Agitator Bearing Or Drive Air Bleed Patents (Class 15/376)
  • Patent number: 11553825
    Abstract: A floor treatment device may include a body portion comprising one or more pumps, one or more spray outlets, and one or more reservoir receptacles configured to receive one or more reservoirs. The one or more pumps are operable to be activated and direct liquids to the spray outlets. The device may include swappable heads, each comprising a body connector configured to mate with a head connector of the body portion. In an embodiment, the head connector may include a sensor system and a controller communicatively connected to the sensor system. When one of swappable heads is connected to the body portion, the sensor system is configured to detect the identity of the swappable heads connected, and the controller is configured to selectively activate, based on the identity of the swappable heads, at least one of the one or more pumps.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: January 17, 2023
    Assignee: SharkNinja Operating LLC
    Inventors: Paul Grandstrand, Alan Weeks, Jason Boyd Thorne, Thomas David Reid Ford, Claudia Joann Richardson
  • Patent number: 8898858
    Abstract: A cleaner head for a vacuum cleaner has a rotating brush bar driven by an air-cooled motor, which is mounted inside the cleaner head with at least a section of the motor being located inside the brush bar. To cool the motor in use, an external casing of the motor is provided a plurality of air-cooling holes comprising at least one air intake and at least one air exhaust. These cooling holes are connected—intake to exhaust—to form one or more air-cooling paths through the inside of the motor. Each air intake is connected to an upstream clean air inlet by a stationary—not rotating—intake duct, and each air exhaust is similarly connected to a downstream clean air outlet by a stationary—not rotating—exhaust duct. This avoids the problems associated with using the rotating brush bar itself as a duct for carrying cooling air to the motor.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: December 2, 2014
    Assignee: Dyson Technology Limited
    Inventors: James Dyson, Christopher Lesniowski, Stephen Benjamin Courtney
  • Patent number: 8776310
    Abstract: A cleaner head for a vacuum cleaner has a dirty-air inlet provided in a main suction chamber of the cleaner head, an outlet duct extending from the main suction chamber for connection to a suction source, and a rotating brush bar housed inside the main suction chamber for agitating a floor surface contacted through the dirty-air inlet. The brush bar is driven by an air-cooled motor housed inside a hollow section of the brush bar, the motor having an air intake and an air exhaust fluidly connected to one another to form an air cooling path through the inside of the motor. The air intake is connected to a clean air inlet on the cleaner head and the air exhaust is fluidly connected to the outlet duct by an exhaust duct which bypasses the main suction chamber.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: July 15, 2014
    Assignee: Dyson Technology Limited
    Inventors: Stuart Lloyd Genn, Christopher Lesniowski, Stephen Benjamin Courtney
  • Patent number: 8567003
    Abstract: A vacuum cleaning appliance includes a vacuum cleaning head having a suction opening, the head having a first state and a second state, a fan unit for drawing an air flow through the suction opening, and a control assembly for controlling the state of the head.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: October 29, 2013
    Assignee: Dyson Technology Limited
    Inventors: David Andrew McLeod, Matthew John Dobson, Spencer James Robert Arthey, Charles Gareth Owen
  • Patent number: 7412750
    Abstract: A suction brush that includes a body in communication with a dust collection apparatus of a vacuum cleaner and having a main suction port formed through a bottom of the body, and a cover for covering the top of the body, the cover having auxiliary suction ports. A pair of floorcloth support plates are rotatably mounted on the bottom of the body, with floorcloths that are detachably attached to the bottom surfaces of the floorcloth support plates, respectively. A floorcloth rotation unit is mounted in the body so as to rotate the pair of floorcloth support plates. The suction brush also includes a first air suction flow path for guiding air, which is introduced through the main suction port, to the rear side of the body, and a second air suction flow path for guiding air, which is introduced through the auxiliary suction ports to the rear side of the body.
    Type: Grant
    Filed: April 26, 2006
    Date of Patent: August 19, 2008
    Assignee: Samsung Gwangju Electronics Co., Ltd.
