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:
Nov. 20, 1990
Filed:
Sep. 05, 1989
Applicant:
Inventors:
Toshio Takeda, Nagoya, JP;
Yoshiharu Okochi, Nishio, JP;
Assignee:
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01C / ; F01D / ;
U.S. Cl.
CPC ...
418206 ; 29447 ; 164 99 ; 403267 ; 403269 ; 4152161 ; 4162 / ;
Abstract
A rotor for fluidic apparatus such as, blowers, compressors, fluidic motors and vacuum pumps includes a drive shaft having concaved portions on its periphery and a rotatable member cast around the concaved portions of the drive shaft. The rotor according to the present invention is manufactured through the steps of forming the drive shaft, disposing the formed drive shaft into the cavity of a molding die, and then pouring the molten metal into the cavity while disposing the drive shaft therein. The resulted rotor has no play in the direction of its rotation of its rotatable member.