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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.:

US 11828293 B1

PDFFull Text
Date of Patent:
Nov. 28, 2023

Filed:

Nov. 26, 2019

Closed impeller and method of manufacturing the same

Applicants:

Daikin Industries, Ltd., Osaka, JP;

Uacj Corporation, Tokyo, JP;

Inventors:

Tadashi Okada, Osaka, JP;

Kosuke Nishimura, Osaka, JP;

Kaoru Ueda, Aichi, JP;

Yasunaga Itoh, Aichi, JP;

Assignees:

DAIKIN INDUSTRIES, LTD, Osaka, JP;

UACJ CORPORATION, Tokyo, JP;

Attorneys:

J-TEK LAW PLLC

Jeffrey D. Tekanic

Scott T. Wakeman

Primary Examiner:

Long T Tran

Int. Cl.
CPC ...
F04D 29/28 (2006.01); B23K 1/00 (2006.01); B23K 35/02 (2006.01); B23K 35/28 (2006.01); C22C 21/02 (2006.01);
U.S. Cl.
CPC ...
F04D 29/28 (2013.01); B23K 1/0008 (2013.01); B23K 35/0238 (2013.01); B23K 35/286 (2013.01); C22C 21/02 (2013.01);
Abstract

A closed impeller () includes an impeller main body (), which is composed of an aluminum alloy and has blades () that protrude from a hub (). A shroud () covers the blades. The blades and the shroud are joined together by brazed joints (). The shroud () is formed from a brazing sheet () that comprises a core material (), which is composed of an aluminum alloy, and a filler material layer (), which is disposed on an outermost surface () of the shroud that opposes or faces the blades when the shroud is brazed to the blades.

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Quick Actions:

Okada, Tadashi. (2023). Closed impeller and method of manufacturing the same (U.S. Patent No. 11828293). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11828293

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