Patents by Inventor Herman J. van der Schaaf

Herman J. van der Schaaf 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).

  • Pipe coil cooker
    Patent number: 4840678
    Abstract: A sugar-cooking apparatus of the type having a standing pipe coil surrounded by a heating jacket. The coiled pipe is of flattened cross-section for improved heat transfer. During use, a mixture of sugar, water and additives is passed through the coiled pipe and rapidly heated therein to form a sugar solution.
    Type: Grant
    Filed: March 25, 1985
    Date of Patent: June 20, 1989
    Assignee: B. V. Gerbs. ter Braak
    Inventor: Herman J. van der Schaaf