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. 13, 2010
Filed:
Apr. 08, 2003
Applicants:
Seppo Karine, Imatra, FI;
Jari Räsänen, Imatra, FI;
Inventors:
Seppo Karine, Imatra, FI;
Jari Räsänen, Imatra, FI;
Assignee:
Stora Enso Oyj, Helsinki, FI;
Primary Examiner:
Int. Cl.
CPC ...
B31B 1/66 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and equipment for molding an article produced from paperboard or cardboard. Moulding is carried out by a molding tool that mechanically works the board; and to improve its moldability, momentary irradiation on the microwave frequency is exerted on the board. The method applies to the manufacture of packages and disposable containers made of paperboard or cardboard; for example, to the forming of a rolled-up or folded rim around a drinking cup, mug or a container, the forming of a stiffening crease or projection on a paperboard container, or to press molding of paperboard containers or plates.