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:
Jul. 29, 2025
Filed:
Aug. 13, 2020
Applicant:
Beijing Roborock Technology Co., Ltd., Beijing, CN;
Inventor:
Youcheng Lu, Beijing, CN;
Assignee:
Beijing Roborock Technology Co., Ltd., Beijing, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47L 11/40 (2006.01); A47L 11/24 (2006.01); B65D 25/40 (2006.01); B65D 47/00 (2006.01);
U.S. Cl.
CPC ...
A47L 11/4083 (2013.01); A47L 11/24 (2013.01); B65D 25/40 (2013.01); B65D 47/00 (2013.01);
Abstract
The present disclosure relates to a blockage and a smart cleaning device. The blockage includes a plug body and a hierarchical sealing structure. The plug body is a shaft-shaped structure as a whole, and is provided with a through hole that penetrates the plug body. The hierarchical sealing structure is sleeved on an outer side of the plug body, and is provided with at least two annular plugs stacked in an axial direction of the plug body.