Patents by Inventor Wing-kin Hui

Wing-kin Hui has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11668111
    Abstract: A pool cleaning vehicle having a suction mouth placed at the belly of a housing. The pool cleaner is placed on two elongate rollers which allow the pool cleaner to move in opposite directions. The suction mouth is positioned between the two elongate rollers to reduce angular displacement when a roller wheel mounts a protrusion on uneven pool bed. A scrubber extends from within the mouth to sweep across the pool bed. The scrubber is pivoted to be able to swing when the pool cleaner changes direction.
    Type: Grant
    Filed: October 25, 2021
    Date of Patent: June 6, 2023
    Assignee: National Wise Limited
    Inventors: Martin Wing-Kin Hui, Wing-Tak Hui, Andrew Matthew Hui
  • Patent number: 11441326
    Abstract: A pool cleaning vehicle having a suction mouth placed at the belly of a housing. The pool cleaner is placed on two elongate rollers which allow the pool cleaner to move in opposite directions. The suction mouth is positioned between the two elongate rollers to reduce angular displacement when a roller wheel mounts a protrusion on uneven pool bed. A scrubber extends from within the mouth to sweep across the pool bed. The scrubber is pivoted to be able to swing when the pool cleaner changes direction.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: September 13, 2022
    Assignee: Upward Sales Limited
    Inventors: Martin Wing-Kin Hui, Wing-Tak Hui, Andrew Matthew Hui
  • Publication number: 20220042338
    Abstract: A pool cleaning vehicle having a suction mouth placed at the belly of a housing. The pool cleaner is placed on two elongate rollers which allow the pool cleaner to move in opposite directions. The suction mouth is positioned between the two elongate rollers to reduce angular displacement when a roller wheel mounts a protrusion on uneven pool bed. A scrubber extends from within the mouth to sweep across the pool bed. The scrubber is pivoted to be able to swing when the pool cleaner changes direction.
    Type: Application
    Filed: October 25, 2021
    Publication date: February 10, 2022
    Applicant: NATIONAL WISE LIMITED
    Inventors: MARTIN WING-KIN HUI, WING-TAK HUI, ANDREW MATTHEW HUI
  • Patent number: 11199016
    Abstract: A swimming pool cleaner has a housing. The housing has an intake formed on a bottom section thereof. The intake runs along a width of the bottom section of the housing. A first rolling flap is proximate the intake. The first rolling flap is approximately equal in length to a length of the intake. The first rolling flap runs along the width of the bottom section and is hingly coupled to the bottom section of the housing along a front edge of the intake. The first rolling flap follows a contour of a surface of a swimming pool upon which the swimming pool cleaner is traveling upon to control a water flow into the intake.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: December 14, 2021
    Assignee: FOREVER VANTURE TECHNOLOGY LIMITED
    Inventor: Wing-Kin Hui
  • Publication number: 20210079679
    Abstract: A pool cleaning vehicle having a suction mouth placed at the belly of a housing. The pool cleaner is placed on two elongate rollers which allow the pool cleaner to move in opposite directions. The suction mouth is positioned between the two elongate rollers to reduce angular displacement when a roller wheel mounts a protrusion on uneven pool bed. A scrubber extends from within the mouth to sweep across the pool bed. The scrubber is pivoted to be able to swing when the pool cleaner changes direction.
    Type: Application
    Filed: September 12, 2019
    Publication date: March 18, 2021
    Applicant: NATIONAL WISE LIMITED
    Inventors: MARTIN WING-KIN HUI, WING-TAK HUI, ANDREW MATTHEW HUI
  • Patent number: 10876316
    Abstract: A pool cleaner for cleaning a swimming pool has a vacuum head having an intake nozzle drawing in fluid. A body chamber is coupled to the intake nozzle and has an intake end and a discharge end. A pump is housed within the body chamber drawing fluid from the intake end and expelling the fluid through the discharge end. A filter is placed within the body chamber filtering out particulates from the fluid drawn into the body chamber. A battery pack is located remote from the pool cleaner and wearable by a user of the pool cleaner. A power cord couples the battery pack to the pump. The power cord being electrically connected to the pump by a waterproof connector.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: December 29, 2020
    Inventors: Wing-Tak Hui, Andrew Matthew Hui, Martin Wing-Kin Hui
  • Publication number: 20190383050
    Abstract: A swimming pool cleaner has a housing. The housing has an intake formed on a bottom section thereof. The intake runs along a width of the bottom section of the housing. A first rolling flap is proximate the intake. The first rolling flap is approximately equal in length to a length of the intake. The first rolling flap runs along the width of the bottom section and is hingly coupled to the bottom section of the housing along a front edge of the intake. The first rolling flap follows a contour of a surface of a swimming pool upon which the swimming pool cleaner is traveling upon to control a water flow into the intake.
