Patents Assigned to Klas C. Haglid, Building Performance Equipment
  • Patent number: 7497247
    Abstract: The heat exchanger is made economically by using thermoplastic sheets with hollow tubes and spacers between the sheets and fusing the edges of the sheets together to form an integral housing. Preferably, the heat exchanger is an opposed-flow heat-exchanger giving improved heat-transfer efficiency.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: March 3, 2009
    Assignee: Klas C. Haglid, Building Performance Equipment
    Inventor: Klas C. Haglid