMMARY OF THE INVENTIONThe present invention solves the aforementioned problems, and is based on the very surprising discovery that complete removal of alternate tufts from alternate tuft rows in a brush wherein the tufts are otherwise all uniform provides a substantially increased cleaning efficiency in a vacuum cleaner of the type indicated. Such a result was wholly unexpected since the normal expectation was the opposite, that is, if bristle tufts were removed from a brush, the brush would not perform as well.While the present inventors' solution to the aforementioned problems may seem simple in retrospect, it nevertheless has created an improved cleaning concept using a low cost brush which subjects the carpet to less wear.

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