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:
Apr. 30, 1985
Filed:
Sep. 07, 1983
Applicant:
Inventors:
Genkichi Umeha, Tokyo, JP;
Takeshi Hiraoka, Saitama, JP;
Assignee:
Nippon Piston Ring Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23F / ; C21D / ; F16J / ; F16J / ;
U.S. Cl.
CPC ...
277 962 ; 277 84 ; 277 83 ; 277173 ; 277236 ; 277D / ; 148-1 ; 148-4 ; 148 13 ;
Abstract
A floating seal provided at its seal face with a hardened portion, in which the body of the floating seal is made of steel, and in which the sealing member is provided at its seal face with a deposit-alloyed surface obtained by surface remelting.