Stationary Or Non-moving Agitating Means Only Patents (Class 15/367)
  • Patent number: 11103114
    Abstract: A ground brush for a cleaning appliance and a cleaning appliance with the same are provided. The ground brush includes: a body and a front dust collection strip. The body defines an air channel therein, a bottom plate of the body defines a suction port in communication with the air channel, and a rear side of the body defines an exhaust port. When the body covers a surface to be cleaned, an airtight space is defined between the air channel and the surface to be cleaned. The front dust collection strip is arranged at a front end of the body to support the ground brush for a cleaning appliance on the surface to be cleaned, defines a plurality of front air inlets in communication with the air channel, and is incline relative to a normal direction of the surface to be cleaned.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: August 31, 2021
    Assignee: MIDEA GROUP CO., LTD.
    Inventors: Xiaokang Peng, Siyu Jin, Zhonghua Li
  • Patent number: 11071424
    Abstract: Disclosed are a floor brush of a dust collector and a dust collector having same, the floor brush of a dust collector comprising: a main body, the main body defining an air channel therein and being provided with, on a lower surface at the front end thereof, a suction port in communication with the air channel, when the main body covers a surface to be cleaned, an air-tight space being formed between the air channel and the surface to be cleaned, and the front end of the main body being provided with a front air inlet port in communication with the air channel; and a flow guiding portion, the flow guiding portion being provided at the front end of the main body and being provided adjacent to the front air inlet port, and the flow guiding portion being provided with a flow guiding face so that the external air passes through the flow guiding face and the front air inlet port into the air channel.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: July 27, 2021
    Inventors: Xiaokang Peng, Siyu Jin, Zhonghua Li
  • Patent number: 9220237
    Abstract: A system for grooming pets, including a vacuum and brushes. A canister containing the motor and vacuum impeller elements is well insulated acoustically. A lengthy, acoustically insulated vacuum hose is provided. A grooming attachment is attachable to the working end of the vacuum hose, the grooming attachment being molded and shaped to minimize the noise of air flowing through the attachment under the action of the vacuum motor. Noise attenuation assembly and baffling assembly are provided nearby and aligned with air input and output ports to direct and smooth air flow to reduce noise output of the system.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: December 29, 2015
    Inventor: Jamie Dryden
  • Patent number: 8826484
    Abstract: An upstanding brush assembly for attachment to a cleaning apparatus includes a brush element and a brush clip receiving and constraining the brush element. A mounting bracket attached to a surface of the cleaning apparatus is engaged by the brush clip for positioning the brush element in a substantially vertical upstanding position.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: September 9, 2014
    Inventor: Thomas K. Schultheis
  • Patent number: 8689393
    Abstract: A device for cleaning a collector of a solar thermal electric power generation system is provided which does not need to secure any water source or the like and which improves the flexibility of selection of a place for installing the solar thermal electric power generation system. The cleaning device includes an air supply device and an air nozzle configured to blow air supplied from the air supply device, which are mounted on a self-propelled truck. The cleaning device is capable of blowing air blown from the air nozzle against a sunlight reflecting surface of a collector to clean up the sunlight reflecting surface. The air nozzle is configured to be capable of moving up and down. The cleaning device further includes a soiling degree measuring device for measuring soiling degrees of the sunlight reflecting surface before and after air blowing by the air nozzle.
    Type: Grant
    Filed: January 14, 2009
    Date of Patent: April 8, 2014
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventor: Hideaki Ota
  • Patent number: 8316505
    Abstract: A steam cleaner capable of automatically absorbing dust includes a main body; a handle arranged at an upper end of the main body; and a cleaning towel arranged at a bottom of the main body. The main body is provided with a shell, an inner cavity of the shell is provided with a steam generating device, and the inner cavity of the shell is further provided with a dust absorbing device, and wherein the dust absorbing device includes a telescopic dust absorbing head, and the shell or the handle is provided with a switch for controlling the dust absorbing head to be telescopic and absorb the dust. The shell of the steam cleaner is internally provided with the dust absorbing device with the telescopic dust absorbing head; and the switch controls the dust absorbing head to be telescopic and absorb the dust.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: November 27, 2012
    Assignee: Xiotin Industry Co., Ltd.
