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:
Nov. 23, 2004
Filed:
Dec. 27, 2001
Applicant:
Inventors:
Arttu Laitinen, Tampere, FI;
Matti Tervonen, Hyvinkää, FI;
Mika Viljanmaa, Helsinki, FI;
Pekka Koivukunnas, Järvenpää, FI;
Erkki Leinonen, Järvenpää, FI;
Hannu Vuorikari, Helsinki, FI;
Erkki Kiiski, Tampere, FI;
Assignee:
Metso Paper, Inc., Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21K 1/02 ; F16C 1/300 ;
U.S. Cl.
CPC ...
B21K 1/02 ; F16C 1/300 ;
Abstract
A roll end ( ) for a roll, in particular for a heatable roll, in a paper or board machine or in a finishing machine is made by a powder metallurgy process in a mold ( ) such that a duct system ( ) for a heat transfer medium is formed in connection with the manufacture of the roll end. A hot isostatic pressing process in particular is used in the manufacture.