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:
Dec. 03, 1985
Filed:
Jan. 10, 1985
Applicant:
Inventors:
Assignee:
Nippon Piston Ring Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F / ;
U.S. Cl.
CPC ...
419-5 ; 419-8 ; 419-9 ; 419 30 ; 419 38 ; 419 47 ; 419 66 ;
Abstract
A composite camshaft having a plurality of fitting members, such as cam lobes and journals, fabricated from metal powders having a composition of an Fe-C-Cu system which contains 17-35% by weight of Cu and joined to a steel shaft by a binding effect of Cu, which melts out of the fitting member and full penetrate a clearance between the fitting member and the steel shaft to join them as one body.