Invention Grant
- Patent Title: Pool cleaning vehicle
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Application No.: US17509542Application Date: 2021-10-25
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Publication No.: US11668111B2Publication Date: 2023-06-06
- Inventor: Martin Wing-Kin Hui , Wing-Tak Hui , Andrew Matthew Hui
- Applicant: NATIONAL WISE LIMITED
- Applicant Address: CN Hong Kong
- Assignee: National Wise Limited
- Current Assignee: National Wise Limited
- Current Assignee Address: HK Hong Kong
- Agency: Weiss & Moy, PC
- Agent Jeffrey D. Moy
- The original application number of the division: US16569240 2019.09.12
- Main IPC: E04H4/16
- IPC: E04H4/16

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.
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