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. 23, 1994
Filed:
Mar. 18, 1993
Applicant:
Inventor:
Hiroyuki Kawase, Nagoya, JP;
Assignee:
NGK Insulators, Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P / ;
U.S. Cl.
CPC ...
2988923 ; 5128 / ; 5128 / ; 51326 ;
Abstract
A machining method of a ceramic turbine rotor having a hub portion integrally formed with a plurality of radial blades, the hub portion having a front end to be centered during a finishing process of the radial blades and a rear end coaxially connected to a metallic support shaft, which machining method includes the steps of grinding the front distal end of said hub portion to form a tapered surface thereon; engaging the tapered surface of said hub portion with a corresponding tapered surface of an attachment mounted on a spindle of a headstock or a tailstock; and finishing the radial blades of said rotor in a desired form.