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:
Nov. 22, 2022
Filed:
Apr. 02, 2019
Applicant:
Lg Electronics Inc., Seoul, KR;
Inventors:
Taejun Kim, Seoul, KR;
Atul Dhiman, Seoul, KR;
Shivendra Singh, Seoul, KR;
Jeeman Park, Seoul, KR;
Yeongcheol Mun, Seoul, KR;
Wonsuk Park, Seoul, KR;
Siyoung Oh, Seoul, KR;
Seokho Choi, Seoul, KR;
Assignee:
LG ELECTRONICS INC., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 25/08 (2006.01); F04D 29/38 (2006.01); F04D 29/34 (2006.01); F04D 29/64 (2006.01);
U.S. Cl.
CPC ...
F04D 25/088 (2013.01); F04D 29/384 (2013.01); F04D 29/34 (2013.01); F04D 29/646 (2013.01);
Abstract
A ceiling fan may include a shaft coupled to a ceiling, a cover to surround the shaft, a main blade having a blade hole which is a space open inward, and a sub-blade positioned in the blade hole. The sub-blade is disposed to have an angle of attack different from an angle of attack of the main blade. The ceiling fan may resolve a red zone of the air flow and may improve air volume and the flow rate due to the dual blades.