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:
Feb. 13, 2024
Filed:
Nov. 15, 2019
Lg Electronics Inc., Seoul, KR;
Hyemin Kim, Seoul, KR;
Sooyoung Oh, Seoul, KR;
Kyosoon Chae, Seoul, KR;
Jinho Kim, Seoul, KR;
Heeyeon Kim, Seoul, KR;
Beomjun Kim, Seoul, KR;
Seungwoo Park, Seoul, KR;
LG Electronics Inc., Seoul, KR;
Abstract
A washing machine includes a tub containing water, a drum rotatably provided in the tub to accommodate laundry, and a detergent mixing device configured to mix additives supplied into the tub. The detergent mixing device includes a pair of additive cartridges containing a liquid additive and a peristaltic pump configured to selectively supply the additive discharged from the pair of additive cartridges to the tub. The peristaltic pump includes a first path switching motor, a first tub, a second tube, a first rotor and a second rotor rotated by the flow path switching motor, a first rotary bearing permitting a rotation of the first rotor in a first direction and restricting a rotation of the first rotor in a second direction, and a second rotary bearing permitting a rotation of the second rotor in the second direction and restricting a rotation of the second rotor in the first direction.