    Inventor: Oscar Chow
  • Patent number: 8261407
    Abstract: A vacuum cleaner accessory tool configured for use with a vacuum cleaner. The vacuum cleaner is operable to draw air through a suction hose to clean a surface. The accessory tool includes a housing that defines a chamber, and the housing includes an exterior surface and an interior surface. An outlet conduit is in fluid communication with the chamber, and the outlet conduit is configured to couple the accessory tool to the suction hose. A suction inlet aperture extends through the housing to provide fluid communication into the chamber. The accessory tool further includes a brush assembly extending from the exterior surface of the housing, and the brush assembly includes an auxiliary aperture to provide fluid communication into the chamber.
    Type: Grant
    Filed: September 1, 2009
    Date of Patent: September 11, 2012
    Assignee: Techtronic Floor Care Technology Limited
    Inventors: Robert F. Bozzelli, Chris Charlton, Andy Chick, Matt Doerfler, Markus Allemann
  • Patent number: 8196258
    Abstract: A brush assembly for a vacuum cleaner includes a brush body having a suction inlet; a main brush which is rotatably coupled to the brush body through the suction inlet to face a surface being cleaned; and a secondary brush which is rotatably mounted on the brush body to rotate between at least two positions including a first position, in which the secondary brush contacts the surface being cleaned, and a second position, in which the secondary brush does not contact the surface being cleaned.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: June 12, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Ji-ho Seo
  • Patent number: 8011061
    Abstract: A nozzle assembly of a vacuum cleaner is disclosed. The A nozzle assembly includes a main casing having an air inlet formed thereto to draw in dust or dirt from a surface to be cleaned, a drum brush disposed in the main casing to brush away the dust or dirt adhered to the surface while rotating in contact with the surface, and a subsidiary brush unit disposed in front of the main casing to preliminarily brush away the dust or dirt adhered to the surface in front of the drum brush, and having a cover disposed in front of the main casing, and a subsidiary brush member to come in elastic contact with the surface. The subsidiary brush member is configured to change a relative position to the cover, and thus to selectively maintain a contact state or a non-contact state to the surface.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: September 6, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Dong-Hun Yoo
  • Patent number: 8001653
    Abstract: A vacuum apparatus includes a housing that includes a vacuum assembly with a base. A rechargeable battery is mounted within the vacuum assembly and is electrically coupled to the blower of the vacuum assembly which creates suction through the base when the blower is turned on. A plurality of first mating charge contacts is mounted on the housing and are electrically coupled to the battery. The first mating charge contacts are engageable with second mating charge contacts mounted in an upper surface of a charging station. A power cord is electrically coupled to the second mating charge contacts to supply power to the second mating charge contacts. The battery is charged when the first and second mating charge contacts abut each other and the power cord is plugged into an electrical power source.
    Type: Grant
    Filed: June 4, 2009
    Date of Patent: August 23, 2011
    Inventors: Everton W. Longley, Michelle Longley
  • Patent number: 7958595
    Abstract: A cleaning apparatus having a cleaning system including at least one downwardly directed spray nozzle is supported by the chassis proximal the chassis forward end and in fluid communication with at least one cleaning solution tank. The at least one spray nozzle sprays cleaning solution from the tank onto the floor. At least one ground engaging agitation brush is disposed rearwardly of the at least one spray nozzle for agitating the cleaning solution sprayed onto the floor. At least one vacuum shoe is supported by the chassis rearwardly of the at least one agitation brush, and in fluid communication with the at least one recovery tank. Cleaning solution drawn into the vacuum shoe is deposited into the at least one recovery tank. In one embodiment, the apparatus is drivable. In another embodiment, the apparatus includes a second cleaning system including a vacuum squeegee.
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: June 14, 2011
    Assignee: Nilfisk-Advance, Inc.
