Patents by Inventor Gerd Harenslak

Gerd Harenslak 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).

  • Controlling rapping cycle
    Patent number: 4836146
    Abstract: The present invention is directed to a method and apparatus for controlling rapping of heat exchanging surfaces based on the heat transfer coefficient of the exchanger systems.
    Type: Grant
    Filed: May 19, 1988
    Date of Patent: June 6, 1989
    Assignee: Shell Oil Company
    Inventors: Paul F. Russell, Egon L. Doering, Clifford C. Segerstrom, Jacob H. Stil, Gerd Harenslak, Matheus M. van Kessel