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:
Dec. 02, 2008
Filed:
Jan. 29, 2004
W. Jason Skeen, Export, PA (US);
Dennis H. Alcorn, Verona, PA (US);
Robert G. Frank, Sarver, PA (US);
Steven M. Horcicak, New Kensington, PA (US);
W. Jason Skeen, Export, PA (US);
Dennis H. Alcorn, Verona, PA (US);
Robert G. Frank, Sarver, PA (US);
Steven M. Horcicak, New Kensington, PA (US);
PPG Industries Ohio, Inc., Cleveland, OH (US);
Abstract
A furnace includes a section defined as a heating section capable of attaining a predetermined temperature, the heating section having an entrance end and an exit end; a section defined as a cooling section capable of having a temperature gradient from entrance end of the cooling section to exit end of the cooling section, the entrance end of the cooling section mounted in a fixed relationship to the exit end of the heating section; a section defined as an edge cooling section between the exit end of the heating section and the entrance end of the cooling section; and an edge cooling device positioned in the edge cooling section relative to a predetermined area, and capable of cooling at least selected peripheral portions of the predetermined area at a faster rate than center portions of the predetermined area.