IDiyas

For the Inventor, By the Inventor

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.:

US 11214909 B1

PDFFull Text
Date of Patent:
Jan. 04, 2022

Filed:

Jan. 20, 2017

Drum washing machine and method for cleaning tub thereof

Applicant:

Lg Electronics Inc., Seoul, KR;

Inventors:

Sunku Kwon, Seoul, KR;

Kahyung Choi, Seoul, KR;

Youngho Kim, Seoul, KR;

Inhyouk Seo, Seoul, KR;

Youngkee Oh, Seoul, KR;

Assignee:

LG Electronics Inc., Seoul, KR;

Attorney:

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP

Primary Examiner:

Joseph L Perrin

Int. Cl.
CPC ...
D06F 35/00 (2006.01); D06F 33/43 (2020.01); D06F 39/08 (2006.01); D06F 37/06 (2006.01); D06F 37/36 (2006.01); D06F 103/26 (2020.01); D06F 105/02 (2020.01); D06F 105/08 (2020.01); D06F 33/36 (2020.01); D06F 33/42 (2020.01); D06F 33/56 (2020.01); D06F 33/69 (2020.01); D06F 33/62 (2020.01);
U.S. Cl.
CPC ...
D06F 35/008 (2013.01); D06F 33/43 (2020.02); D06F 33/36 (2020.02); D06F 33/42 (2020.02); D06F 33/56 (2020.02); D06F 33/62 (2020.02); D06F 33/69 (2020.02); D06F 37/065 (2013.01); D06F 37/36 (2013.01); D06F 39/083 (2013.01); D06F 39/085 (2013.01); D06F 39/087 (2013.01); D06F 39/088 (2013.01); D06F 2103/26 (2020.02); D06F 2105/02 (2020.02); D06F 2105/08 (2020.02);
Abstract

A drum washing machine implements a control method, allowing a tub of the drum washing machine to be easily cleaned. The method includes supplying washing water during a first water supplying step to the interior of the tub while a drum rotatably supported in the tub rotates at a water-supplying RPM. A first wash step is executed following completion of the first water supplying step, and includes accelerating rotation of the drum from the water-supplying RPM to a first-wash RPM to that create a circulatory flow in which the washing water falls from the top of opposite ends of the tub while circulating along the inner circumferential surface of the tub due to the rotational power of the drum. A wash draining step is started during the first wash step, and includes turning on the drain pump and controlling the amount of the washing water in the tub.

Find Patent Forward Citations

Loading…