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.:

US 9541286 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 10, 2017

Filed:

Oct. 18, 2005
Applicants:

Jan Storbacka, Kotka, FI;

Petri Tikka, Karhula, FI;

Inventors:

Jan Storbacka, Kotka, FI;

Petri Tikka, Karhula, FI;

Assignee:

Andritz Oy, Helsinki, FI;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F23G 7/04 (2006.01); D21C 11/12 (2006.01); F23M 5/08 (2006.01);
U.S. Cl.
CPC ...
F23G 7/04 (2013.01); D21C 11/12 (2013.01); F23M 5/08 (2013.01); F23G 2203/70 (2013.01);
Abstract

In a boiler, a space is reserved to expand the boiler by increasing the front and rear walls. To expand the boiler, wall additions are added to increase the width of the front and rear walls. After the expansion, the distance between the front and rear walls is substantially the same distance between the front and rear walls before the expansion.


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