Patent · US Active

Window cleaning tool

US11350805B2 · kind B2 · utility

0Cited by

0References

10Claims

0Family size

Inventors

Jong-Myong Kim · Uiwang-si, KR
Yoon Tae Kim · Jojong-myeon, KR

Key dates

Filing date	Oct 30, 2020
Grant date	Jun 7, 2022
Priority date	—
Expiry date	Oct 30, 2040

Classification

Technology area (CPC A)Human Necessities
CPC primaryA47L1/03
WIPO fieldFurniture, games
WIPO sectorOther fields

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.