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:
Sep. 05, 2017
Filed:
Aug. 12, 2015
Applicant:
Johns Manville, Denver, CO (US);
Inventors:
Juan Carlos Madeni, Littleton, CO (US);
John Wayne Baker, Golden, CO (US);
Assignee:
Johns Manville, Denver, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D 9/50 (2006.01); C21D 9/00 (2006.01); C03B 5/235 (2006.01); C21D 1/74 (2006.01); C03B 5/44 (2006.01);
U.S. Cl.
CPC ...
C03B 5/2356 (2013.01); C21D 1/74 (2013.01); C21D 9/0068 (2013.01); C21D 9/50 (2013.01); C03B 5/44 (2013.01); C03B 2211/22 (2013.01); C03B 2211/60 (2013.01);
Abstract
A portion of a submerged combustion burner is disposed into a pressure vessel. The portion of the submerged combustion burner has a welded area that has a first microstructure defined by a first number of voids. The vessel is filled with an inert gas, pressurized, and heated. Pressurizing and heating operations are performed for a time and at a temperature and a pressure sufficient to produce a second microstructure in the welded area of the burner. The second microstructure is defined by a second number of voids less than the first number of voids.