Patents Assigned to NATIONAL WISE LIMITED
  • Pool cleaning vehicle
    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
  • POOL CLEANING VEHICLE
    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
  • POOL CLEANING VEHICLE
    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