Oscillating Agitator, E.g., Sweeping Patents (Class 15/381)
  • Patent number: 11873611
    Abstract: A collection device for debris and animal waste is an apparatus that optimizes airflow to effectively and safely collect debris, preferably pet waste. The apparatus includes a canister, at least one handle assembly, an airflow inlet nozzle, a portable power source, and a fan assembly. The canister houses collected debris and the fan assembly. The at least one handle assembly, the airflow inlet nozzle, and the portable power source are mounted with the canister. The at least one handle assembly allows a user to easily maneuver the canister and the airflow inlet nozzle. The fan assembly suctions debris into a debris chamber of the canister through the airflow inlet nozzle. The portable power source provides the necessary power for the fan assembly to operate. The apparatus further includes an air-permeable collection bag that is housed within the debris chamber to facilitate the removal of collected pet waste within the canister.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: January 16, 2024
    Inventors: Jerry Robichaux, Nurcan Robichaux
  • Patent number: 10980385
    Abstract: Oscillating mechanisms with side brushes are presented including: a base assembly, the base assembly including, a base plate, a rotating axle extending perpendicularly from the base plate, at least one arm coupled with the rotating axle, a slot along a path of the at least one arm, and a first anchor positioned along a proximal end of the slot; and a brush assembly slidingly coupled with the base assembly, the brush assembly including, a hub slidingly coupled with the base plate along the slot, a side brush coupled with the hub, the side brush extending outwardly from the base assembly, a second anchor positioned along the hub, and a return spring coupled with the first anchor and the second anchor. In some embodiments, mechanisms further include: at least two arms coupled with the rotating axle, the at least two arms positioned at least 90 degrees apart from each other.
    Type: Grant
    Filed: March 17, 2018
    Date of Patent: April 20, 2021
    Inventor: Ali Ebrahimi Afrouzi
  • Patent number: 8997306
    Abstract: A floor cleaning machine has a housing and a movable hood that covers over vacuum and liquid hoses of the machine that are visible in prior art floor cleaning machines. The vacuum and liquid hoses are each pivotally connected to a wall of the machine housing and are also pivotally connected to a transparent dome provided on the hood. These connections reduce stresses on the hoses when the hood is moved and allow the dome to pivot relative to the hood. The floor cleaning machine also has a pair of slit orifices that eject fan spray patterns of cleaning liquid that are non-coplanar and do not intersect each other. Furthermore, the floor cleaning machine has an oscillating brush assembly that includes a brush that is replaceable without using tools. The brush height can be adjusted via an adjustment member provided on the oscillating portion of the assembly.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: April 7, 2015
    Assignee: Rug Doctor, LLC
    Inventors: Jason E. Hill, Timothy J. Wall, Steven A. Wahl, Schubert Pereira, Benjamin J. Heath, David James Gennrich, Randall Scott Koplin, Felix Rodriguez Perfino
  • Patent number: 8898859
    Abstract: A vacuum cleaner comprising: a secured tube secured horizontally to the front surface of the main body of the cleaner and sucks in dust from the outside due to a motor in the main body; a pair of securing members which secure two ends of the secured tube to the main body and convey the sucked-in dust to a filter in the main body; and a suction tube which is rotatably provided on the outer circumferential surface of the secured tube and rolls along the surface to be cleaned, and in the cylindrical surface of which are formed dust-suction holes for sucking in dust. Because the suction tube in which the plurality of dust-suction holes are formed is rotatably provided on the outer circumferential surface of the secured tube, the suction tube continuously turns while cleaning bedding by pushing or pulling the main body, and thus the bedding is not sucked into the secured tube.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: December 2, 2014
    Assignee: Tekforus Inc.
