Patents by Inventor Knut Ringbom

Knut Ringbom 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 drying a coated paper web or the like
    Patent number: 6293031
    Abstract: Method and apparatus for drying a coated paper web (W) or the like web. The apparatus (10) comprises sequentially in the running direction of the web—a turning device (16) arranged on the first side of the web and provided with blow nozzles (20), with which the running direction of the web to be dried is turned in a non-contacting way, and web drying devices (30, 30′) arranged on the first and the second sides of the web, in which the web is dried in a non-contacting manner. The apparatus further comprises a counterpart (18) provided with overpressure nozzles (24), arranged on the second side of the web at the point of the turning device (16), for stabilizing the web run by means of blows generating a local overpressure between the web (W) and the carrier surfaces of the overpressure nozzles (24).
    Type: Grant
    Filed: February 1, 2000
    Date of Patent: September 25, 2001
    Assignee: Metso Paper, Inc.
    Inventors: Knut Ringbom, Richard Solin