    Inventor: Jang-keun Oh
  • Patent number: 7257859
    Abstract: A cleaner having a brush includes a suction motor mounted in a main body, and generating a suction force; a filter for collecting dust or filth sucked by the suction force generated at the suction motor; a suction head connected with the filter by a suction pipe, and having an inlet through which dust and filth on a floor are sucked; and a brush rotatably mounted at an inside of the suction head. The inlet is partitioned off into a first section and a second section by a belt cover for protecting a belt winding around the brush, and a flow passage unit is formed at the brush so that air can flow between the first and second sections. Accordingly, air can flow smoothly at a portion, which is blocked by the belt cover, and thus cleaning performance can be improved.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: August 21, 2007
    Assignee: LG Electronics Inc.
    Inventors: Hyeun Sik Nam, Yong Woo Lee, Ho-Seon Rew, Choon Myun Chung
  • Patent number: 6314611
    Abstract: A brush roller assembly for a vacuum cleaner sweeper which includes a rotatable spindle having a longitudinal axis, a first end, a second end and a central portion, a first bladed disk positioned on the first end of the rotatable spindle, the first bladed disk including a central portion which is positioned substantially perpendicular to the longitudinal axis of the rotatable spindle when the first bladed disk is positioned on the first end of the rotatable spindle and at least one fan blade projection outwardly extending from the periphery of the central portion of the first bladed disk, the at least one fan blade projection being oriented to facilitate the movement of outside air from the first end of the rotatable spindle toward the central portion of the rotatable spindle, a first end cap attached to the first end of the rotatable spindle, a second bladed disk positioned on the second end of the rotatable spindle, the second bladed disk including a central portion which is positioned substantially perpend
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: November 13, 2001
    Assignee: Baker McMillen Co.
    Inventor: Carl B. Sauers
  • Patent number: 5249328
    Abstract: In a vacuum cleaner beater brush structure, a beater brush roller is provided with a helical brush strip and a beater strip. A sprocket comprises a support flange and a gear pulley, the gear pulley comprising a carrier having brush tufts and beater bars, a step, a toothed array for engaging with the timing belt, the circular rib for preventing inflow of air containing dirt toward rotating portions of the structure, and an axle for supporting rotation of the structure and integrally formed therewith. A support pulley comprises a circular rib for preventing inflow of air containing dirt toward the rotating portion and an axle adapted for supporting rotation of the structure and integrally formed therewith. A pair of bearing mounts are coupled with the pulleys. The bearing mount comprises a rectangular supporter, a bearing housing portion for receiving an oil-filled sleeve bearing adapted to rotatably support the axle, and openings for allowing air containing dirt to flow therethrough.
    Type: Grant
    Filed: August 27, 1991
    Date of Patent: October 5, 1993
    Assignee: Goldstar Co., Ltd.
    Inventor: Gug J. Shin
  • Patent number: 5050266
    Abstract: A vacuum cleaner adaptor for micro tools consisting of an adaptor body of tubular form having a large diameter section for fitting to a conventional vacuum cleaner vacuum intake port or positive air pressure discharge port, an integral conical transition section and a small diameter section for fitting to a small diameter hose or tube or to the micro tool per se. In one form, longitudinal slots of arcuate configuration are formed within the conical transition section of the adaptor body at circumferentially spaced positions and are selectively closed off by a rotatable conical form shield having similar sized longitudinal slots therein. Radially projecting members on the shield and adaptor body limit rotation of the shield relative to the body between a full slot open position and a slot partially open position by circumferentially offsetting the slots of the adaptor body and shield.
    Type: Grant
    Filed: November 21, 1989
    Date of Patent: September 24, 1991
    Inventor: Norman J. Schneider
  • Patent number: 4222146
    Abstract: A vacuum cleaner with improved carpet-wall edge cleaning ability achieved by bringing a free brush roll cleaning end and its bristle tufts and beater bars into optimum proximity with the edge to be cleaned. Aligned bearing structures within which the brush roll revolves, conventionally disposed to fetter the brush roll ends, are placed so that at least one is positioned on an inner segment of the brush roll, leaving a brush roll cleaning end free, unfettered. The space vacated by the bearing structure so treated allows extension of the free brush roll cleaning end into loose abutment with the general housing material, the bristle tufts and the beater bars comparably extended. These latter members can now function closer to the edge to be cleaned, thereby performing better. Additionally, a cutout in the general housing and adjacent materials allows of further extension of the free brush roll cleaning end into space thus vacated.
    Type: Grant
    Filed: December 29, 1978
    Date of Patent: September 16, 1980
    Inventor: Samuel Hertzberg