    Inventor: Sean K. Goff
  • Patent number: 7673371
    Abstract: A vacuum broom apparatus for removing particulate debris from surfaces such as those of floors includes a housing which has an upper wall from which protrudes a vacuum inlet tube connectable to a vacuum power source. The housing includes a shroud which protrudes downwardly from the upper wall and peripherally surrounds a broom which protrudes downwardly within the shroud through a bottom opening thereof. One or more vacuum nozzles which communicate with the vacuum inlet tube are positioned adjacent to the broom. Optionally, a front wall of the shroud is elastically flexible to thereby effect an air dam between a lower edge of the front wall and a floor surface against which it may be pressed.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: March 9, 2010
    Assignee: H & J Company LLC
    Inventor: Jamshid Jim Shahbaz
  • Patent number: 7293325
    Abstract: A vacuum cleaner base plate assembly is provided according to an embodiment of the invention. The base plate assembly includes a base plate adapted to fit to a chassis bottom of a vacuum cleaner. The base plate includes one or more nozzle apertures. The base plate assembly further includes one or more trapped components configured to rest against the base plate. The base plate assembly further includes a skid plate that fits to the base plate and that holds the one or more trapped components against the base plate when the skid plate is assembled to the base plate. The base plate assembly further includes one or more fasteners that removably affix the skid plate to the base plate. The skid plate and the one or more trapped components are removably affixed to the base plate by the skid plate and the one or more fasteners.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: November 13, 2007
    Assignee: Oreck Holdings, LLC
    Inventors: Paul A. Moshenrose, Charles W. Reynolds
  • Patent number: 6568028
    Abstract: A carpet-cleaning brush, particularly for use in cleaning rugs or carpets soiled by the hair of animals kept in the room. The brush has bristles in the form of an angle or arc, a brush body for receiving the bristles, a brush head which is fixed thereto and provided with a handle, and a dust-collector head which preferably contains a suction connection. The brush body is a rubber plate, pierced by the limbs of elastic, U-shaped metal wire bristles which are fixed to the brush body and inclined toward the direction of pull of the brush. The bristles form an angle of 5-15° (&agr;) in relation to an orientation which is perpendicular to the plane of the brush body. The limbs which form part of the U-shaped bristles have a plastic coating or similar, at least on the free, protruding ends.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: May 27, 2003
    Inventors: Gyöngyi Putics, Zinaida Vonjár
  • Patent number: 6279198
    Abstract: A multi-use floor tool, with which the same nozzle can be used in both dry and wet vacuum operation, and which allows for both wet and dry cleaning attachments to be easily attached and removed is disclosed. One such cleaning attachment for dry operation is a bristle brush which, when attached to the nozzle, is able to rotate, such that debris is collected with both the push and pull cleaning motions and such that for each motion, air flows primarily through the side of the nozzle at which debris is being gathered. The attachment for wet operation is a squeegee, which is rigidly attached to the nozzle having an insert which reduces the area of air flow into the nozzle and thereby increases the effectiveness of wet cleaning. This design increases the effectiveness of both wet and dry operation, and allows the operator to effectively clean in both wet and dry conditions while using the same nozzle.
    Type: Grant
    Filed: February 18, 1999
    Date of Patent: August 28, 2001
    Assignee: Emerson Electric Co.
    Inventors: Michael F. Martin, Jeffrey L. Young
  • Patent number: 6021545
    Abstract: Vacuum cleaner attachment (1) for the wet cleaning of surfaces (20), in particular of vertical surfaces, having a liquid applicator (21), a suction channel (28) having a mouth (15) and a cleaning element (19), the liquid applicator (21) being arranged, for the purpose of continuous working, for the continuous supply of liquid. A liquid supply tank (23) for supplying the liquid applicator (21) is disposed in the vacuum cleaner attachment (1), the liquid applicator (21) being supplied with the liquid by means of capillary action.
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: February 8, 2000
    Assignee: Vorwerk & Co. Interholding GmbH
    Inventors: Antonio Delgado, Jurgen Thode, Ludger Graute
  • Patent number: 5819366
    Abstract: A wet cleaning suction nozzle having a suction opening (22) facing the floor and communicating with a nozzle outlet tube (12), scraper blades (24), one located in front of, and one behind, the suction opening as seen in the direction of movement of the nozzle, wherein the lower ends of the scraper blade abut the floor when the nozzle is used. The suction opening (22) is located closer to the floor than fastening points (23) of the scraper blades in the nozzle. The nozzle is used on hard, as well as soft floors, without being converted, and the nozzle includes spacers (31), which prevent the nozzle opening (22) from touching the floor when the nozzle is used on a hard floor, but which permits the suction opening to abut the floor when the nozzle is used on a soft floor.