    Type: Application
    Filed: August 28, 2019
    Publication date: December 19, 2019
    Inventor: Wing-Kin HUI
  • Patent number: 10455994
    Abstract: The present invention is adapted to the technical field of toilet, and provides a foldable portable toilet device, comprising: a seat plate is a plurality of folding parts folded left and right and/or front and back, a folding mechanism provided between the adjacent folding parts; and a groove provided at a bottom of the seat plate and matched with an outer shape of the seat plate of the toilet; a handle provided on a side of the seat plate and provided with a first button through which the folding mechanism is controlled to retract; a plurality of stabilizing means provided within the groove of the seat plate; the stabilizing means locks the portable toilet device onto the seat plate of the toilet. In view of this, the foldable portable toilet device provided by the present invention is portable as well as safe and reliable in use.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: October 29, 2019
    Assignee: RIVER LIMITED
    Inventors: Kam Ming Lui, Wing Kin Hui
  • Patent number: 10435903
    Abstract: A swimming pool cleaner has a housing. The housing has an intake formed on a bottom section thereof. The intake runs along a width of the bottom section of the housing. A first rolling flap is proximate the intake. The first rolling flap is approximately equal in length to a length of the intake. The first rolling flap runs along the width of the bottom section and is hingly coupled to the bottom section of the housing along a front edge of the intake. The first rolling flap follows a contour of a surface of a swimming pool upon which the swimming pool cleaner is traveling upon to control a water flow into the intake.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: October 8, 2019
    Assignee: FOREVER VANTURE TECHNOLOGY LIMITED
    Inventor: Wing-Kin Hui
  • Patent number: 10221584
    Abstract: An automated swimming pool cleaner has a housing having an inlet formed on a bottom surface thereof. A drive mechanism is located within the housing. A first rolling mechanism is coupled to a bottom section of the housing. A second rolling mechanism is coupled to the bottom section of the housing. A third rolling mechanism is coupled to the bottom section of the housing between the first rolling mechanism and the second rolling mechanism. The third rolling mechanism extends lower from the housing than the first rolling mechanism and the second rolling mechanism allowing the automated swimming pool cleaner to pivot about the third rolling mechanism. The drive mechanism rotates at least one of the first rolling mechanism, the second rolling mechanism, or the third rolling mechanism.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: March 5, 2019
    Assignee: COMPUROBOT TECHNOLOGY COMPANY
    Inventors: Wing-Tak Hui, Andrew Matthew Hui, Martin Wing-Kin Hui
  • Publication number: 20180310784
    Abstract: The present invention is adapted to the technical field of toilet, and provides a foldable portable toilet device, comprising: a seat plate is a plurality of folding parts folded left and right and/or front and back, a folding mechanism provided between the adjacent folding parts; and a groove provided at a bottom of the seat plate and matched with an outer shape of the seat plate of the toilet; a handle provided on a side of the seat plate and provided with a first button through which the folding mechanism is controlled to retract; a plurality of stabilizing means provided within the groove of the seat plate; the stabilizing means locks the portable toilet device onto the seat plate of the toilet. In view of this, the foldable portable toilet device provided by the present invention is portable as well as safe and reliable in use.
    Type: Application
    Filed: March 1, 2018
    Publication date: November 1, 2018
    Inventors: KAM MING LUI, WING KIN HUI
  • Publication number: 20180298628
    Abstract: A swimming pool cleaner has a housing. The housing has an intake formed on a bottom section thereof. The intake runs along a width of the bottom section of the housing. A first rolling flap is proximate the intake. The first rolling flap is approximately equal in length to a length of the intake. The first rolling flap runs along the width of the bottom section and is hingly coupled to the bottom section of the housing along a front edge of the intake. The first rolling flap follows a contour of a surface of a swimming pool upon which the swimming pool cleaner is traveling upon to control a water flow into the intake.
