Patents by Inventor Pauli Marttila

Pauli Marttila 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 apparatus for impregnating a continuous fiber bundle wherein a nozzle impinges on the fiber bundle in a chamber
    Patent number: 5084305
    Abstract: The present invention concerns a method and an apparatus for impregnating a continuous fiber bundle or fiber bundles (10) with molten or fluid curing resin in manufacturing fiber reinforced material, the material comprising one or several fiber bundles (10) encircled by matrix resin. The fiber bundles (10) are so conducted to pass across the nozzle opening (13) that the resin runs through the nozzle (11) from a higher pressure zone through the fiber bundle (10) to a lower pressure zone.
    Type: Grant
    Filed: July 6, 1990
    Date of Patent: January 28, 1992
    Assignee: Neste OY
    Inventor: Pauli Marttila