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:
Jul. 22, 1997
Filed:
May. 12, 1995
Jouni Koskimies, Jyvaskyla, FI;
Harri Mustonen, Jyvaskyla, FI;
Jorma Virtanen, Jyvaskyla, FI;
Markku Ellila, Helsinki, FI;
Valmet Corporation, Helsinki, FI;
Abstract
A method for controlling transverse profiles of a web in a web-manufacturing machine, such as a board or paper machine, and/or being treated in a finishing machine. At least one of a transverse caliper, grammage and moisture profiles of the web is measured either directly or indirectly. Actuators acting upon these profiles are regulated by measurement signals. In order to optimize the quality of the web to be produced, the reel formation, and the runnability of the machine, the transverse tension profile of the web to be manufactured and/or treated is measured. Based on the measurement of the transverse tension profile, set profiles are formed which control the actuator(s) of the profile regulation.