    Type: Application
    Filed: April 13, 2017
    Publication date: October 18, 2018
    Inventor: WING-KIN HUI
  • Patent number: 10079504
    Abstract: A floating power supply for a body of water has a flotation unit. A power supply circuit housed within the flotation unit, wherein the power supply circuit provides power to a device within the body of water while untethered to a power source external of the body of water.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: September 18, 2018
    Assignee: Compurobot Technology Company
    Inventor: Wing-Kin Hui
  • Patent number: 10053883
    Abstract: A cleaning structure is attachable to a submersible pool cleaning vehicle (PCV). In one exemplary embodiment the PCV has an endless loop track and a chassis therefore. The cleaning structure attaches to the chassis and acts as a cap covering the drive wheels and track. The cleaning structure includes a base and bristles extending outwardly therefrom. The bristles define fingers. In one embodiment, the fingers are of a uniform length. In another embodiment, the fingers are of a graduated length. Others embodiments include the fingers being distributed on the base in a random pattern.
    Type: Grant
    Filed: November 3, 2013
    Date of Patent: August 21, 2018
    Assignee: Compurobot Technology Company
    Inventors: Wing-Kin Hui, Wing-Tak Hui
  • Patent number: 9982452
    Abstract: A pool cleaner having a coarse filter and a fine filter. The coarse filter removes large pieces of debris. The fine filter removes fine particles from the water. In an embodiment, the fine filter is a filter bag made from a cloth material. In an embodiment, the coarse filter is a mesh grating with small holes. In an embodiment, the fine filter is supported by a rigid mesh placed downstream from the coarse filter.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: May 29, 2018
    Assignee: COMPUROBOT TECHNOLOGY COMPANY
    Inventors: Wing-Tak Hui, Andrew Matthew Hui, Wing-Kin Hui
  • Patent number: 9951940
    Abstract: A floating illumination device for a water feature has a housing having a sub-housing extending down from a bottom section of the housing. A lighting circuit is held by the sub-housing. A plurality of illuminating elements of the lighting circuit is attached to an outer perimeter of the sub-housing. A cover is positioned over the sub-housing forming a watertight seal.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: April 24, 2018
    Assignee: COMPUROBOT TECHNOLOGY COMPANY
    Inventors: Wing-Tak Hui, Andrew Matthew Hui, Martin Wing-Kin Hui
  • Publication number: 20180041068
    Abstract: A floating power supply for a body of water has a flotation unit. A power supply circuit housed within the flotation unit, wherein the power supply circuit provides power to a device within the body of water while untethered to a power source external of the body of water.
    Type: Application
    Filed: August 2, 2016
    Publication date: February 8, 2018
    Inventor: WING-KIN HUI
  • Patent number: 9856669
    Abstract: A pool cleaner having an intake opening at the bottom of the body and two rollers on either side of the intake opening on which the pool cleaner rests and traverse the pool floor. In an embodiment, the rollers define a cleaning path with maximum water flow through the intake opening into the pool cleaner caused by hydraulic forces as a result of at least one pump being turned on. In an embodiment, pool cleaner is unstable when moving on the rollers. In an embodiment, wheels are placed at corners of the pool cleaner and raised above the floor, allowing a rocking motion and easy turns of pool cleaner.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: January 2, 2018
    Assignee: Compurobot Technology Company
    Inventors: Wing-Tak Hui, Andrew Matthew Hui, Wing-Kin Hui
  • Patent number: 9809990
    Abstract: An automated swimming pool cleaner has a housing having an inlet formed on a bottom surface thereof. At least one slot is formed in a bottom side surface of the housing. A flap is provided and is in fluid communication with the slot. A wheel is coupled to the flap. The wheel keeps a bottom surface of the flap a minimum distance above a floor/wall of a swimming pool.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: November 7, 2017
    Assignee: COMPUROBOT TECHNOLOGY COMPANY
    Inventor: Wing-Kin Hui
  • Publication number: 20170260766
    Abstract: A pool cleaner for cleaning a swimming pool has a vacuum head having an intake nozzle drawing in fluid. A body chamber is coupled to the intake nozzle and has an intake end and a discharge end. A pump is housed within the body chamber drawing fluid from the intake end and expelling the fluid through the discharge end. A filter is placed within the body chamber filtering out particulates from the fluid drawn into the body chamber. A battery pack is located remote from the pool cleaner and wearable by a user of the pool cleaner. A power cord couples the battery pack to the pump. The power cord being electrically connected to the pump by a waterproof connector.
    Type: Application
    Filed: March 9, 2016
    Publication date: September 14, 2017
    Inventors: WING-TAK HUI, ANDREW MATTHEW HUI, MARTIN WING-KIN HUI