Patents by Inventor Ralf Lauer

Ralf Lauer 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-type heat exchanger with single-walled and double-walled heat transfer plates
    Patent number: 6973961
    Abstract: The invention relates to a plate-type heat exchanger (20) comprising a stack (21) of heat exchanger plates which are permanently interconnected and between which separate flow passage spaces are defined for at least two heat exchange fluids. One part of the heat exchanger plates is designed as single-walled heat exchanger plates each, having one plate member, while another part of the heat exchanger plates is designed as double-walled heat exchanger plates each, having two plate members.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: December 13, 2005
    Assignee: WTT-Wilchwitzer Thermo-Technik GmbH
    Inventors: Peter Rehberg, Ralf Lauer
  • Plate-type heat exchanger with single-walled and double-walled heat transfer plates
    Publication number: 20040256083
    Abstract: A plate-type heat exchanger with single-walled and double-walled heat transfer plates. The invention relates to a plate-type heat exchanger (20) comprising a stack (21) of heat exchanger plates which are permanently interconnected and between which separate flow passage spaces are defined for at least two heat exchange fluids. One part of the heat exchanger plates is designed as single-walled heat exchanger plates each, having one plate member, while another part of the heat exchanger plates is designed as double-walled heat exchanger plates each, having two plate members.
    Type: Application
    Filed: May 7, 2004
    Publication date: December 23, 2004
    Inventors: Peter Rehberg, Ralf Lauer