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. 20, 2002
Filed:
Aug. 28, 1997
Applicant:
Inventor:
Heinz-Michael Zaoralek, Königsbronn, DE;
Assignee:
Schwabische Huttenewerke GmbH, Aalen-Wasseralfingen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F28F 5/02 ;
U.S. Cl.
CPC ...
F28F 5/02 ;
Abstract
Through the flanged trunnion of a heated roll for the treatment of a material web, more particularly a calender roll, a partial flow of the heat transfer fluid used for heating is diverted between the supply and return of the fluid so that the flanged trunnion is heated or cooled in its central portion. For influencing the radial expansion of the trunnion when subjected to heat and increasing the fluid flow heating or cooling the trunnion, the trunnion may comprise a central cavity sealing off the centerbore of the roll, the partial flow of the heat transfer fluid being directed through this central cavity.