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:
Mar. 22, 2022
Filed:
Nov. 14, 2019
Lg Electronics Inc., Seoul, KR;
LG Electronics Inc., Seoul, KR;
Abstract
A washing machine includes a tub and a drum. The tub includes a first case and a second case welded to each other; a first coupling surface extending along a circumference of the first case and facing the second case; a second coupling surface extending along a circumference of the second case and coupled to the first coupling surface; and a coupling protrusion that protrudes from the first coupling surface toward the second coupling surface and that includes a protruding end portion welded to the second coupling surface. The coupling protrusion includes: a main coupling protrusion that extends along the first coupling surface; and an auxiliary coupling protrusion that is disposed radially outward of the main coupling protrusion and spaced apart from the main coupling protrusion and that defines a discharge opening configured to discharge washing water entered between the main coupling protrusion and the auxiliary coupling protrusion.