    Inventor: Byung-Ho Song
  • Patent number: 8468648
    Abstract: An air conditioning coil cleaning system including a portable vacuum blower equipped with a plurality of fluid supply reservoirs and a fluid pump, a suction hose with an electric power cord and fluid supply lines attached to a remote hand held brush head containing an elongated oscillating wiper brush. Fluids may be selectively sprayed onto coils being cleaned while vacuuming to reduce airborne debris and debris accumulation in the coil catch pan.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: June 25, 2013
    Inventors: Ricky D. Smith, Randy Wilkerson
  • Publication number: 20130152334
    Abstract: A pick-up head system for use with a surface cleaning vehicle comprises a housing having a substantially hollow interior and a suctioning bottom opening. A debris suctioning inlet in the housing is disposed adjacent the first end of the housing for suctioning debris into the housing. A debris outlet in the housing is open in fluid communication and debris transfer relation to the substantially hollow interior of the housing. Debris is suctioned into the substantially hollow interior of the housing through the debris suctioning inlet, and is discharged from the housing through the debris outlet.
    Type: Application
    Filed: June 13, 2012
    Publication date: June 20, 2013
    Inventor: Roger P. Vanderlinden
  • Patent number: 8448293
    Abstract: A wet extraction floor cleaning device having a base assembly adapted for movement on a surface being cleaned, an operating handle pivotally attached to the base assembly, a supply tank having a supply tank outlet, and a recovery tank having a recovery tank inlet and a recovery tank outlet. The base assembly has an inlet nozzle that extends from an inlet slit proximal the surface being cleaned to a nozzle outlet. The device further includes a fluid deposition assembly that can be selectively placed in fluid communication with the supply tank outlet, a vacuum source, and first and second external pockets. The supply and recovery tanks are adapted to be selectively placed in the first and second external pockets, thereby placing the supply tank outlet in fluid communication with the fluid deposition system, the recovery tank inlet in fluid communication with the nozzle outlet, and the recovery tank outlet in fluid communication with the vacuum source inlet.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: May 28, 2013
    Assignee: Electrolux Home Care Products, Inc.
    Inventor: Arnie Sepke
  • Publication number: 20110308034
    Abstract: A portable vacuum cleansing system and method having a variable suction control, multiple cleaning head attachments, and an oscillating mechanism for exfoliating and deep cleaning various body parts. The system also preferably includes a UV LED light source for illumination and antimicrobial treatment. The system may be used for gentle and stimulating removal of dander, dirt, and foreign particles from the body and scalp, without irritation. Interchangeable brush and comb attachments are available for personal use and are distinguishable by color for use between family members. The system may also be used for removal of dander, dirt, and foreign particles from pets.
    Type: Application
    Filed: June 18, 2010
    Publication date: December 22, 2011
    Inventors: J.J. Jack Powers, Steven Bangos
  • Patent number: 8042222
    Abstract: A vacuum attachment for a vacuum cleaner including a housing having a vacuum channel. A roller is rotatably and displaceably disposed in a region of the vacuum channel and driveable during a vacuuming operation. The roller includes at least one of bristles and baffle walls configured to be in partial contact with a floor covering during the vacuuming operation. At least one roller magnet is disposed on the roller at least one end thereof. At least one housing magnet is non-rotatably disposed on the housing axially adjacent to the at least one roller magnet and configured to interact with the at least one roller magnet so as to alternately at least one of attract and repel the roller so that the roller performs an oscillatory motion as it rotates.
    Type: Grant
    Filed: December 10, 2007
    Date of Patent: October 25, 2011
    Assignee: Miele & Cie. KG
    Inventors: Martin Behrenswerth, Markus Druecker, Guenther Ennen, Cornelius Wolf
  • Patent number: 7814612
    Abstract: A wet extraction floor cleaning device having a base assembly adapted for movement on a surface being cleaned, an operating handle pivotally attached to the base assembly, a supply tank having a supply tank outlet, and a recovery tank having a recovery tank inlet and a recovery tank outlet. The base assembly has an inlet nozzle that extends from an inlet slit proximal the surface being cleaned to a nozzle outlet. The device further includes a fluid deposition assembly that can be selectively placed in fluid communication with the supply tank outlet, a vacuum source, and first and second external pockets. The supply and recovery tanks are adapted to be selectively placed in the first and second external pockets, thereby placing the supply tank outlet in fluid communication with the fluid deposition system, the recovery tank inlet in fluid communication with the nozzle outlet, and the recovery tank outlet in fluid communication with the vacuum source inlet.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: October 19, 2010
    Assignee: Electrolux Home Care Products, Inc.
