Patents by Inventor Martin Collander

Martin Collander 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).

  • Evaporation apparatus for evaporation of liquids
    Patent number: 6210455
    Abstract: An evaporation apparatus for evaporation of, for example, spent liquor from pulp cooking. The apparatus has a vertical cylinder that has evaporation surfaces disposed therein. An outlet opening is defined in a widened part of the cylinder to receive driven-off steam. A skirt is disposed in the cylinder and surrounds the evaporated liquid and driven-off steam and has a diameter that is smaller than a diameter of the widened part. The skirt has an open bottom and a skirt opening is defined in a portion of the skirt that is facing away from the outlet opening.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: April 3, 2001
    Assignee: Kvaerner Pulping AB
    Inventors: Lars Olausson, Michael Thiede, Olle Wennberg, Anders Wernqvist, Martin Collander