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.

Date of Patent:
Jun. 03, 1980

Filed:

Oct. 31, 1977
Applicant:
Inventors:

Hans W Rieger, Buch, CH;

Hanspeter Alder, Flurlingen, CH;

Assignee:

Swiss Aluminium Ltd., Chippis, CH;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B05D / ;
U.S. Cl.
CPC ...
428408 ; 204 / ; 204 39 ; 2042 / ; 204294 ; 313345 ; 313355 ; 427 34 ; 427 35 ; 427113 ; 4271264 ; 428446 ; 428539 ;
Abstract

The minute pores and discontinuities which are normally present in protective oxide coatings on carbon bodies can be closed and, if desired, filled by immersing the coated carbon body in a metal salt melt having a boiling point above 400.degree. C., and electrodepositing the melt on the coated carbon body. When the electrodeposition step is continued sufficiently long to fill the pores, the product when cool is a coated carbon body carrying an oxidation agent-resistant coating which is keyed into the surface of the carbon.


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