Patents by Inventor Karl-Erik Bohlin

Karl-Erik Bohlin 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).

  • Patent number: 5225269
    Abstract: A needled press felt for dewatering of cellulose pulp in a paper making machine consists of a multi layer base fabric having longitudinal and transversal threads. In order to improve the dewatering capability of the press felt and making it easy to assemble, the dewatering side of the press felt consists of layer of coarse yarn (3), which has a weight per unit of length, which is at least twice as great as the one of the remaining parallel yarns (1, 2) of the base fabric. Further a seam which can be opened is arranged transversally to the running direction of the felt in the paper making machine.
    Type: Grant
    Filed: June 15, 1992
    Date of Patent: July 6, 1993
    Assignee: Scandiafelt AB
    Inventor: Karl-Erik Bohlin