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:
May. 27, 2025
Filed:
Aug. 10, 2020
Lg Electronics Inc., Seoul, KR;
Il Ha Park, Seoul, KR;
Soo Young Oh, Seoul, KR;
Mi Ju Kim, Seoul, KR;
Hyun Dong Kim, Seoul, KR;
Jae Yong Jeong, Seoul, KR;
LG ELECTRONICS INC., Seoul, KR;
Abstract
An additive supply apparatus for a washing machine includes a cartridge configured to accommodate a liquid additive therein and discharge the additive through a discharge port formed at one side thereof, a discharge tube that is connected to the cartridge and defines a discharge path configured to guide the additive discharged from the cartridge, a check valve assembly interposed between the cartridge and the discharge tube and configured to selectively open or close the discharge tube and the discharge port of the cartridge depending on a change in pressure, a pump configured to generate a pressure to be provided to the check valve assembly, and a pressure tube configured to connect the check valve assembly and the pump and transmit the pressure generated from the pump to the check valve assembly. The check valve assembly has one end connected to the cartridge and another end connected to the discharge tube.