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. 11, 1981
Filed:
Apr. 11, 1980
Applicant:
Inventors:
Assignee:
Toyo Seikan Kaisha, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65D / ;
U.S. Cl.
CPC ...
220 75 ; 219 64 ; 220D / ; 403271 ; 428556 ; 428629 ; 428633 ; 428687 ; 428648 ;
Abstract
Disclosed is a bright welded seam can of tinplate having a side seam formed by welding, wherein each of the inner and outer surfaces of the side seam has an outermost surface layer having a thickness of 50 to 400 A and being composed of oxides and a subsequent intermediate layer composed of an iron-tin alloy, which has a thickness corresponding to 5 to 100% of the thickness of the whole tin layer in the tinplate blank, and wherein the inner and outer surfaces of the side seam have a reflectance corresponding to at least 60% of the reflectance of the tinplate. This bright welded seam can is excellent in the appearance of the seam, the corrosion resistance and the adhesion of the coating.