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:
Feb. 21, 2023
Filed:
Feb. 04, 2021
Applicant:
Teknologian Tutkimuskeskus Vtt Oy, Espoo, FI;
Inventors:
Assignee:
Teknologian tutkimuskeskus VTT Oy, Espoo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21F 1/52 (2006.01); D21F 9/00 (2006.01); D21F 3/02 (2006.01); D21F 5/04 (2006.01); D21F 11/00 (2006.01);
U.S. Cl.
CPC ...
D21F 9/003 (2013.01); D21F 1/52 (2013.01); D21F 3/0209 (2013.01); D21F 5/048 (2013.01); D21F 11/002 (2013.01);
Abstract
An apparatus and a method which heat an elongated product in at least two pulses including at least one first pulse wherein the product is pressed for at least 10 ms on a first pressure and at least one second heating and smoothing pulse wherein the product is pressed and/or heated at least for 10 ms on a pressure that is higher than the first pressure. The heating elements being arranged to heat the elongated product so that the heating the heating temperature is at least 80° C. on at least one surface of the elongated product.