    Inventors: Arnie Sepke, Randall Sandlin, Vince Bobrosky, Bill Reimer
  • Patent number: 7810211
    Abstract: A vacuum cleaner is provided that includes a vacuum cleaner main body having a suction pump, a suction nozzle portion that sucks impurities by a suction force supplied by the suction pump, a suction passage that connects the suction nozzle portion to the suction pump, an agitator installed at the suction passage, and a driving device that makes the agitator perform a linear translation. As the agitator is formed narrow and long, a bottom surface of the suction nozzle portion may maintain a small suction area. Therefore the vacuum cleaner attains a high surface pressure which is an advantage of an ordinary type suction nozzle portion, and a high drag coefficient of impurities which is an advantage of a brush type suction nozzle portion.
    Type: Grant
    Filed: July 17, 2007
    Date of Patent: October 12, 2010
    Assignee: LG Electronics Inc.
    Inventors: Chung-ook Chong, Keyong-seon Jeong, Kie-tak Hyun, Seong-koo Cho, Geun-bae Hwang, Kyu-chun Choi, Jin-hyouk Shin, Jong-kyu Jang
  • Patent number: 7657967
    Abstract: A brush vibrating apparatus for a vacuum cleaner. The brush vibrating apparatus includes a brush provided in a head portion of the vacuum cleaner and reciprocating and rotating for separating foreign substances from an object to be cleaned; support units provided on the head portion for rotatably supporting the brush; an elastic force supply unit installed between the brush and the support units for supplying elastic force from both sides of a center of the reciprocation of the brush to the center; and a driving force supply unit for supplying driving force, thereby minimizing noise and vibration generated from the reciprocation of the brush, thus allowing the vacuum cleaner to be operated in a smooth and calm state.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: February 9, 2010
    Assignee: LG Electronics Inc.
    Inventors: Young Sok Nam, Seong Ho Cho, Myung Keun Yoo
  • Patent number: 7458131
    Abstract: Disclosed herein is a method for determining a frequency of a power brush in a vacuum cleaner. According to the method of the present invention, a mechanical oscillation frequency of a driving unit, which includes a brush body reciprocated within a range of prescribed angles, and a torsion bar for providing a prescribed elastic force to angular rotation of the brush body, is set equally to a driving frequency of a power supply unit, which drives the driving unit, or is set a prescribed percentage higher or lower than the driving frequency of the power supply unit, so that the driving unit can resonate. A large amount of movement is obtained using a small amount of power by means of the resonance.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: December 2, 2008
    Assignee: LG Electronics Inc.
    Inventors: Myung Keun Yoo, Jun Young Lim, Yo Han Lee, Sang Young Kim
  • Publication number: 20080289138
    Abstract: A suction port assembly and vacuum cleaner having the same is disclosed. The suction port assembly includes a casing comprising a suction port which draws in dust from a surface being cleaned; a drum brush which is disposed rotatably in the casing, on an external surface of which a plurality of bristles are arranged to shake off dust from the surface being cleaned; and a rib which is disposed at a position close to the drum brush, is mounted in the casing so that its one end is in contact with the bristles, and detaches the dust from the bristles when the drum brush rotates; and wherein the bristles are contacted on a slant relative to the rib to prevent the drum brush from rotating when the casing is pulled towards a user.
