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:
Jul. 28, 2009
Filed:
Jan. 26, 2005
Applicants:
Jacques Piret, Liège, BE;
Nicolas Mousel, Dudelange, LU;
Roland Dhondt, Grembergen, BE;
Emile Breden, Luxembourg, LU;
Inventors:
Jacques Piret, Liège, BE;
Nicolas Mousel, Dudelange, LU;
Roland Dhondt, Grembergen, BE;
Emile Breden, Luxembourg, LU;
Assignee:
Paul Wurth S.A., Grand Duchy, LU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for protecting a tuyere assembly and a refractory lining of a furnace, and in particular a blast furnace, against damage caused by expansion of the refractory lining. This method includes providing a clearance between the tuyere assembly and a refractory lining portion below the tuyere assembly and monitoring this clearance by means of a displacement sensor.