With Guard To Inhibit Work Entry Into Nozzle Mouth Patents (Class 15/422)
  • Patent number: 11759070
    Abstract: The present invention discloses a portable vacuum cleaner having a rotatable vacuum assembly. The vacuum cleaner comprises a nozzle assembly including a nozzle cavity, a canister assembly pivotally connected to the nozzle assembly, a dust bag mounted to the canister assembly, a dirty air pathway providing fluid communication between the nozzle cavity and the dust bag and a suction generator for generating a vacuum that draws dirt and debris from the nozzle cavity to the dust bag. The nozzle assembly having a nozzle mount rotatably coupled to the canister assembly to spin about a rotation axis and an angled nozzle rigidly extending from the nozzle mount at an acute angle to the rotation axis. The nozzle assembly is adapted to rotate and could move back and forth for effective collection of dirt and debris.
    Type: Grant
    Filed: August 2, 2021
    Date of Patent: September 19, 2023
    Inventor: Doris Smiley
  • Patent number: 11678779
    Abstract: An accessory tool for a vacuum cleaner includes a conduit and a nozzle. The conduit includes a first end coupled to the vacuum cleaner and a second end opposite the first end. The nozzle is coupled to the second end and includes a first portion with a first set of teeth and a first channel with an opening opposite the first set of teeth. The nozzle also includes a second portion with a second set of teeth and a second channel with an opening opposite the second set of teeth. The first set of teeth interlock with the second set of teeth, and are configured to cause the first portion and the second portion to pivot together relative to the conduit between a closed position and an open position. The nozzle is movable along an outer surface of the conduit from the second end toward the first end.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: June 20, 2023
    Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
    Inventor: Michael A. Verhagen
  • 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: 8418313
    Abstract: A vacuum cleaner comprises a housing adapted to move along a surface to be cleaned and having a suction nozzle at a forward portion thereof, at least one agitator mounted for rotational movement within the suction nozzle and at least one ground-engaging wheel mounted rearwardly of the suction nozzle and a cord guard mounted to the housing in a position rearward of the suction nozzle and adapted to block the ingestion into the suction nozzle of a cord on the surface to be cleaned during rearward movement of the base along the surface.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: April 16, 2013
    Inventors: Jonathan L. Miner, Daniel R. Jaglowski
  • Patent number: 8375510
    Abstract: An attachment for a vacuum cleaning appliance includes a head and a handle connected to the head. The head includes a bristle carrier having a plurality of bristles, and a bristle cover having a plurality of apertures. A conduit is connectable to a vacuum cleaning appliance for conveying an air flow towards the appliance. The head includes a first suction opening of the conduit and the handle includes a second suction opening of the conduit. An actuator effects relative movement between the bristle carrier and the bristle cover from a stowed configuration in which the bristles are retracted relative to the bristle cover to a deployed configuration in which the bristles protrude from the bristle cover through the apertures.
    Type: Grant
    Filed: May 6, 2010
    Date of Patent: February 19, 2013
    Assignee: Dyson Technology Limited
    Inventors: James Dyson, Giles Ashbee, Simon Edward Ireland, Emma Jane Heatley-Adams
  • Patent number: 8375511
    Abstract: An attachment for a vacuum cleaning appliance includes a head and a handle connected to the head. The head includes a bristle carrier having a plurality of bristles, and a bristle cover having a plurality of apertures. A conduit is connectable to a vacuum cleaning appliance for conveying an air flow from the bristle cover towards the appliance. The head includes a suction opening of the conduit and the handle includes an air bleed into the conduit. An actuator effects relative movement between the bristle carrier and the bristle cover from a stowed configuration in which the bristles are retracted relative to the bristle cover to a deployed configuration in which the bristles protrude from the bristle cover through the apertures.