    Type: Application
    Filed: October 19, 2007
    Publication date: November 27, 2008
    Inventors: Dong-Houn Yang, Hiroyuki Uratani, Hwa-Gyu Song, Sung-Cheol Lee, Hyun-Ju Lee
  • Patent number: 7421758
    Abstract: Disclosed herein is an upright vacuum cleaner with a swing brush. The upright vacuum cleaner comprises an upright cleaner body having a suction nozzle, a drive unit mounted in the cleaner body for moving the cleaner body forward or rearward, a grip unit slidably mounted to the upper end of the cleaner body, the grip unit having a sensor for sensing a sliding direction of the grip unit, a control unit for controlling the drive unit to be operated, such that the cleaner body is moved forward or rearward, based on information sensed by the sensor, a movement converting unit for converting a rotating movement of the drive unit to an angular reciprocating movement, and a swing brush connected to the movement converting unit for performing the angular reciprocating movement. The swing brush is mounted in a suction nozzle of the cleaner body while being in contact with the floor.
    Type: Grant
    Filed: December 8, 2005
    Date of Patent: September 9, 2008
    Assignee: LG Electronics Inc.
    Inventors: Sang-young Kim, Jun-young Lim
  • Patent number: 7363682
    Abstract: The present invention discloses a suction head for a vacuum cleaner, including a casing having a suction port for sucking alien substances from the floor, an agitator rotatably installed inside the suction port, a plurality of brushes being arranged on the agitator in the length direction, an agitator driving unit for driving the agitator to perform reciprocating rotation in a predetermined angle range, and a resonance unit for resonating the reciprocating rotation of the agitator driving unit. The suction head for the vacuum cleaner improves cleaning performance of the vacuum cleaner.
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: April 29, 2008
    Assignee: LG Electronics Inc.
    Inventors: Jun-Young Lim, Myung-Keun Yoo, Yong-Won Choi
  • Patent number: 7346956
    Abstract: An automatic cart wash apparatus. The automatic cart wash apparatus provides improved cleaning of stock carts on a regular basis over manual cleaning by store employees. The automatic cart wash apparatus includes three main stages: a debris removal (vacuum) stage, a cleaning (wash, sanitize, rinse) stage, and a drying stage. The debris removal stage uses forced air and/or suction to remove solid and generally non-soluble waste, such as a paper or other trash and debris, from a stock cart. The cleaning stage uses a selection of detergents, sanitizing agents, and rinse agents to remove soluble or sticky waste, such as food and liquids, and to kill germs, viruses, and bacteria present on the cart. The drying stage removes excess liquids from the cart making it ready for use by the next customer.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: March 25, 2008
    Inventor: Scott E. Andre
  • Patent number: 7302733
    Abstract: A cleaning machine for floors and carpets includes a vacuum pick-up in front of the machine for suctioning loose material and debris off the floor. A microfiber cleaning assembly is mounted beneath the machine for cleaning the floor following the vacuum pick-up. The microfiber cleaning element may be motor driven. A source of solution delivers a controlled amount of solution or water to moisten the microfiber cloth. A vacuum motor provides suction to the forward vacuum pick-up, routes the suctioned air through a filter, and the filtered air is then delivered to an air diffuser to dry any residual moisture behind the microfiber cleaning assembly. The microfiber cleaning assembly may have two offset pads driven by a reciprocating or oscillating drive, or one or two cylindrical rollers for receiving and securing the microfiber fabric in the form of a sleeve.
    Type: Grant
    Filed: September 8, 2005
    Date of Patent: December 4, 2007
    Assignee: Minuteman International, Inc.
    Inventors: Michael A. Rau, Jesse V. Mondigo, David R. Holly, Jeffrey W. Pollack
  • Patent number: 7089624
    Abstract: A cleaner is provided for cleaning the end surface area of a ferrule of a fiber optic connector. The cleaner includes a housing having a mating portion for mating the cleaner with the connector. A cleaning head is movably mounted on the housing for movement across the end surface area. A motor is mounted on the housing and is coupled to the cleaning head for moving the cleaning head in response to operation of the motor. An air jet is mounted on the housing for directing a stream of a cleaning medium toward the cleaning head to remove residue from the end surface area. An exhaust is provided on the housing for removing and evacuating residue from the end surface area. A plurality of the cleaners are mounted on a dummy circuit board for cleaning the end surface areas of the ferrules of a plurality of fiber optic connectors mounted in a given pattern on a backplane of a chassis.
