Patents by Inventor Pauli Sillanpaa

Pauli Sillanpaa 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 the production of pipe
    Patent number: 4952362
    Abstract: A method and apparatus for producing a pipe transports first and second sets of chill moulds respectively along first and second endless paths, the chill moulds of each set being so transported one after another, and the endless paths being positioned such that junction faces of the respective chill moulds of the respective sets are positioned against each other in a pipe moulding zone of the endless paths. So positioning the respective chill moulds of the respective sets also defines outer surfaces thereof that are opposite the junction faces and outer surfaces that extend along edges of the junction faces at least generally in the direction of the transporting of the chill moulds.
    Type: Grant
    Filed: July 6, 1989
    Date of Patent: August 28, 1990
    Assignee: Uponor N.V.
    Inventors: Jyri Jarvenkyla, Pauli Sillanpaa