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:
Oct. 17, 1989
Filed:
Aug. 14, 1987
Applicant:
Inventors:
Hakan I Karlsson, .ANG.kersbergo, SE;
Inge J Lundqvist, Sp.ang.nga, SE;
Bengt Y Hardin, Hagersten, SE;
Thomas L stman, Sp.ang.nga, SE;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
D21F / ; D21F / ; D21F / ;
U.S. Cl.
CPC ...
162198 ; 162253 ; 162259 ; 162D / ; 162D / ; 364471 ;
Abstract
A method of controlling the properties of a paper web across the feed direction, i.e., cross profile, in a paper machine. The cross profile is adjusted in a plurality of setting positions across the web. Proceeding from a measured cross profile and desired cross profile, an optimum correction in the setting positions is calculated, so that the cross profile is brought into agreement with the desired one. At this calculation the circumstance is utilized, such that a disturbance in the stock in a certain setting position results in a corresponding change in the cross profile of the paper web.