    Type: Grant
    Filed: December 2, 1996
    Date of Patent: October 13, 1998
    Assignee: Aktiebolaget Electrolux
    Inventor: Anders Edin
  • Patent number: 5819365
    Abstract: A window washing accessory cleaning tool adapted for use with a water extraction cleaning machine has a solution spray nozzle integrated therewith and a combination suction and scrubbing head rotatably mounted with respect to the solution spray nozzle. The cleaning solution spray nozzle is provided on one side of a dual conduit support member and a head is rotatably mounted to the dual conduit support member. A foam applicator/scrub pad is provided along one end of the head and a suction nozzle opening defined by a squeegee blade and a rigid flange are provided one the other side of the head. With this structure, the applicator/scrub pad and suction nozzle can be rotated with respect to the cleaning solution spray nozzles, thereby making the accessory cleaning tool adaptable for a wide variety of cleaning operations. Preferably, the window washing accessory cleaning tool is removably mounted to the end of the flexible hose.
    Type: Grant
    Filed: July 15, 1996
    Date of Patent: October 13, 1998
    Assignee: Bissell Inc.
    Inventors: Eric C. Huffman, Kevin Ma Kam Hoi, Ng Tat Shing, Hok Yin Timmy Sin
  • Patent number: 5706550
    Abstract: A floor brush nozzle assembly for a vacuum cleaner is disclosed. The floor brush nozzle assembly includes an elongated generally rectangular shaped nozzle housing including a connecting passageway for association with the vacuum cleaner. A U-shaped channel surrounds the nozzle housing for receiving an upper formed end of a floor brush. The U-shaped channel includes peripherally spaced ribs that cause a complementary U-shaped formed end of the floor brush to releasably and resiliently engage undercut areas in the U-shaped channel for releasably mounting the floor brush relative to the nozzle housing. The upper formed end of the floor brush may also have an undercut configuration to enhance releasable engagement with the undercut areas in the U-shaped channel. The upper formed end of the floor brush is preferably a metal component while the nozzle housing is a molded plastic component.
    Type: Grant
    Filed: January 4, 1996
    Date of Patent: January 13, 1998
    Assignee: Emerson Electric Co.
    Inventors: Stuart V. Holsten, Jeffrey L. Young
  • Patent number: 5613271
    Abstract: A vacuum cleaner with a steam generator and a source of water under pressure has a suction hose connecting the suction head with the turbine and a dirt collector. Steam and pressurized water lines extend along the hose and the steam line runs to an orifice strip in a sole plate of the head while the spray nozzles are provided in a slot between a pair of brushes. The suction nozzle opens at a slot in the sole plate and sealing strips are provided along the longitudinal sides of the suction nozzle and the steam nozzle strip.
    Type: Grant
    Filed: October 17, 1995
    Date of Patent: March 25, 1997
    Assignee: Robert Thomas Metall- und Elektrowerke
    Inventor: Paul-Gerhard Thomas
  • Patent number: 5553349
    Abstract: A vacuum cleaner nozzle having a first nozzle part (11) which has brush elements (23) or the like facing the floor and a second nozzle part (25) which is movably arranged with respect to the first part (11) and which has at least one suction opening (27) through which air flows to an outlet tube (13) connected to the nozzle. The second nozzle part (25) is supported by the first nozzle part (11) by means of a resilient element (31). The resilient element maintains the second part (25) above the floor when the nozzle is moved on a hard surface and allows the second part (25) to move toward the floor when the nozzle is moved on a soft surface, such as a soft carpet.
