公开(公告)号：US07513464B1

公开(公告)日：2009-04-07

申请号：US11686467

申请日：2007-03-15

Applicant: Robert C. Berfield

Inventor： Robert C. Berfield

IPC: A47G29/00

CPC classification number: A47L9/0036 ,  A47L9/0063

Abstract: A holder for storing ribbed vacuum cleaner hoses and associated vacuum cleaner tubes that includes a pair of support members mounted on a support, each support member having one or more ribs to engage the corrugated surface of the hose.

Abstract translation: 一种用于储存带肋吸尘器软管和相关联的真空吸尘器管的保持器，其包括安装在支撑件上的一对支撑构件，每个支撑构件具有一个或多个肋以与软管的波纹表面接合。

公开(公告)号：US06530116B2

公开(公告)日：2003-03-11

申请号：US09782496

申请日：2001-02-13

Applicant: Robert C. Berfield ,  Ronald Griffin ,  Craig Seasholtz

Inventor： Robert C. Berfield ,  Ronald Griffin ,  Craig Seasholtz

IPC: A47L514

CPC classification number: A47L9/0081 ,  A47L5/14 ,  A47L5/365

Abstract: A vacuum cleaner includes a housing having a housing passage with a passage inlet, air entering through the passage inlet flowing in a first direction and the housing passage directing air flowing therethrough in a second direction which is more than 90 degrees different from the first direction. The vacuum cleaner also includes a blower adapted to be used separately from the vacuum cleaner, the blower having a blower housing with a blower inlet, a blower outlet, and defining a blower passage between the blower inlet and the blower outlet, an impeller disposed in the blower passage to move air between the blower inlet and the blower outlet and a motor mounted to the blower housing and coupled to the impeller to move the impeller. The blower is detachably secured to the housing with the blower outlet disposed in communication with the passage inlet.

公开(公告)号：US06440227B1

公开(公告)日：2002-08-27

申请号：US09627840

申请日：2000-07-28

Applicant: Robert C. Berfield ,  Alan Kaufman

Inventor： Robert C. Berfield ,  Alan Kaufman

IPC: A47L902

CPC classification number: A47L7/0009 ,  A47L7/0038 ,  A47L7/0042 ,  A47L9/02

Abstract: A vacuum cleaner capable of collecting wet or dry media includes a hose having an inlet end and an outlet end that is coupled to the vacuum cleaner. A motor is supported by a portion of the vacuum cleaner and applies a vacuum to the outlet end of the vacuum hose. A media inlet is positioned near the inlet end of the vacuum hose. An air intake for admitting air into the vacuum hose is provided near the media inlet. The air intake can be adapted to receive a detachable separate device in order to provide an air intake that is remotely positioned from the media inlet. Alternatively, the air intake can be provided on an attachment to or an integral part of the vacuum hose for providing the air intake at a remote distance from the media inlet. A distal end of the vacuum hose is immersed in a liquid to be collected so that the media inlet is immersed in the liquid and so that the air intake is exposed to a source of air. A vacuum is applied to the vacuum hose to collect the liquid through the media inlet while air is simultaneously drawn via the air intake into the vacuum hose and mixed with the collected liquid to increase the liquid lift height capability of the vacuum cleaner.

Abstract translation: 能够收集湿或干介质的真空吸尘器包括具有入口端和耦合到真空吸尘器的出口端的软管。 电动机由真空吸尘器的一部分支撑并且对真空软管的出口端施加真空。 介质入口位于真空软管入口端附近。 在介质入口附近设有用于将空气引入真空软管的进气口。 空气进口可以适于接收可拆卸的分离装置，以便提供从介质入口远程定位的进气口。 或者，进气口可以设置在与真空软管的附件或整体部分上，用于在离介质入口远的距离处提供进气口。 将真空软管的远端浸入待收集的液体中，使得介质入口浸入液体中，使得进气口暴露于空气源。 真空管被施加到真空软管上以通过介质入口收集液体，同时空气通过进气口同时被抽入真空软管并与收集的液体混合以提高真空吸尘器的液体提升高度能力。

公开(公告)号：US06440191B1

公开(公告)日：2002-08-27

申请号：US09594542

申请日：2000-06-14

Applicant: Robert C. Berfield ,  Li H. Liu

Inventor： Robert C. Berfield ,  Li H. Liu

IPC: B01D2714

CPC classification number: A47L9/127 ,  A47L5/365 ,  A47L7/0038 ,  A47L7/0042 ,  Y10S55/03

Abstract: A vacuum cleaner has a tank and a lid for closing off the tank. A motor/impeller unit is disposed inside the tank for generating an airstream. A filter support is attached to the lid and disposed inside the tank. A foam sleeve for removing liquid from the airstream is attached to the filter support. An air filter cartridge is removably attached to the filter support outside of the foam sleeve. The foam sleeve may remain in place as the filter cartridge is attached for dry pick-up or removed for wet pick-up. In addition, a drain hole is provided in the lid for draining liquid passing through the foam sleeve.