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: August 15, 2006
    Assignee: Molex Incorporated
    Inventors: Vyacheslav Malevants, Igor Grois
  • Publication number: 20040134024
    Abstract: A fluid recirculating cleaning device includes an exhaust port defining an exhaust port longitudinal axis, a fluid source end and an exhaust end defining a first cross-sectional area. A suction port includes a suction port longitudinal axis, a fluid exit end and a fluid entrance end defining a second cross-sectional area greater than the first cross-sectional area. The suction port includes a second outer surface that extends from the entrance end toward the fluid exit end. A vacuum blower motor sucks fluid in through the suction port to create fluid flow away from the vacuum motor and toward the exhaust port exhaust end. The exhaust port exhaust end is recessed from the suction port fluid entrance end and the two ports are located with respect to one another so that fluid flow from the exhaust port will be effectively drawn into the suction port.
    Type: Application
    Filed: November 12, 2003
    Publication date: July 15, 2004
    Inventor: Donavan J. Allen
  • Publication number: 20010037537
    Abstract: Provided is a vibrating section having an ultrasonic transducer of piezoelectric elements and a rear ultrasonic horn and a front ultrasonic horn, the horns being joined to the transducer. The ultrasonic transducer has a consumption power set at 8 W or less. The ultrasonic horn has a flat front end surface, the area of the front end surface being set at 0.07 to 1 cm2.
    Type: Application
    Filed: April 27, 2001
    Publication date: November 8, 2001
    Inventors: Noriyuki Kitaori, Takahisa Yamashiro, Takeshi Miyamura, Kiyoteru Osawa, Masayasu Sato
  • Patent number: 6148475
    Abstract: A vacuum floor cleaning system is provided having a carpet fiber agitating brush which oscillates in a plane horizontal to the floor. The vacuum floor cleaning system of the present invention includes generally a base member supported above the floor by wheels. The base member defines a nozzle opening positioned in close proximity to the floor and an air flow path between the nozzle and a dirt accumulation container. The base member serves as a mounting container for an electric motor, a suction producing fan, and a carpet fiber agitating brush bar.The electric motor is mounted to a motor baseplate in the base member and drives a rotating motor shaft which protrudes from a motor housing. The suction fan is mechanically coupled to and rotatably driven by the motor shaft to produce an air flow along the air flow path from the floor to the dirt accumulation container.
    Type: Grant
    Filed: June 8, 1999
    Date of Patent: November 21, 2000
    Assignee: The Scott Fetzer Company
    Inventor: Thomas W. Stross
  • Patent number: 5901411
    Abstract: A suction tool for an electric vacuum cleaner includes: a suction tool body which is connected to the vacuum cleaner body and has a suction inflow passage therein for conducting a suction air stream from a suction port, to the vacuum cleaner body; and a movable brush which is provided inside the suction inflow passage formed in the suction tool body and is driven by a driver device. In this tool, the movable brush sways and reciprocates back and forth about a support shaft, perpendicular to the direction of the suction inflow stream. Alternatively, the tool may have a linear motor which operates so as to reciprocate a rod which is liked at one end of it with oscillatory plate pivoted inside the suction tool. Further, this movable brush may be formed of a unit which is composed of a sweeping member having a pair of front and rear sweeping parts and a moving brushing part embedded in between, wherein the front sweeping part is shorter than the rear sweeping part.
