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 7765674 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 03, 2010

Filed:

Mar. 07, 2008
Applicants:

Masami Nakano, Shizuoka, JP;

Takayuki Kobayashi, Tochigi, JP;

Inventors:

Masami Nakano, Shizuoka, JP;

Takayuki Kobayashi, Tochigi, JP;

Assignee:

Showa Corporation, Saitama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

In a magnet cover caulking method of an electric motor, the method achieves caulking and fixation by forming a taper-shaped outer peripheral portion, a diameter of which is reduced toward an outer side in an axial direction, in an outer periphery of a magnet holder, arranging an annular caulking jig in an outer periphery of a rotating shaft, pressing a taper-shaped forming portion a diameter of which is increased toward an outer side in an axial direction, provided in one end side of an inner periphery of the caulking jig to a straight end portion of a magnet cover installed to the outer periphery of the magnet and the magnet holder from the axial direction, and forming the end portion of the magnet cover according to the taper-shaped outer peripheral portion of the magnet holder.


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Nakano, Masami. (2010). Magnet cover caulking method of electric motor (U.S. Patent No. 7765674). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7765674

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