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. 02, 2006
Filed:
Jun. 17, 2005
Howard J. Farr, Blue Ash, OH (US);
Keith H. Betscher, West Chester, OH (US);
Richard R. Worthing, Jr., Cincinnati, OH (US);
D. Sangeeta, Cincinnati, OH (US);
Himanshu B. Vakil, Niskayuna, NY (US);
Curtis A. Johnson, Niskayuna, NY (US);
Thomas J. Cartier, Jr., Scotia, NY (US);
Edward B. Stokes, Charlotte, NC (US);
Heinz Jaster, Schenectady, NY (US);
Alexander S. Allen, Houston, TX (US);
Howard J. Farr, Blue Ash, OH (US);
Keith H. Betscher, West Chester, OH (US);
Richard R. Worthing, Jr., Cincinnati, OH (US);
D. Sangeeta, Cincinnati, OH (US);
Himanshu B. Vakil, Niskayuna, NY (US);
Curtis A. Johnson, Niskayuna, NY (US);
Thomas J. Cartier, Jr., Scotia, NY (US);
Edward B. Stokes, Charlotte, NC (US);
Heinz Jaster, Schenectady, NY (US);
Alexander S. Allen, Houston, TX (US);
General Electric Company, Schenectady, NY (US);
Abstract
Method for stripping ceramic coatings from the surfaces of articles. The apparatus includes a dedicated pressure vessel, such as an autoclave, which is maintained at an elevated temperature. Caustic solution is preheated to a first elevated temperature before injecting it into the autoclave, and the caustic solution is filtered and cooled after use in the autoclave. The articles are stripped of coating by maintaining the articles at an elevated temperature and pressure for a predetermined time. Various options include the use of analytical equipment to maintain the chemistry of the caustic solution and use of a volatile organic solution to prepressurize the autoclave and shorten cycle time. The articles are transferred to a separate pressure vessel after completion of the stripping operation so that the autoclave used for stripping can be maintained at an elevated temperature, thereby shortening the cycle time for stripping of additional articles.