    Type: Grant
    Filed: May 6, 2010
    Date of Patent: February 19, 2013
    Assignee: Dyson Technology Limited
    Inventors: James Dyson, Giles Ashbee, Simon Edward Ireland, Emma Jane Heatley-Adams
  • Patent number: 8353077
    Abstract: A grooming device includes a head and a handle. A first end of the handle is connected to the head, and a second end of the handle is connectable to a vacuum cleaning appliance. The head includes a bristle carrier having a plurality of bristles, and a bristle cover having a plurality of apertures. The device includes an actuator manually operable by a user to effect relative movement between the bristle carrier and the bristle cover from a stowed configuration in which the bristles are retracted relative to the bristle cover to a deployed configuration in which the bristles protrude from the bristle cover through the apertures. The handle includes a conduit for conveying an air flow from the head to the second end of the handle. Resilient members are provided for returning the head to the stowed configuration automatically when the actuator is released by the user.
    Type: Grant
    Filed: May 6, 2010
    Date of Patent: January 15, 2013
    Assignee: Dyson Technology Limited
    Inventors: James Dyson, Giles Ashbee, Simon Edward Ireland, Stephen Benjamin Courtney, Emma Jane Heatley-Adams
  • Patent number: 8347457
    Abstract: An attachment for a vacuum cleaning appliance includes a head having a bristle carrier and a bristle cover. The bristle carrier includes a plurality of bristles and the bristle cover includes a plurality of apertures. The attachment includes a conduit which is connectable to a vacuum cleaning appliance for conveying an air flow from the bristle cover towards the appliance, a handle connected to the head, and an actuator which is depressible towards the handle to effect relative movement between the bristle carrier and the bristle cover between a stowed configuration in which the bristles are retracted relative to the bristle cover and a deployed configuration in which the bristles protrude from the bristle cover through the apertures.
    Type: Grant
    Filed: May 6, 2010
    Date of Patent: January 8, 2013
    Assignee: Dyson Technology Limited
    Inventors: James Dyson, Giles Ashbee, Simon Edward Ireland, Emma Jane Heatley-Adams
  • Patent number: 8171598
    Abstract: An apparatus for cleaning and extracting water from carpet, comprising a vacuum head including a vacuum chamber configured to be connected to a vacuum source and two downward facing elongate vacuum ports extending downwardly from the vacuum chamber and an elongate solution manifold mounted between the vacuum ports and configured to discharge cleaning liquid in a space between the vacuum ports. The vacuum ports are configured to extract waste liquid from carpet when the vacuum head is moved in both a forward motion and a backward motion of the vacuum head. Further, the vacuum head includes elongate glides sealingly fitted in lower openings of the vacuum ports, the glides having suction openings formed therein through which fluids may be drawing into the vacuum ports, and the glides project below the bottom face of the vacuum head.
    Type: Grant
    Filed: July 26, 2010
    Date of Patent: May 8, 2012
    Inventor: Erik Daniel Hiltz
  • Patent number: 8161600
    Abstract: A dust-collecting pipe for a vacuum cleaner can efficiently and easily clean an area such as the top surface of a wardrobe, an area under the wardrobe, or a heat radiator of a refrigerator, which are not easily reachable by the suction port of the dust-collecting pipe. The dust-collecting pipe includes a coupling part detachably coupled to a front end of a telescopic pipe or a front end of a control handle of the vacuum cleaner; an extension integrally extending from the coupling part; and a suction part having a bent portion angled in one direction from one end of the extension and a hollow dust-collecting port formed in a terminal end of the suction part.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: April 24, 2012
    Inventor: Young-Doo Kwon
  • Publication number: 20080276416
    Abstract: A powered unit for performing blower operations or vacuuming operations is provided. The powered unit includes a blower tube, a barrier for preventing unintentional contact with moving parts in the powered unit, and a retention feature. The retention feature is located within the blower tube and the retention feature is configured for securing the barrier within the blower tube. The retention feature is included of an annular groove in the blower tube. The barrier is secured in the blower tube by a snap engagement with the retention feature. The barrier can also be deformed as it is inserted into the blower tube. The barrier then returns to its non-deformed shape when the barrier is secured in the retention feature in the blower tube.
    Type: Application
    Filed: May 8, 2007
    Publication date: November 13, 2008
    Applicant: HUSQVARNA OUTDOOR PRODUCTS INC.
