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:
Mar. 05, 2002
Filed:
Feb. 22, 2000
Applicant:
Inventors:
Seppo Tavi, Jyväskylä, FI;
Harri Mustonen, Jyväskylä, FI;
Antti Komulainen, Keuruu, FI;
Assignee:
Valmet Corporation, Helsinki, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21F 1/100 ;
U.S. Cl.
CPC ...
D21F 1/100 ;
Abstract
The invention concerns an equipment in a paper/board machine for regulation of the difference of draw. In the solution in accordance with the invention, the difference of draw in the web is regulated on the basis of the measured tension of the web. Preferably, the regulation of the difference of draw takes place by regulating the drives at the inlet and/or outlet of a web run not supported by a wire.