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:
May. 13, 1980
Filed:
Jul. 10, 1978
Koichi Asai, Chiryu, JP;
Tohsuke Kawada, Chiryu, JP;
Yoshiyuki Iwaki, Himeji, JP;
Ryozo Kuroda, Himeji, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A stator core including a central cylindrical opening defined by a plurality of teeth consecutive through a circumferential continuous portion is prepared by winding a magnetic strip having a corresponding shape into a spiral. A forming cylindrical rod having a diameter larger than the inside diameter of the core is forced into that opening, and then a pressure is axially applied to the core to compress it to level the beginning and last edges of the strip. The rod is removed from the core and the pressure is released to complete the stator core having a predetermined inside diameter.