    Inventors: Jeffery L. Osterchill, John R. Coffey
  • Patent number: 7293327
    Abstract: The invention relates a device for suction of waste and similar, in a machine for cleaning roads and similar comprising a suction pipe (2), an inlet aperture (3) of the suction pipe (2), and a sweeper device (4) of the pipe (2) positioned near the inlet aperture (3) and suitable to free the suction pipe (2) of any impediments.
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: November 13, 2007
    Assignee: Dulevo International, S.p.A.
    Inventor: Fabrizio Tagliaferri
  • Patent number: 7143468
    Abstract: The present invention is a novel design for a recirculating vacuum cleaner nozzle that addresses the problem of pluming by venting some internal fluid to the atmosphere. The nozzle guides fluid flow around an inner shroud within a housing. The distal end of the nozzle is exposed to the atmosphere such that air passes rapidly across its face from the outside edges to the inner duct. This rapidly moving airflow picks up dust and debris and carries it to the interior of the inner duct. Dusty air within this duct is preferably cleaned with a separator. After the fluid is cleaned, it may be sent back to the nozzle to pick up more debris. Use of the nozzle of the present invention in conjunction with a separator allows sufficient air to enter the nozzle to prevent pluming and allows the same amount of air to exit via shaped vent holes while retaining dust in the system.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: December 5, 2006
    Inventors: Lewis Illingworth, David Reinfeld
  • Patent number: 6983511
    Abstract: A multipurpose tool for cleaning machines, having a body that is interchangeably associable with a cleaning machine provided with an electric motor; the body is movable on wheels and a front advancement part thereof is arranged transversely to a main direction of motion so as to form a housing that is open downward and accommodates a bristled roller that is moved, by virtue of transmission elements, by an electric motor accommodated within the body; the body is articulated to a coupling element that is suitable to provide a detachable connection to the machine with a dirt suction duct. The tool further includes a pair of interchangeable covers that are selectively detachably associable below the housing at an open region where the roller is located, each of the covers having at least one suction slot and elements for closing the region to the rear of the roller between the housing and the floor.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: January 10, 2006
    Assignee: Lindhaus S.R.L.
    Inventor: Michele Massaro
  • Patent number: 6966099
    Abstract: The present invention refers to a duster nozzle for vacuum cleaners, comprising a tube (1) carrying a duster (3a) at the air flow entrance end. The novelty of the invention basically consists in that the duster (3a) has duster elements (3) which decrease in length, at least partially, along the direction that is transverse to the air flow (4) at the entrance end of the nozzle.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: November 22, 2005
    Inventor: Hans Müller
  • Patent number: 6622341
    Abstract: A position shifting plate for an air blowing device includes a casing having an inlet defined in an underside of the casing and an outlet defined in an end of the casing. An annular neck extends from the underside of the casing and encloses the inlet. A gap is defined between the underside of the casing and the neck. A guide member extends from the underside of the casing. A shifting plate has a grated portion and a hole. A flange extends from the shifting plate and two rails extend inward from the flange so as to be movably inserted in the gap. The shifting plate movably contacts the guide member to shift the hole or the grated portion to cover the inlet of the casing.
    Type: Grant
    Filed: May 14, 2001
    Date of Patent: September 23, 2003
    Assignee: Jenn Feng Industrial Co., Ltd.
