Patents by Inventor Wing-tak Hui

Wing-tak 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
  • 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
  • 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
  • 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
  • Patent number: D806933
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: January 2, 2018
    Assignee: COMPUROBOT TECHNOLOGY CO.
    Inventor: Wing-Tak Hui
  • Patent number: D848094
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: May 7, 2019
    Inventor: Wing-Tak Hui
  • Patent number: D849342
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: May 21, 2019
    Assignee: COMPUROBOT TECHNOLOGY COMPANY
    Inventor: Wing-Tak Hui
  • Patent number: D849343
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: May 21, 2019
    Assignee: COMPUROBOT TECHNOLOGY COMPANY
    Inventor: Wing-Tak Hui
  • Patent number: D858917
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: September 3, 2019
    Assignee: COMPUROBOT TECHNOLOGY COMPANY
    Inventor: Wing-Tak Hui
  • Patent number: D859765
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: September 10, 2019
    Assignee: COMPUROBOT TECHNOLOGY COMPANY
    Inventor: Wing-Tak Hui
  • Patent number: D866463
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: November 12, 2019
    Assignee: COMPUROBOT TECHNOLOGY COMPANY
    Inventor: Wing-Tak Hui
  • Patent number: D876733
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: February 25, 2020
    Assignee: COMPUROBOT TECHNOLOGY COMPANY
    Inventor: Wing-Tak Hui
  • Patent number: D950007
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: April 26, 2022
    Assignee: COMPUROBOT TECHNOLOGY COMPANY
    Inventor: Wing-Tak Hui
  • Patent number: D977061
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: January 31, 2023
    Assignee: Compurobot Technology Company
    Inventor: Wing-Tak Hui
  • Patent number: D1004868
    Type: Grant
    Filed: March 14, 2022
    Date of Patent: November 14, 2023
    Assignee: Thunder Host Limited
    Inventor: Wing-Tak Hui