Patent Number: 10,028,629

Title: Window cleaning apparatus and method of controlling the same

Abstract: A window cleaning apparatus according to an embodiment of the present invention includes a first cleaning unit and a second cleaning unit attached on opposite surfaces of a window, respectively, through a magnetic field, and moving on the opposite surfaces of a window. The window cleaning apparatus includes a first magnetic module included in the first cleaning unit, a second magnetic module included in the second cleaning unit, and a control part moving or rotating at least one of the first and second cleaning units when the magnetic field between the first and second cleaning units is out of a normal range.

Inventors: Ryu; Man-Hyun (Seongnam-si, KR), Kim; Dong-Kyu (Gyeongsan-si, KR)

Assignee: RF Co., Ltd.

International Classification: A47L 1/03 (20060101)

Expiration Date: 2022-07-24 0:00:00