    Inventor: Jung-Chang Jong
  • Patent number: 6553599
    Abstract: A low-profile and highly-maneuverable vacuum cleaner having improved functionality including, alone or in combination, a headlight, a sidelight, anti-ingestion bars, side brushes, a squeegee, and a scent cartridge for use in cleaning floors, floor coverings, carpets, upholstery, and other surfaces. One embodiment includes a tortuous air flow path created by baffles that divert air flow. The tortuous path creates quieter air flow through the vacuum housing. The tortuous air flow arrangement is for cooling the internal parts of a vacuum cleaner. Another embodiment includes an indicator light assembly for the vacuum cleaner visually providing the user with the vacuum's current operation status. In another embodiment, the rear wheels are recessed within the head housing and slightly offset rearwardly of the rear wall of the head housing to provide enhanced maneuverability.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: April 29, 2003
    Assignee: Oreck Holdings, LLC
    Inventors: Chris M. Paterson, Javier Verdura, Owen T. Bourgeois, Jeffrey A. Millard, Mel Teitzman, Paul A. Moshenrose
  • Patent number: 6442790
    Abstract: A blower/vacuum having an air inlet cover and a blower tube, both of which attach to a blower housing for operation in a blower mode. The air inlet cover is preferably able to removably attach to the blower housing and the blower tube. Blower/vacuums of the present invention may generally prohibit operation unless both the blower tube and the air inlet cover are first installed. The blower/vacuum is further adapted to operate in a vacuum mode by removing the air inlet cover and blower tube and replacing the same with a vacuum tube assembly and a vacuum collection container, respectively.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: September 3, 2002
    Assignee: The Toro Company
    Inventors: Steven J. Svoboda, Chadwick A. Shaffer
  • Patent number: 6152151
    Abstract: The flooding device is disclosed coupled to a suction pump truck by flexible conduit. The deflooding device includes a suction chamber having a downward facing opening therein and a compression element, namely a roller, protruding therefrom. The roller has openings or other structure to allow water to exist beneath the roller while the roller is compressing the carpet nap. A propulsion system including a motor drive system attached to the roller allows the unit to be self-propelled across the carpet.
    Type: Grant
    Filed: July 20, 1999
    Date of Patent: November 28, 2000
    Assignee: Bolden's Manufacturing, Inc.
    Inventors: Kurt E. Bolden, Dave Sutton, Sr.
  • Patent number: 6044521
    Abstract: A vacuum attachment with disposable sleeve is provided including a vacuum mounting assembly. Further included is a disposable sleeve removably secured over an end of the mounting assembly. The sleeve has a plurality of apertures formed therein.
    Type: Grant
    Filed: August 22, 1997
    Date of Patent: April 4, 2000
    Inventor: Diana Sebek
  • Patent number: 5829091
    Abstract: A new Automobile Central Vacuum Cleaning System for providing the opportunity to vacuum an automobile anytime or anywhere. The inventive device includes a vacuum generating unit, a remote vacuum port, and a vacuum cleaner hose. A remote vacuum line is located within the panels of an automobile and provides connection between a vacuum intake port of the vacuum generating unit and a vacuum hose attachment end of the remote vacuum port. The remote vacuum port is located strategically and conveniently within the passenger compartment of the automobile. The vacuum generating unit includes a vacuum motor and a debris collection unit. Power to the vacuum generating unit may be generated by the battery or engine of the automobile and may be controlled by a remote power switch which is installed in a convenient location such as a dash hoard, a control/instrumentation panel, or console of the automobile.
    Type: Grant
    Filed: September 10, 1996
    Date of Patent: November 3, 1998
    Inventors: Curt R. Ingram, Donna E. Ingram
  • Patent number: 5791012
    Abstract: The present invention discloses a safety cage for high suction industrial vacuums. The cage is fabricated from an open perimeter structure having an open end and intake end. Proximate the intake end there is an end guard which serves to prevent large objects from being sucked into the opened end of the cage. Flanges are provided at the open end to engage the intake of the hose. The perimeter structure is created from the cage rings and cage supports which form a rigid perimeter structure which keeps the hose from collapsing. A end guard is provided on the side of the perimeter structure to allow easy manipulation of the cage. Holes in the perimeter structure provide for receiving set screws which engage the side wall of the vacuum hose.
    Type: Grant
    Filed: June 11, 1996
    Date of Patent: August 11, 1998
    Inventor: Michael Ray Carver, Sr.
