The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 11, 2022
Filed:
Jan. 30, 2018
Lg Electronics Inc., Seoul, KR;
Hyemin Kang, Seoul, KR;
Sangik Lee, Seoul, KR;
LG ELECTRONICS INC., Seoul, KR;
Abstract
A robot cleaner includes a cleaner main body including a first connection duct, and a cleaning module including a second connection duct detachably coupled to the first connection duct to perform a dust suction function or a mopping function. The first and second connection ducts include a first facing surface and a second facing surface, respectively. The first and second facing surfaces face each other when the cleaning module is coupled to the cleaner main body. The first and second facing surfaces are formed in an annular shape to surround flow paths of the first and second connection ducts, respectively, and the first and second facing surfaces include a first terminal portion and a second terminal portion, respectively, which are attached to each other by a magnetic force.