Abstract translation: 真空吸尘器具有用于封闭罐的罐和盖。 电动机/叶轮单元设置在罐内以产生气流。 过滤器支撑件附接到盖并且设置在罐内。 用于从气流中除去液体的泡沫套筒附接到过滤器支撑件。 空气过滤器滤芯可移除地附接到泡沫套筒外部的过滤器支撑件。 泡沫套筒可以保持在适当的位置，因为过滤器滤芯被连接用于干燥的拾取或去除用于湿式拾取。 此外，在盖中设置排水孔，用于排出通过泡沫套筒的液体。

公开(公告)号：US06358005B1

公开(公告)日：2002-03-19

申请号：US09656679

申请日：2000-09-07

Applicant: Robert C. Berfield

Inventor： Robert C. Berfield

IPC: F04D2944

CPC classification number: A47L9/0081 ,  A47L5/22

Abstract: A vacuum cleaner includes a driven impeller that moves working air for the vacuum cleaner. A first housing includes a first wall and a second housing includes a second wall opposite the first wall, and an outlet for the working air. The impeller rotates and draws the working air through an opening and directs the working air radially outwardly toward the first wall and then through an annular passage formed between the first wall and the second wall. The annular passage restricts the flow of working are to provide back pressure on the impeller.

Abstract translation: 真空吸尘器包括一个驱动叶轮，该驱动叶轮移动真空吸尘器的工作空气。 第一壳体包括第一壁，第二壳体包括与第一壁相对的第二壁和用于工作空气的出口。 叶轮旋转并通过开口抽吸工作空气，并将工作空气径向向外朝向第一壁引导，然后通过形成在第一壁和第二壁之间的环形通道。 环形通道限制了工作流程是为了在叶轮上提供背压。

公开(公告)号：US06347430B1

公开(公告)日：2002-02-19

申请号：US09513607

申请日：2000-02-25

Applicant: Randy L. Buss ,  Robert C. Berfield

Inventor： Randy L. Buss ,  Robert C. Berfield

IPC: A47L700

CPC classification number: A47L7/0042 ,  A47L7/0028 ,  A47L7/0038 ,  A47L11/30 ,  A47L11/4011 ,  A47L11/4019 ,  A47L11/4025 ,  A47L11/4027 ,  A47L11/4044 ,  A47L11/4072 ,  A47L11/4077 ,  A61L2/14 ,  A61L2/20 ,  F16K1/526 ,  Y10S15/10 ,  Y10T137/7306

Abstract: A vacuum cleaner has an electric motor driving an air impeller for creating suction and a pump impeller which is located in the tank and draws liquid material from the bottom of the tank and expels it from the tank. The vacuum cleaner may have an electrical or mechanical shut-off apparatus which turns off the electric motor if the water level in the tank is too high. The shut-off switch may be bypassed by a user to allow the motor to continue driving the pump impeller to remove liquid from the tank.

公开(公告)号：US06264427B1

公开(公告)日：2001-07-24

申请号：US09248487

申请日：1999-02-10

Applicant: Robert C. Berfield

Inventor： Robert C. Berfield

IPC: F04D2944

CPC classification number: A47L9/0081 ,  A47L5/22

Abstract: A vacuum cleaner includes a driven impeller that moves working air for the vacuum cleaner. A first housing includes a first wall and a second housing includes a second wall opposite the first wall, and an outlet for the working air. The impeller rotates and draws the working air through an opening and directs the working air radially outwardly toward the first wall and then through an annular passage formed between the first wall and the second wall. The annular passage restricts the flow of working are to provide back pressure on the impeller.

