公开(公告)号：US11350805B2

公开(公告)日：2022-06-07

申请号：US17084806

申请日：2020-10-30

Applicant: Jong Myong Kim ,  Yoon Tae Kim

Inventor： Jong Myong Kim ,  Yoon Tae Kim

IPC: A47L1/15 ,  A47L1/12 ,  A47L1/03

Abstract: Proposed is to a window cleaning tool including an internal unit or including an internal unit and an external unit. The window cleaning tool is configured to prevent an external unit from separating and falling, and to realize smooth movement of a cleaner during washing because when an internal unit moves up, the front end of an internal unit blade rotates away from an inner surface of glass and the front end of an external unit blade rotates away from an outer surface of the glass, and when the internal unit moves down, the front ends of the internal unit blade and the external unit blade rotate toward the surfaces of the glass to be pressed.

公开(公告)号：US20210127913A1

公开(公告)日：2021-05-06

申请号：US17084806

申请日：2020-10-30

Applicant: Jong Myong KIM ,  Yoon Tae KIM

Inventor： Jong Myong KIM ,  Yoon Tae KIM

IPC: A47L1/15 ,  A47L1/12 ,  A47L1/03

Abstract: Proposed is to a window cleaning tool including an internal unit or including an internal unit and an external unit. The window cleaning tool is configured to prevent an external unit from separating and falling, and to realize smooth movement of a cleaner during washing because when an internal unit moves up, the front end of an internal unit blade rotates away from an inner surface of glass and the front end of an external unit blade rotates away from an outer surface of the glass, and when the internal unit moves down, the front ends of the internal unit blade and the external unit blade rotate toward the surfaces of the glass to be pressed.