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:
Sep. 13, 2022
Filed:
Mar. 12, 2020
Applicant:
Lg Electronics Inc., Seoul, KR;
Inventors:
Assignee:
LG Electronics Inc., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/02 (2006.01); F04D 25/08 (2006.01); F04D 29/62 (2006.01); F04D 29/44 (2006.01); F04D 17/08 (2006.01); F04D 19/00 (2006.01);
U.S. Cl.
CPC ...
F04D 29/023 (2013.01); F04D 17/08 (2013.01); F04D 25/08 (2013.01); F04D 29/441 (2013.01); F04D 29/622 (2013.01); F04D 19/002 (2013.01); F04D 29/444 (2013.01); F05B 2280/6011 (2013.01); F05D 2300/611 (2013.01);
Abstract
An embodiment of the present disclosure discloses a motor assembly including a rotation shaft, an impeller including a hub fastened to the rotation shaft, and a plurality of blades protruding outward from an outer surface of the hub, an inlet body for surrounding an outer circumference of the impeller, and a coating layer coated on an inner surface of the inlet body, wherein at least a portion of the coating layer is ground in a form of powder by friction with the plurality of blades during rotation of the impeller.