Patents by Inventor Walter Striedieck

Walter Striedieck 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).

  • Method of breaking foam, and arrangement for the same
    Patent number: 4931072
    Abstract: In a method and an arrangement for breaking a foam, especially in installation for wet chemical treatment of printed circuit boards with stations in which a treatment liquid is sprayed in a working plane onto a substrate to be treated and from where it is discharged into a supply tank located underneath, a produced foam is aspirated from a supply tank, and the aspirated foam is passed through at least one chamber which contains filling bodies on which foam bubbles burst on contact therewith.
    Type: Grant
    Filed: October 13, 1988
    Date of Patent: June 5, 1990
    Assignee: Schering Aktiengesellschaft
    Inventor: Walter Striedieck