  • Patent number: 5729863
    Abstract: A spray mist collector for use with a spray gun, such collector connected to a vacuum source to draw the spray mist surrounding the spray of paint or other sprayable material emitted from the nozzle of the spray gun to the intake apertures of the collector where the particles suspended in the spray mist are trapped by a filter. The spray mist collector has a connection mechanism for connection to the spray gun whereby its expanded intake apertures are automatically pointed at the spray mist surrounding the spray of paint as the painter directs it on to the work object. The filters are replaceable when they become filled, and an adjustable signal mechanism may also be included to indicate when the filters should be changed. The rearward duct portion of the spray mist collector is connected to an elongated flexible air hose or air conduit which leads to a vacuum source.
    Type: Grant
    Filed: January 2, 1996
    Date of Patent: March 24, 1998
    Inventor: Thomas S. Papesh
  • Patent number: 5692263
    Abstract: A vacuum tool for delicate dusting of plants and similar delicate fabrics has an inner and outer shell. The inner shell has a distribution of holes providing even volume of air flow per unit length of inner and outer shells. The outer shell has an even distribution of holes which provide even volume of air flow and air velocity per hole and also even suction over the outer shell. The outer holes are sunk within grooves so that fabric, leaves and petals and the like are not sucked against the holes and torn, ripped or frayed. The grooves also provide even suction over the surface of the outer shell.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: December 2, 1997
    Inventor: R. Wayne Sorenson
  • Patent number: 5481781
    Abstract: A vacuum cleaner is provided with a nozzle having front and rear rollers that extend for, essentially, the width of the nozzle from side to side. Ideally, these rollers are mounted at least partly within the vacuumized envelope formed by the nozzle.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: January 9, 1996
    Assignee: The Hoover Company
    Inventor: Vincent L. Weber
  • Patent number: 5457846
    Abstract: A portable power blower includes a body and a handle mounted on a top of the body. The body includes a prime mover, a fan volute chamber, a fan housed in the fan volute chamber and attached to one end of an output shaft of the prime mover, and an air inlet of the fan volute chamber formed in front of the fan. A main guard member is so mounted as to cover one side surface of the fan volute chamber on which the air inlet is formed, and a gap for radially introducing external air into the air inlet is formed between a rear side of the main guard member and the one side surface. The gap is in open communication with atmosphere at a top portion of the body. A bottom guard member connected to the main guard member and the fan volute chamber covers bottom portions of the fan volute chamber and the prime mover, and a sub-guard member connected to the bottom guard member and the fan volute chamber covers sides of the prime mover which oppose the main guard member and the bottom guard member, respectively.
    Type: Grant
    Filed: January 3, 1994
    Date of Patent: October 17, 1995
    Assignee: Kioritz Corporation
    Inventors: Michiyasu Kuwano, Yoshikazu Iida
  • Patent number: 5267372
    Abstract: An apparatus is directed to permit individuals to remove debris and the like entrapped within an individual's hair, with the apparatus having an elongated truncated conical body flaring outwardly from a handle portion obliquely relative to the handle portion, and the body having an entrance opening formed with an entrance screen to prevent air from being directed into the vacuum. A removable filter is positioned between the vacuum motor and a rear distal end of the body. A modification of the invention includes an encircling clamp mounted about the body, with the body formed of a shape retentent material permitting deformation of the entrance opening to accommodate various portions of an individual's head and geometric variations thereof.
    Type: Grant
    Filed: April 23, 1992
    Date of Patent: December 7, 1993
    Inventor: Gale M. Jones
  • Patent number: 5263224
    Abstract: A portable vacuum cleaner attachment, that can be attached to the end of a vacuum hose to remove and separate fluid, so that the fluid does not enter the vacuum unit. The attachment has a housing with an outlet that can be coupled to the vacuum hose, and an inlet that can engage a working surface to remove the fluid with an airstream created by the vacuum unit. Attached to the housing is a tank that stores the fluid as it is removed from the working surface. Within the tank is a first passage that provides communication between the housing inlet and the tank, and a second passage that provides communication from the tank to the housing outlet. Located in front of the first passage is a wall that deflects the fluid down into the tank, while the air flows into the second passage.