    Type: Grant
    Filed: December 31, 1996
    Date of Patent: May 11, 1999
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shigenori Hato, Mikio Yagi, Noriaki Miyoshi, Kiyoshi Ishii, Yuji Ohnishi
  • Patent number: 5440782
    Abstract: A vacuum cleaner suction nozzle attachment which permits to use a vacuum cleaner in the fashion of a broom, namely, which is capable of vacuuming dust while sweeping dust out of a narrow space or out of a corner portion of a wooden or Tatami floor. The suction nozzle attachment includes a joint pipe 1 which is connectible to a suction pipe of a vacuum cleaner. The joint pipe 1 has its fore end pivotally connected to an apex portion of a brush holder box 2 of a flattened box-like shape for adjustments of the joint pipe angle relative to the brush holder box. A brush is mounted in an intake opening at the bottom of the brush holder box so that the suction nozzle attachment presents a broom-like shape as a whole.
    Type: Grant
    Filed: November 29, 1993
    Date of Patent: August 15, 1995
    Assignee: Azuma Industrial Co., Ltd.
    Inventor: Shusuke Yamashita
  • Patent number: 4972544
    Abstract: A positive displacement air motor providing power to a rotating brush, brush agitator, or flexible blades for use in cleaning carpets, tile or wooden floors, upholstery, and drapes, allowing such air powered cleaning device to completely function with only the air provided by a vacuum cleaning motor or system.
    Type: Grant
    Filed: March 13, 1989
    Date of Patent: November 27, 1990
    Assignee: M & S Systems, Inc.
    Inventor: William J. Reid
  • Patent number: 4733432
    Abstract: A power brush e.g. for a vacuum cleaner or street sweeper has its bristle bodies swivelably mounted on a member which is given an orbital movement so that the eccentric axes of the bristle bodies with respect to their swivel axis induces an additional oscillatory motion of each bristle body as it moves in the orbital path generated by the motion of the member on which its carrier is mounted.
    Type: Grant
    Filed: October 17, 1986
    Date of Patent: March 29, 1988
    Inventor: Boris Novoselsky
  • Patent number: 4574419
    Abstract: The invention relates to a device for surface treatment, particularly for cleaning, polishing and grinding, and including a housing provided with a handle, which surrounds at least partly an electric motor rotating in an unbalanced manner due to a balance weight, and wherein the motor transfers its oscillating movement to a rotatable tool carrier extending transversely to the axle of the motor through a rigid connection, and wherein the oscillation system, which consists of the unbalanced drive motor and a tool carrier, is oscillatably arranged on the housing.
    Type: Grant
    Filed: November 9, 1983
    Date of Patent: March 11, 1986
    Inventor: Franz Lex
  • Patent number: 4468835
    Abstract: A ribbon of flexible fabric (e.g., nylon) is folded and riveted near the fold to form an attachment loop. The loop is then coupled on a centrally located support rod inside an air duct, the ribbon ends extending beyond the exit of the duct. When air is forced through the duct, the free ends oscillate rapidly to brush away particulates on a surface being cleaned. The support rod is a portion of a clip which is removably coupled to the duct. The duct is cylindrical and may comprise a common, commercially available vacuum cleaner tube.
    Type: Grant
    Filed: December 20, 1982
    Date of Patent: September 4, 1984
    Inventor: William A. Rhodes
  • Patent number: 4454627
    Abstract: A cleaning device operated in conjunction with a vacuum cleaner includes a housing which is composed of a motor housing accommodating a drive motor, a removable nozzle plate formed with a first individual nozzle and a second surface nozzle and enclosing a working tool with a brush, and an air-duct housing forming a suction duct connectable to the vacuum cleaner.
    Type: Grant
    Filed: November 16, 1981
    Date of Patent: June 19, 1984
    Assignee: Vorwerk & Co. Interholding GmbH
    Inventors: Hans-Peter Simm, Wieland Guhne, Christoph Hoesch, Renate Friedrichs
  • Patent number: 4430768
    Abstract: Agitator restrictor structure in combination with a revolving or a reciprocating type sweep drive is located close to the nozzle mouth in a suction cleaner by providing a cavity in the agitator structure for recessing the major portion of the cleaning brush to retain the designed bristle tuft lengths. In this location, the agitator structure restricts and changes the shape of the airstream at the nozzle opening to increase its speed, resulting in greater cleaning efficiency.
