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. 31, 2023
Filed:
Apr. 10, 2020
Lg Electronics Inc., Seoul, KR;
LG Electronics Inc., Seoul, KR;
Abstract
The present disclosure relates to a washing machine including a tub, a drum, and a detergent supply device configured to supply an additive to the tub. The detergent supply device includes a plurality of cartridges storing additive, a plurality of check valve assemblies connected to the plurality of cartridges and configured to control extracting of the additive, a pump for extracting additive, an inlet channel defining a plurality of flow paths respectively connected to the plurality of check valve assemblies, where the inlet channel is configured to transmit a pressure change generated by the pump to the plurality of check valve assemblies, and a flow path switching valve connected to the pump and the inlet channel and configured to selectively establish fluid communication between the pump and any one of the plurality of flow paths of the inlet channel.