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:
May. 27, 1980
Filed:
Mar. 27, 1978
Applicant:
Inventors:
Kousuke Fukami, Ibaraki, JP;
Masanori Fujimoto, Ibaraki, JP;
Fumio Fujita, Osaka, JP;
Tsuneyuki Nagase, Takatsuki, JP;
Assignees:
Sumitomo Chemical Company, Limited, Osaka, JP;
Hayashibara Biochemical Laboratories, Inc., Okayama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
21914523 ; 148 23 ; 148 24 ; 148 26 ; 2191461 ;
Abstract
A covered electrode for arc welding is disclosed which exhibits tight adhesion between the cover material and the core wire and provides good arc stability. This covered electrode comprises a core wire coated with a coating composition comprising (a) a powdered mixture of an inorganic oxide, carbonate and fluoride, (b) an alkali silicate and (c) 0.001 to 5.0% by weight of pullulan based on the alkali silicate.