Abstract translation: 真空吸尘器包括一个驱动叶轮，该驱动叶轮移动真空吸尘器的工作空气。 第一壳体包括第一壁，第二壳体包括与第一壁相对的第二壁和用于工作空气的出口。 叶轮旋转并通过开口抽吸工作空气，并将工作空气径向向外朝向第一壁引导，然后通过形成在第一壁和第二壁之间的环形通道。 环形通道限制了工作流程是为了在叶轮上提供背压。

公开(公告)号：US6119304A

公开(公告)日：2000-09-19

申请号：US281671

申请日：1999-03-30

Applicant: Robert C. Berfield ,  Randy L. Buss ,  Marcus Rhone

Inventor： Robert C. Berfield ,  Randy L. Buss ,  Marcus Rhone

IPC: A47L5/22 ,  A47L7/00 ,  F04D29/26 ,  F16K5/06 ,  F16K37/00

CPC classification number: A47L7/0019 ,  A47L5/22 ,  A47L7/0028 ,  A47L7/0038 ,  A47L7/0042 ,  F04D29/263 ,  F16K37/0008 ,  F16K5/0642

Abstract: A vacuum cleaner has an electric motor driving an air impeller for creating low pressure and a pump which draws liquid material through an inlet tube from the bottom of a tank and expels it from the tank. A priming apparatus is disposed between the air impeller and the interior of the pump to place the interior of the pump in air flow communication with a low pressure area generated by the air impeller. With the interior of the pump in air flow communication with the low pressure area generated by the air impeller, the pump is able to draw liquid material received by the tank up through the pump inlet to prime the pump.

Abstract translation: 真空吸尘器具有驱动用于产生低压的空气叶轮的电动机和从罐的底部通过入口管抽出液体材料并将其从罐排出的泵。 启动装置设置在空气叶轮和泵的内部之间，以使泵的内部与由空气叶轮产生的低压区域进行气流连通。 由于泵的内部与空气叶轮产生的低压区域的空气流动连通，泵能够通过泵入口将容纳在罐中的液体材料向上拉动以引导泵。

公开(公告)号：US6079076A

公开(公告)日：2000-06-27

申请号：US903635

申请日：1997-07-31

Applicant: Robert C. Berfield

Inventor： Robert C. Berfield

IPC: A47L7/00 ,  A47L9/14 ,  A47L9/28

CPC classification number: A47L9/2889 ,  A47L7/0028 ,  A47L7/0038 ,  A47L7/0042 ,  A47L9/14 ,  A47L9/1427 ,  A47L9/2842 ,  A47L9/2857

Abstract: A vacuum cleaner has an electric motor driving an air impeller for creating suction and a pump which draws liquid material through an inlet tube from the bottom of a tank and expels it from the tank. The vacuum cleaner also includes a non-water soluble collection bag that attaches to a tank inlet and is disposed within the tank. The collection bag filters large particulate material out of the material which is vacuumed into the tank.

Abstract translation: 真空吸尘器具有驱动空气叶轮以产生吸力的电动马达和泵，其通过入口管从罐的底部抽出液体材料并将其从罐排出。 真空吸尘器还包括附着到罐入口并且设置在罐内的非水溶性收集袋。 收集袋从被抽吸到罐中的材料中过滤大颗粒物质。

公开(公告)号：US5966775A

公开(公告)日：1999-10-19

申请号：US756165

申请日：1996-11-25

Applicant: Robert C. Berfield

Inventor： Robert C. Berfield

IPC: A47L7/00 ,  A47L11/30

CPC classification number: A47L7/0042 ,  A47L11/30 ,  A47L11/4011 ,  A47L11/4019 ,  A47L11/4025 ,  A47L11/4027 ,  A47L11/4044 ,  A47L11/4072 ,  A47L11/4077 ,  A47L5/365 ,  A47L7/0028 ,  A47L7/0038

Abstract: A vacuum cleaner has an electric motor driving an air impeller for creating suction and a pump impeller which draws liquid material through an inlet tube from the bottom of the tank and expels it from the tank. A removable plenum having openings separates the tank from the air impeller. A baffle is movable by a user to cover the openings to create a low pressure area above the plenum with respect to the pressure in the tank. The pump is located above the plenum and has an aperture in the pump housing. When the baffle covers the openings in the plenum, the air pressure differential drives the liquid material through the inlet tube into the pump housing thereby priming the pump.

Abstract translation: 真空吸尘器具有驱动空气叶轮以产生吸力的电动马达和从罐的底部通过入口管抽出液体材料的泵叶轮并将其从罐排出。 具有开口的可拆卸气室将罐与空气叶轮分开。 挡板可由使用者移动以覆盖开口，以相对于罐中的压力产生压力通风室上方的低压区域。 泵位于通风室的上方，并在泵壳体中具有孔。 当挡板覆盖通风室中的开口时，气压差将液体材料通过入口管驱动进入泵壳体，从而起动泵。