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. 10, 1993
Filed:
Jun. 11, 1991
Applicant:
Inventor:
Ragnar Ekbom, Finsp.ANG.ng, SE;
Assignee:
ABB Stal AB, Finspang, SE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22F / ;
U.S. Cl.
CPC ...
419 49 ; 419-8 ;
Abstract
Method for manufacturing rings or discs having a blade or vane rim from a powder which is received in a mold cavity formed by a gas-tight casing (10, 11, 12) and is isostatically hot pressed in the casing to form a monolithic body. A core (13) of hexagonal boron nitride or graphite having through apertures (14) corresponding to the profile of the individual blades or vanes, is located in the mold cavity said apertures being filled with powder to form the blades or vanes as an integrated portion of the monolithic body obtained by the isostatic hot pressing.