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:
Dec. 26, 1989
Filed:
Apr. 11, 1988
Applicant:
Inventor:
Charles C McComas, Stuart, FL (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03C / ;
U.S. Cl.
CPC ...
156646 ; 156656 ; 156664 ; 156667 ; 134-3 ; 134 37 ; 427307 ; 2940204 ;
Abstract
Removal of ceramic thermal barrier coatings from metallic substrates is achieved by contacting the coated article with fluorine containing gas at an elevated temperature. The gas penetrates the ceramic to attack the interface between the substrate and ceramic causing the ceramic to spall.