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, 1996
Filed:
Feb. 24, 1994
Antti Ilmarinen, Jyva/ skyla/, FI;
Heikki Ilvespaa/, Jyva/ skyla/, FI;
Antti Kuhasalo, Jyva/ skyla/, FI;
Jouko Yli-Kauppila, Muurame, FI;
Pertti Heikkila/, Raisio, FI;
Iikka Jokioinen, Lieto, FI;
Matti Korpela, Turku, FI;
Henrik Petterson, Myna/ ma/ ki, FI;
Mikko Karvinen, Vihtavuori, FI;
Va/ ino/ Sailas, Vaajakoski, FI;
Pekka Taskinen, Jyva/ skyla/, FI;
Dick Parker, Cape Elizabeth, ME (US);
Valmet Paper Machinery, Inc., Helsinki, FI;
Abstract
A method and device for drying a paper web wherein the paper web is supported on a drying wire without long open draws of the web. The paper web is contact-dried by pressing it with the drying wire onto a face of a contact-drying cylinder whose diameter is greater than about 1.5 m on a sector b whose magnitude is greater than about 180.degree.. The web is evaporation-dried as blowing-on drying and/or as through-drying by means of high-velocity drying-gas jets applied to the web on the drying wire on the face of the following large-diameter cylinder whose diameter is greater than about 2 m on a sector a having a magnitude greater than about 180.degree. while the web is on the side of the outside curve. The web to be dried is passed over a sector c of the suction roll which is subjected to negative pressure while the web is supported on the drying wire at the side of the outside curve. The magnitude of the sector of the suction roll has a magnitude greater than about 160.degree. and the diameter of the suction roll is less than the diameter of the contact-drying cylinder.