Patents by Inventor Erik Albert Nykopp

Erik Albert Nykopp 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: 3970514
    Abstract: A combination-paper machine, especially one for the continuous manufacture of thick paper, cardboard or the like, is disclosed as having two perforated cylinders which form a combining space or slit between them, devices for feeding pulp suspension onto the perforated cylinders prior to the combining point, whereby an endless wire is guided along at least that surface of each perforated cylinders which is between the pulp suspension feeding point and the combining point, the pulp suspension feeding devices including two roof-like upper lips which cover at least part of the wire-covered surface of each perforated cylinder prior to the combining point. The roof-like upper lips are mutually separate and independent, the combining space is slightly greater than the thickness of the completed web, and after the combining point both the wires are guided to run over a certain distance along the surface of one and the same perforated cylinder.
    Type: Grant
    Filed: February 4, 1975
    Date of Patent: July 20, 1976
    Assignee: Oy Tampella AB
    Inventor: Erik Albert Nykopp