    Type: Grant
    Filed: February 6, 1995
    Date of Patent: September 10, 1996
    Assignee: Aktiebolaget Electrolux
    Inventors: Lars G. Kilstrom, Nils T. Lindquist, Rolf G. Sjoberg
  • Patent number: 5539953
    Abstract: A floor nozzle for vacuum cleaners comprises a housing and two suction channels, separated by an intermediate strip, arranged in the bottom plate thereof and extending transversely to the direction of movement the intermediate strip being designed as a rigid plow strip arranged between a front and a rear cleaning edge and acting to open the nap to be cleaned, due to its digging-in effect, toward the front or rear suction channel, depending on the direction of movement.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: July 30, 1996
    Inventor: Gerhard Kurz
  • Patent number: 5499424
    Abstract: A cleaning head for use with suction means particularly suitable for cleaning hard, flat and smooth surfaces, such as glass or marble walls. The cleaning head is equipped with attachments for cleansing liquid application, scrubbing, wiping and waste liquid removal in one piece and is normally closed so that no waste liquid inside the head will leak out during quiescent operating condition.
    Type: Grant
    Filed: October 7, 1994
    Date of Patent: March 19, 1996
    Assignee: Senson Investments Limited
    Inventor: Alfred T. Lau
  • Patent number: 5497530
    Abstract: In order to reduce the energy consumption of the suction unit, on the one hand, and to improve the cleaning effect, on the other hand, of a wiper device for hard surfaces, in particular a window wiper, comprising a slit-shaped suction nozzle, on which a flexible wiper lip is arranged, which protrudes forwardly beyond the suction nozzle, it is suggested that the wiper lip be held on a wall of the suction nozzle and drawn against the opposite wall of the suction nozzle under the influence of a suction stream in the suction nozzle and thereby close the suction nozzle.
    Type: Grant
    Filed: March 25, 1994
    Date of Patent: March 12, 1996
    Assignee: Alfred Karcher GmbH & Co.
    Inventors: Roland Kamm, Eberbard Veit, Josef Schneider, Antonio De Filippo, Donald W. Murray, Michael C. Story, Carl S. Lammons
  • Patent number: 5392491
    Abstract: There is disclosed a cleaner head having a detachable mop, which can perform simuiltaneously both of dust sucking and floor mopping functions, thereby resulting in enhanced efficiency of cleaning and shortening of cleaning hours. The cleaner head according to the present invention comprises a lower cover moved closely to form a head body; a plurality of rollers mounted on the bottom of the lower cover to permit the head body to be moved freely in any direction; mop holding means for detachably holding the mop behind a dust sucking area; and locking means for locking the mop holding means.
    Type: Grant
    Filed: October 28, 1992
    Date of Patent: February 28, 1995
    Assignee: Gold Star Co., Ltd.
    Inventors: Cheol Hwang, Hyo Y. Jeoung
  • Patent number: 5386612
    Abstract: A vacuum cleaning apparatus is provided which includes a housing having a handle portion and a nozzle portion. A reservoir is defined in the housing for retaining cleaning solution or water, and a heating unit is associated with the reservoir for heating the liquid so as to generate steam for delivery to a flat surface such as a window to be cleaned. A squeegee assembly is mounted to the housing adjacent the nozzle portion for wiping the window after liquid has been deposited thereon. A motor driven fan assembly is disposed within the housing in communication with the nozzle portion for drawing excess liquid and debris into the nozzle portion. The nozzle portion defines structure for separating and containing the liquid which is drawn into the apparatus.
    Type: Grant
    Filed: April 23, 1993
    Date of Patent: February 7, 1995
    Inventor: John C. K. Sham
  • Patent number: 5280666
    Abstract: A squeegee apparatus for a vacuum cleaner system. The apparatus includes a main body portion having an integrally formed neck portion operable to releasably connect to a wand of the vacuum cleaner system. The main body portion forms a manifold and includes a lower end portion to which a squeegee member is releasably secured. The squeegee member includes a central portion having a pair of longitudinally parallel extending bumper portions, with the bumper portions each including saw tooth-shaped surfaces. The squeegee blade also depends downwardly from the central portion and outwardly of the bumper portions. The central portion also includes first and second pluralities of ports disposed on opposite sides of the squeegee blade, with one or the other of the pluralities of ports being alternately blocked off during use as the squeegee blade flexes into abutting contact with one or the other of the bumper portions while being moved back and forth over a work surface.
    Type: Grant
    Filed: June 25, 1992
    Date of Patent: January 25, 1994
    Assignee: Rexair, Inc.
    Inventors: Stephen J. Wood, Steven R. Selewski, Roy O. Erickson, Jr.
