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:
Aug. 06, 2024
Filed:
Jul. 05, 2019
Applicant:
Lg Electronics Inc., Seoul, KR;
Inventors:
Assignee:
LG ELECTRONICS INC., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D06F 33/42 (2020.01); D06F 23/04 (2006.01); D06F 34/10 (2020.01); D06F 37/30 (2020.01); D06F 39/08 (2006.01); F04D 13/06 (2006.01); F04D 15/00 (2006.01); H02P 23/14 (2006.01); D06F 33/48 (2020.01); D06F 103/18 (2020.01); D06F 103/24 (2020.01); D06F 105/08 (2020.01); D06F 105/46 (2020.01); H02P 29/20 (2016.01);
U.S. Cl.
CPC ...
D06F 33/42 (2020.02); D06F 23/04 (2013.01); D06F 34/10 (2020.02); D06F 37/30 (2013.01); D06F 37/304 (2013.01); D06F 39/08 (2013.01); D06F 39/085 (2013.01); D06F 39/087 (2013.01); F04D 13/06 (2013.01); F04D 15/0066 (2013.01); H02P 23/14 (2013.01); D06F 33/48 (2020.02); D06F 2103/18 (2020.02); D06F 2103/24 (2020.02); D06F 2105/08 (2020.02); D06F 2105/46 (2020.02); H02P 29/20 (2016.02);
Abstract
The present disclosure relates to a laundry treatment machine. A pump motor provided in a drain pump is controlled to correspond to the operation of the main motor and the water level, so that the pump motor slows down based on the speed of rotation of the main motor and the water level and keeps operating at low speed. Therefore, the pump motor is able to keep operating without stopping operation, and the amount of noise caused by the start-up of the motor is reduced, and the time taken to align the rotor of the motor in position is reduced, thereby reducing drainage time and improving the drainage performance of the drain pump.