Invention Grant
- Patent Title: Handheld cleaning device
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Application No.: US17698138Application Date: 2022-03-18
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Publication No.: US11672398B2Publication Date: 2023-06-13
- Inventor: Yunlong Yang
- Applicant: Beijing Roborock Technology Co., Ltd.
- Applicant Address: CN Beijing
- Assignee: BEIJING ROBOROCK TECHNOLOGY CO., LTD.
- Current Assignee: BEIJING ROBOROCK TECHNOLOGY CO., LTD.
- Current Assignee Address: CN Beijing
- Agency: Morgan, Lewis & Bockius LLP
- Priority: CN 2110474030.6 2021.04.29
- Main IPC: A47L11/30
- IPC: A47L11/30 ; A46B13/00 ; A46B13/02 ; A47L11/40

Abstract:
A handheld cleaning device includes a surface-moving portion and an upright portion. The surface-moving portion is in contact with a surface to be cleaned and is connected with the upright portion. The upright portion is configured to move the surface-moving portion in a case in which the surface-moving portion is in operation. The handheld cleaning device further includes a power battery configured to supply power to the handheld cleaning device. The surface-moving portion further includes at least two non-coaxial brushrolls configured to clean stains on the surface to be cleaned. The rotation speed of each brushroll is less than 3000 r/min.
Public/Granted literature
- US20220346616A1 Handheld Cleaning Device Public/Granted day:2022-11-03
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