Patents by Inventor Klas Bertilson

Klas Bertilson 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).

  • Plate heat exchanger
    Patent number: 5971065
    Abstract: A plate heat exchanger, which comprises a stack of heat transfer plates (2A; 2B) and is intended for evaporation of a liquid, e.g. refrigerant, has an inlet channel (17A; 17B) for said liquid extending through the plate stack and a separate distribution channel (18A; 18B) also extending through the plate stack. Through first passages (25A; 25B) formed by the heat transfer plates (2A; 2B) the inlet channel (17A; 17B) communicates with the distribution channel (18A; 18B), and through second passages (26A; 26B) also formed by the heat transfer plates (2A; 2B) the distribution channel (18A; 18B) communicates with evaporation flow paths (13A; 13B) defined in alternate plate interspaces between the heat transfer plates (2A; 2B).
    Type: Grant
    Filed: April 23, 1998
    Date of Patent: October 26, 1999
    Assignee: Alfa Laval AB
    Inventors: Klas Bertilson, Alvaro Zorzin