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. 07, 2019
Filed:
Oct. 22, 2015
Applicant:
Lg Electronics Inc., Seoul, KR;
Inventors:
Assignee:
LG ELECTRONICS INC., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 1/00 (2006.01); D06F 39/08 (2006.01); D06F 58/02 (2006.01); D06F 58/20 (2006.01); D06F 58/22 (2006.01); D06F 58/24 (2006.01); F04D 13/02 (2006.01); F04D 29/22 (2006.01); F04D 29/42 (2006.01);
U.S. Cl.
CPC ...
D06F 58/22 (2013.01); D06F 39/085 (2013.01); D06F 58/02 (2013.01); D06F 58/24 (2013.01); F04D 1/00 (2013.01); F04D 29/22 (2013.01); D06F 58/20 (2013.01); D06F 58/206 (2013.01); F04D 13/02 (2013.01); F04D 29/4293 (2013.01);
Abstract
A drain pump is provided that may include a pump motor; an impeller connected to a rotational shaft of the pump motor. The impeller may include a circular hub, an impeller shaft that extends from a center of a lower surface of the hub, and a plurality of blades that extends from an outer circumferential surface of the impeller shaft and the lower surface of the hub in a radial direction of the hub. The hub may have a longitudinal cross section in which a thickness of the hub gradually increases from the center of the lower surface toward an edge thereof.