    Type: Grant
    Filed: September 26, 1991
    Date of Patent: November 23, 1993
    Inventor: Gary Lovelady
  • Patent number: 5263860
    Abstract: A connector (12' or 12") is attached to the end of a dental vacuum hose (20) for enabling a valved handle (24) to be attached to the connector and thus coupled to the vacuum hose. A saliva ejector or a high-volume ejector can then be attached to the distal end of the valved handle. The end of the connector is closed with a crown cap (22) to prevent a vacuum rushing sound and keep the connector sanitary when the valved handle is not attached. The cap has a top spike or finial (22F) which enables the cap to be pried off the connector easily by pushing the lumen at the bottom of the valved handle over the finial and tilting the handle. The cap hangs by a tether (22T) after it is pried off. In lieu of a cap, a flip top (12"F) which is hinged to the top opening of the connector can be used; one side of the flip top can be pried with the bottom of the valved handle.
    Type: Grant
    Filed: July 27, 1992
    Date of Patent: November 23, 1993
    Inventors: James Shen, Rily Young
  • Patent number: 5146868
    Abstract: A self contained recirculating powdering and vacuuming assembly and the airflow discharge manifold therfor. The vacuum assembly includes a blower operably connected within a housing having a low and high pressure region. A powder tray is mounted beneath a first outlet at the bottom of the low pressure region and is structured to hold a quantity of powder for controlled depositing onto paper stock having a wet ink coating on preselected areas of the paper stock. This first outlet sealably transfers powder collected in the low pressure region back into the powder tray, which powder is transported by conveyor beneath the powder tray. A vacuum passage extends downward from a low pressure region inlet to a powder pickup slot positioned adjacent to the area where the powder is deposited onto the paper stock. Pressurized air is directed toward the pickup slot from either side thereof by the airflow discharge manifold which receives air from the high pressure region outlet.
    Type: Grant
    Filed: October 23, 1990
    Date of Patent: September 15, 1992
    Inventor: Cecil K. Kirk
  • Patent number: 5033159
    Abstract: This invention provides a process for recovery of oil from non-oleophilic areas and surfaces such as rocks, beaches and shorelines by the use of hand-held vacuum nozzles connected to flexible tubing conveying the recovered oil to a first vessel from which the oil is transferred under pressure to a second vessel serving as a storage and transfer vessel to a third vessel which takes the oil to a recovery facility.
    Type: Grant
    Filed: September 13, 1989
    Date of Patent: July 23, 1991
    Inventors: Paul Whilden, Jr., Paul Whilden, III
  • Patent number: 4953255
    Abstract: A hot ash vacuum is provided with a canister having an outer housing and a concentric inner housing; a cap for the canister has a vacuum motor extending into the inner housing; a flexible hose is coupled through the cap and communicates with the inner housing at one end and a nozzle at the other end; and a dust collector communicating through the cap with said inner housing for collecting hot ash dust therefrom.
    Type: Grant
    Filed: March 16, 1989
    Date of Patent: September 4, 1990
    Inventor: Overton S. Jenkins
  • Patent number: 4918781
    Abstract: A hand vacuum cleaner is provided comprising a lightweight motor housing containing a revolving brush. A bag assembly is selectively separable from the housing and is sealable to the housing with an elastomeric retaining ring including a sealing and retaining bead for reception in a recessed slot area of a housing bag attachment collar. A fan is mounted to the motor on a motor shaft locking surface including a wall portion tapering towards the fan. The shaft is in locking cooperation with a mating fan bore locking surface including a wall portion tapered for close reception of the motor shaft locking surface. A shaft extension is threadedly received on the motor shaft and is urged into engagement against the fan by resistance of a revolving brush operated by a belt received on the shaft extension which continually tightens the shaft extension to the motor shaft and fixes the fan to the motor shaft.
    Type: Grant
    Filed: March 31, 1989
    Date of Patent: April 24, 1990
    Assignee: Royal Appliance Mfg. Co.
    Inventors: John F. Sovis, Robert M. Smith, George H. Bramball
  • Patent number: 4756668
    Abstract: The invention is directed to a protective cover for the air intake opening in a blower-vacuum apparatus. The cover contains opening defined in the cover having a large cross sectional area relative to the area of the air intake opening. The openings in the cover are in the vertical wall of the cover to force the air to enter the apparatus radially.
