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. 09, 1988
Filed:
Jul. 16, 1986
Applicant:
Inventor:
Ari Maijala, Tampere, FI;
Assignee:
Yhtyneet Paperitehtaat Oy Jylhavaara, Valkaekoski, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; D21H / ;
U.S. Cl.
CPC ...
19296 ; 19304 ;
Abstract
A procedure for controlling the surface mass distribution of a paper web being formed on a dry paper machine, wherein the suction air recirculated to the former is utilized. In procedures of prior art, the surface mass distribution has not been uniform enough. With the aid of the present invention the problem has been solved in that the quantity of air blown to the former is adjusted in the cross-machine direction in order to obtain the desired surface mass distribution.