Patents by Inventor Frans Dewulf

Frans Dewulf 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).

  • Patent number: 4927544
    Abstract: A three or optionally four stage process for the continuous removal of a gum phase from triglyceride oil is described in which in a first stage the oil containing a separate gum phase is subjected to centrifugal separation in a first centrifugal separator to yield gums with low oil content and an oil that still contains a fraction of the gums originally present in the feed, in a second stage the oil obtained from the first stage is subjected to centrifugal separation in a second centrifugal separator to yield oil with a further reduced residual gum content and a gum phase with a higher oil content than the gums obtained in the first stage, in a third stage the gum phase obtained in the second stage is recycled into the oil stream fed to the first centrifugal separator and optionally in a fourth stage the oil obtained in the second stage is washed one or more times with water.
    Type: Grant
    Filed: March 14, 1989
    Date of Patent: May 22, 1990
    Assignee: N.V. Vandemoortele International
    Inventors: Martin van Opstal, Frans Dewulf, Bernard Cleenewerck, Ernst Weber