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. 13, 1984
Filed:
Aug. 24, 1983
Applicant:
Inventors:
Tuyoshi Morishita, Hiroshima, JP;
Toshihiko Hattori, Hiroshima, JP;
Yashuhumi Kawado, Hiroshima, JP;
Kouji Tarumoto, Hiroshima, JP;
Assignee:
Toyo Kogyo Co., Ltd., Hiroshima, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; C21D / ;
U.S. Cl.
CPC ...
148 315 ; 148 166 ; 428417 ; 428422 ; 428457 ; 428469 ;
Abstract
A nitrided cast iron product comprising cast iron matrix material and graphite particles distributed in the matrix material, a nitrided layer formed in a surface of the cast iron product and having gaps between the graphite particles and the matrix material, the gaps being exposed to the surface of the product and filled with resin which has a resistance to dissolution under a temperature below 250.degree. C.