    Type: Grant
    Filed: July 23, 1987
    Date of Patent: July 12, 1988
    Assignee: Textron Inc.
    Inventors: James Gassen, John E. Reed
  • Patent number: 4587687
    Abstract: This invention relates to a mounting piece for the suction hose of a central vacuum cleaning system. In order to prevent objects that could possibly clog the suction piping from getting into the piping, there is on the inner wall (2) of the mounting piece (1) at least one rib (3) pointing inwards from the inner wall which prevents objects that would clog the suction piping (5) from getting into the suction piping (5). The surface of the rib (3) or ribs (3) that meet the flow are preferably inclined towards the central axis of the mounting piece.
    Type: Grant
    Filed: November 2, 1984
    Date of Patent: May 13, 1986
    Assignee: Allaway Oy
    Inventors: Alpo Ikonen, Raimo Lehtolahti, Reino Mustalampi
  • Patent number: 4476607
    Abstract: A lightweight portable vacuum cleaner and attachment nozzle are disclosed which may be readily carried by an operator to vacuum both normally accessible and normally inaccessible areas. The vacuum cleaner comprises an elbow-shaped plastic housing which encloses a filter bag and blower motor. The vacuum is carried under the arm of the operator supported from a strap that goes over the operator's shoulder. A deodorant chamber is mounted to the exhaust screen of the housing, so that exhaust from the blower motor can be used to distribute scented odor over the surface that is being cleaned. In addition, footings are mounted adjacent to the exhaust screen so that proper ventilation is assured for the blower motor. A flexible hose with suction tube is frictionally fitted into an aperture in the vacuum cleaner and thereby delivers suction to the area at which they are directed. A specific attachment nozzle is coupled to a 45.degree. coupling which is coupled to the suction tube.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: October 16, 1984
    Inventor: David Ross
  • Patent number: 4355435
    Abstract: The present invention provides surface maintenance equipment, such as for sweeping lawns, which includes mechanism for preventing clogging of ducts leading to the fan and/or the hopper.
    Type: Grant
    Filed: September 12, 1980
    Date of Patent: October 26, 1982
    Assignee: Tennant Company
    Inventors: Paul W. Kimzey, Daniel J. Super
  • Patent number: 4285092
    Abstract: A bottom plate for a carpet power cleaner has a body part, detents provided on the body part and detachably engageable in a housing of a carpet power cleaner. The detents may be of one piece with the body part. The detents may extend through cutouts provided in a lower wall of the housing so as to engage with the latter. The detents may have bent end sections which are engageable with detent edges located downstream of the cutouts of the housing. The body part may have a rear edge provided with inwardly extending flanging.
    Type: Grant
    Filed: October 17, 1979
    Date of Patent: August 25, 1981
    Assignee: Vorwerk & Co. Interholding GmbH
    Inventor: Hans Schmitz
  • Patent number: 4279057
    Abstract: Spots and stains are completely removed from wall-to-wall carpeting, upholstery fabric, and the like, by using a generally flat, hollow tool, which is inserted beneath the carpet or fabric without completely removing the latter from the floor or piece of furniture which it covers. The flat tool has a plurality of spaced perforations in its upper wall; and its interior is releasably connected by a tubular extension member to a vacuum supply which creates a localized vacuum immediately beneath the portion of the carpet that is to be cleaned. A liquid cleaning medium or solvent is then applied to the spot or stain which is located above the tool; and after it passes through the carpet or fabric it is drawn into the tool and through the extension member to the vacuum supply.
    Type: Grant
    Filed: March 3, 1980
    Date of Patent: July 21, 1981
    Inventor: Edward A. Restivo
  • Patent number: 4265621
    Abstract: A removable protective tip for placement over the outer end of a dental aspirator. The tip includes a cylindrical sleeve that frictionally fits over the walls of the aspirator end, and an integral open mesh screen extending across one end of the sleeve in a plane complementary to the outer edge of the aspirator. Side vents are provided immediately adjacent the screen. The tip prevents larger objects from being drawn into the aspirator assembly and also prevents the aspirator from grasping soft tissue in the mouth.
