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:
Aug. 01, 2000
Filed:
Feb. 11, 1999
Applicant:
Inventors:
Hidekatsu Shigihara, Higashimatsuyama, JP;
Mitsuya Ono, Kawagoe, JP;
Assignee:
Zexel Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B23P / ;
U.S. Cl.
CPC ...
29888025 ; 2988802 ;
Abstract
There is provided a method of manufacturing a rotor, which is capable of manufacturing a sufficiently high-strength and well-finished rotor at a reasonable price. A continuous cast rod is out into a billet having a predetermined length. The billet is heated and then fitted in a die assembly. A plurality of vane slits and a shaft hole are formed in the billet fitted in the die assembly, by the use of a press.