    Type: Grant
    Filed: March 24, 1982
    Date of Patent: February 14, 1984
    Inventor: Harry E. Novinger
  • Patent number: 4272861
    Abstract: The carpet cleaning device of this invention includes a liquid application means, liquid removal means and carpet brushing means. A reciprocating motion is provided to a pivoted brush by means of a rotary shaft having an oblique crank portion carrying a bearing whose outer race is connected to the brush. The shaft axis, center line of the bearing, and the brush pivot axis all intersect at a common point thus transforming rotary motion of the shaft to an arcuate, reciprocating motion of the brush.
    Type: Grant
    Filed: September 28, 1979
    Date of Patent: June 16, 1981
    Assignee: Wetrok, Inc.
    Inventors: Adolf Notta, Ian A. Scovell
  • Patent number: 4156952
    Abstract: A self contained compact carpet soil extractor includes a vacuum tube for singularly supporting a vacuum head, nozzles through which the cleaning solution is dispensed, a pivotally mounted powered brush and motor means for driving the brush; additionally, the source of vacuum, a supply of cleaning solution under pressure and a waste tank are directly or indirectly suspended from the vacuum tube. One variant includes means for supporting a quantity of the cleaning solution upon the vacuum tube and a further variant relies upon external sources to provide vacuum and cleaning solution. Support upon the carpet for the extractor is provided by the mouth of the vacuum head, the brush and a curved spring skid; the force exerted by the brush and the depth to which the brush extends into the carpet nap is primarily a function of the bristle length with respect to the plane defined by the vacuum head mouth and the skid.
    Type: Grant
    Filed: October 4, 1977
    Date of Patent: June 5, 1979
    Assignee: Chemko Industries, Inc.
    Inventor: Patrick E. Lynch, Jr.
  • Patent number: 4136420
    Abstract: In a carpet soil extracting wand having nozzles for dispensing a cleaning solution and a vacuum head for extracting the mixture of dirt and cleaning solution, a powered brush reciprocally travels through a predetermined arc to scrub the carpet. Bias means are included to allow variation in the pressure exerted by the reciprocating brush upon the pile of the carpet. For manually operated carpet soil extractors, the handle is pivotally positionable for ease of use while the interconnecting conduits to sources of vacuum and cleaning solution are maintained rigid.
    Type: Grant
    Filed: April 15, 1977
    Date of Patent: January 30, 1979
    Assignee: Chemko Industries, Inc.
    Inventors: Gilbert C. Cyphert, Patrick E. Lynch, Jr.
  • Patent number: 4020526
    Abstract: A vacuum cleaner suction nozzle having a brush that is so mounted and arranged as to be capable of moving transversely of the length direction of the nozzle and during part of this movement is elevated from the work surface, while another part of the movement engages the work surface. During the latter movement, the dust and larger dirt particles are raised from the work or rug surface so as to be entrained with the air flow being drawn into the vacuum cleaner.
    Type: Grant
    Filed: December 11, 1975
    Date of Patent: May 3, 1977
    Assignee: Aktiebolaget Electrolux
    Inventor: Erik Karl Gustav Johansson
  • Patent number: 4014067
    Abstract: The invention is concerned with a carpet cleaning implement useful for continuously washing and rinsing a floor fastened carpet in a single operation. The implement includes a head adapted to be rolled along on a carpet upon wheels. The head includes adjacent its bottom a first row of jets for delivering a flow of a solution of a washing composition such as rug shampoo, under pressure, into the carpet. An oscillatory brush is provided near to the first row of jets for vigorously agitating the solution into the carpet. A second row of jets are located near the brush on its other side. The second row of jets serves to deliver a flow of rinse water under pressure into the carpet.
    Type: Grant
    Filed: June 20, 1975
    Date of Patent: March 29, 1977
    Inventor: Charles Ross Bates