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:
Oct. 17, 2023
Filed:
Nov. 14, 2019
Applicant:
Ebara Corporation, Tokyo, JP;
Inventors:
Miwa Hidekura, Tokyo, JP;
Ryoken Yomogida, Tokyo, JP;
Assignee:
Ebara Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/24 (2006.01); B23P 15/04 (2006.01); F04D 1/00 (2006.01);
U.S. Cl.
CPC ...
F04D 29/24 (2013.01); B23P 15/04 (2013.01); F04D 1/00 (2013.01);
Abstract
The impeller () includes a main plate () formed from a metal plate; and vanes () each formed from a metal plate. Each of the vanes () has a three-dimensional portion (A) having a surface inclined with respect to a rotation axis (CA) of the impeller () and a two-dimensional portion (B) having a surface parallel to the rotation axis (CA) of the impeller (), and the two-dimensional portion (B) is fixed to the main plate () by a first weld () formed by projection welding.