  • Patent number: 4897894
    Abstract: A vacuum cleaner nozzle comprises a body (10) having a suction passageway (11) extending therethrough, both ends of said passageway being adapted to receive a suction conduit (20). One end of the suction passageway is surrounded by a dust-brush (12) and two rotatable wing members (13) are provided at the other end. Each of the wing members comprises a resilient means (15) provided with a fiber picking material (16).
    Type: Grant
    Filed: September 17, 1987
    Date of Patent: February 6, 1990
    Assignee: Aktiebolaget Electrolux
    Inventor: Stefan M. Fahlen
  • Patent number: 4864681
    Abstract: A multi-purpose floor cleaning tool for use in picking up or collecting wet or dry media is disclosed, and includes a first passageway connecting a first side of the tool to a vacuum line, a second passageway connecting a second side of the tool to the vacuum line, and an adapter for optionally closing off the second passageway during use of the first passageway or for closing off the first passageway during use of the second passageway. One of the passageways is used exclusively for dry media whereas the other passageway is used exclusively for wet media. This requires re-positioning of the tool for the proper orientation of the dry or wet media passageway, as desired.
    Type: Grant
    Filed: June 20, 1988
    Date of Patent: September 12, 1989
    Assignee: Emerson Electric Co.
    Inventors: David R. Hult, Mark J. Tomasiak
  • Patent number: 4688294
    Abstract: A vacuum cleaner nozzle comprises a housing (10) having first and second air inlets (13,15) adapted to different cleaning duties. Each of the inlets is connected to a respective outlet (17,19) via a separate duct (16,18). The outlets are arranged on different sides of the housing and are separated by a partition (20) to form two independent sockets for a tube handle connected to a vacuum source.
    Type: Grant
    Filed: April 29, 1986
    Date of Patent: August 25, 1987
    Assignee: Aktiebolaget Electrolux
    Inventor: Sven B. Simonsson
  • Patent number: 4685170
    Abstract: A bristle component is disclosed for a floor cleaning nozzle for vacuum cleaners. The bristle component includes a bristle holding strip mounted to the housing of the nozzle. The holding strip is provided with downwardly extending bristles at the corners or sides of the housing which are longer than the remaining bristles held therein. These longer bristles extend laterally from the sides of the housing as the nozzle is moved along the floor and sweep away dust from the floor in a corner defined by the floor and a surface extending upwardly from the floor such as the wall of a room or the like.
    Type: Grant
    Filed: March 19, 1986
    Date of Patent: August 11, 1987
    Assignee: Vorwerk & Co. Interholding GmbH
    Inventors: Heinz-Jurgen Ahlf, Wieland Guhne, Hans-Peter Simm, Peter Wulf
  • Patent number: 4638526
    Abstract: A suction nozzle assembly for a vacuum cleaner, which has a suction spout having a coupling stem for fluid-connection with the vacuum cleaner, a generally rectangular nozzle housing tiltably connected with the suction spout and having a sweeping surface defined at the bottom thereof and adapted to confront a surface to be cleaned, an elongated brush assembly carried by the nozzle housing for movement between projected and retracted positions in a direction perpendicular to the longitudinal sense of the housing through the sweeping surface, a brush height adjustment device for adjustably moving the brush assembly to any one of the projected and retracted positions, and a restraint device for restraining the housing from undergoing an arbitrary tilting motion relative to the suction spout.
    Type: Grant
    Filed: March 18, 1985
    Date of Patent: January 27, 1987
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshitaka Murata, Tsuyoshi Hatano, Hideo Ohkubo
  • Patent number: 4139923
    Abstract: A suction attachment for a vacuum cleaner has a housing component and a brush component which is accommodated within the housing component. Two mounting members mount the brush component in the housing component for displacement between a retracted position in which the brushes of the brush component are received within the housing component, and an extended position in which the brushes extend to the exterior of the housing component and into contact with a surface to be vacuum cleaned. The mounting components are interconnected by connecting members for synchronous pivoting about spaced pivot axes. Each mounting member is pivotally mounted on the brush component and has a support portion which engages the housing component.
    Type: Grant
    Filed: March 22, 1977
    Date of Patent: February 20, 1979
    Assignee: Vorwerk & Co. Interholding GmbH
    Inventor: Eberhard Rother