    Type: Grant
    Filed: October 19, 1979
    Date of Patent: May 5, 1981
    Inventor: Kenneth E. McVey
  • Patent number: 4083077
    Abstract: A hand tool is constructed for detachable connection to a fluid cleaning machine such as a steam cleaning unit. A hollow head has convexly rounded front and rear edges to promote smooth back and forth sliding motion over fabric. Forward and rearward regions of the head constitute a suction chamber and a spray chamber respectively. A fluid solution line is surrounded and protected by a flexible suction hose that is releasably coupled to a neck of the hand tool. A flow control interconnects the fluid solution line and a spray nozzle in the spray chamber. Baffles positioned across a lower opening of the suction chamber reduce wrinkling and ridging tendencies of the fabric as it is being cleaned.
    Type: Grant
    Filed: December 15, 1975
    Date of Patent: April 11, 1978
    Inventors: Arlen M. Knight, William Hachtmann
  • Patent number: 4083134
    Abstract: A trailing dredger comprises a vessel, a pump, a suction pipe connected with said pump and a suction head connected with said suction pipe and having a suction chamber having at least one suction opening and communicating with the suction pipe, said suction head being adapted to roll along a soil beneath the water by means of a hollow roller being freely rotatable about an axis transverse of the direction of movement of the dredger and being journalled on the suction head, said roller being provided with a contact surface. The surface of the roller is provided with openings which concentrate the suction force and present an ever-changing contact pattern with the soil which correspondingly provides an ever-changing flow pattern to erode and pick up the soil.
    Type: Grant
    Filed: November 10, 1976
    Date of Patent: April 11, 1978
    Assignees: Anglo Dutch Dredging Co. Ltd., Amsterdamse Ballast Bagger en Grond
    Inventor: Klaas Oterdoom
  • Patent number: 4045840
    Abstract: A vacuum cleaner nozzle tool that is connected to a source of negative pressure and which functions to clean deep pile carpet or shag rugs in an efficient manner and which at the same time raises the pile of the rug or carpet in order to improve the appearance thereof. To achieve this objective the nozzle is provided with slide means of a particular configuration.
    Type: Grant
    Filed: July 28, 1975
    Date of Patent: September 6, 1977
    Assignee: Aktiebolaget Electrolux
    Inventor: Erik Karl Gustav Johansson
  • Patent number: 4042999
    Abstract: A miniature vacuum cleaner device operated by self-contained dry cells or rechargeable equivalents, and capable of applying light vacuum or pressure through specialized nozzles for such functions as cleaning phonograph records, optical slides, postage stamps and small articles which may be easily disturbed from position upon the occurrence of a substantial draft. The casing element includes means for storing a most commonly used nozzle, and conveniently disassembles for replacement of battery cells and filters. A flexible hose connectable to an exhaust end of the device permits the application of simultaneous pressure and suction to a surface area being cleaned whereby the article bearing the surface does not tend to lift.
    Type: Grant
    Filed: January 17, 1975
    Date of Patent: August 23, 1977
    Inventor: Demetrios Triantafyllou
  • Patent number: 3972089
    Abstract: A brake drum and shoe assembly duster system in which a cylindrical container having one open end and one closed end is provided with a vacuum fitting at an aperture centrally located in the closed end and a plurality of high pressure air fittings along the inside walls spaced 180.degree. apart so that a quarter turn in each direction from insertion over brake drum and/or shoe assembly causes impingement of compressed air over the entire surface of the brake drum itself. The brake dust disloged by the high pressure air is then removed through the vacuum fitting in the center of the bottom of the cylindrical container. Adapter rings are provided for utilization of the container of the system with different sized brake drums.
    Type: Grant
    Filed: November 6, 1974
    Date of Patent: August 3, 1976
    Inventor: Calvin G. Parks