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:
Aug. 11, 1987
Filed:
Dec. 08, 1986
Applicant:
Inventors:
Curtis S Tassen, Huntington, WV (US);
Gaylord D Smith, Huntington, WV (US);
Assignee:
Inco Alloys International, Inc., Huntington, WV (US);
Primary Examiner:
Int. Cl.
CPC ...
F22B / ; F22B / ;
U.S. Cl.
CPC ...
122511 ; 122D / ; 1222 / ; 138143 ; 165180 ; 165905 ; 420448 ;
Abstract
A composite tube structure having an inner substrate alloy and an outer, corrosion resistant alloy suitable for use in fluid-bed coal combustion reactors to form a water wall around at least a portion of the periphery of the fluid bed zone. The outer, corrosion resistant alloy centers around a composition of 0.1% carbon, 0.2% silicon, 0.5% manganese, 22% chromium, 3.8% aluminum, 0.4% titanium, 0.05% nitrogen, 0.2% molybdenum, 32% nickel, balance iron.