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.

Date of Patent:
Aug. 01, 2023

Filed:

Jan. 04, 2021
Applicant:

World Chemical Co., Ltd., Toyko, JP;

Inventors:

Wataru Mori, Tokyo, JP;

Toru Ebihara, Tokyo, JP;

Takashi Yoshida, Tokyo, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F04D 13/02 (2006.01); F04D 29/046 (2006.01); F04D 29/20 (2006.01);
U.S. Cl.
CPC ...
F04D 13/024 (2013.01); F04D 13/026 (2013.01); F04D 29/046 (2013.01); F04D 29/20 (2013.01);
Abstract

A magnetic pump is provided that includes a magnet can and an impeller that are individually formed, that is capable of easily performing assembling/disassembling, that has high workability during manufacturing or maintenance, and that has high strength in a connection part between the magnet can and the impeller, and to provide a rotary body for the magnetic pump. Particularly, the fitted connection part between the magnet can and the impeller is a spigot ferrule that has a simple structure and that is firmly connectable, and a cutout portion and a convex portion are formed at a part at which an innermost part of a socket and a front end part of a spigot face each other, and the connection strength can be further heightened by twisting and turning the spigot-ferrule part, and the return of a turned state of the spigot-ferrule part is prevented by fitting the restraining member into a gap generated behind the convex portion in the turning direction of the convex portion that has entered the cutout portion and the cutout portion, and therefore the fitted connection part is never loosened.


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