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:
Sep. 26, 2023
Filed:
Jul. 09, 2020
Toyo Electric Mfg. Co., Ltd., Tokyo, JP;
Kenji Fujiwara, Kanagawa, JP;
Yoshihiro Okamoto, Kanagawa, JP;
Yoshihisa Hojo, Kanagawa, JP;
Keiichi Morinaga, Kanagawa, JP;
Yuya Iwamoto, Kanagawa, JP;
Kyouji Okamoto, Kanagawa, JP;
TOYO ELECTRIC MFG. CO., LTD., Tokyo, JP;
Abstract
A method of preheating an unfinished stator as an intermediate product before a stator as a final product for a motor is provided in order to preheat a mold for molding together with the unfinished stator in short time by using preheating facilities with simplified structures. In the method, the mold has a hollow and longitudinal barrel portion and a flange portion extending outward from an end of the barrel portion. The flange portion is arranged at a horizontal position to turn the barrel portion upward and an end of a cylindrical and longitudinal frame is put on the flange portion in a state where a core of the unfinished stator is fitted in the frame. A heat-resistant box of which an underside is opened covers the frame and the mold to surrounded outsides of the frame and the mold.