Patents by Inventor Vesa Tapani Huovila

Vesa Tapani Huovila has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and board machine for manufacturing a paperboard web
    Patent number: 5935382
    Abstract: In order to meet higher demands for the properties of paperboard products an improved method and machine for the manufacture of paperboard are proposed according to the present invention in which a core of a paperboard web is formed in a second forming unit from a stock with a consistency of 1.5-6.0% being supplied to the fourdrinier wire of a fourdrinier former carrying a back layer formed previously in a first forming unit, from a headbox for high consistency stock and being dewatered upon being enclosed between the fourdrinier wire and a top wire in said second forming unit, and in which an underliner is formed in a third forming unit of stock with a consistency of 0.3-1.4% being supplied to the fourdrinier wire carrying the back layer and core, from a headbox for stock of low consistency.
    Type: Grant
    Filed: May 30, 1997
    Date of Patent: August 10, 1999
    Assignee: Valmet-Karlstad AB
    Inventors: Vesa Tapani Huovila, Nils Borje Sandgren