Patents by Inventor Jens C. Engvad

Jens C. Engvad 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).

  • Crystallizer
    Patent number: 4202859
    Abstract: A crystallizer which comprises a vertically mounted elongated container that contains at least one bundle of spaced cooling pipes extending longitudinally of the container and a wing attached to a shaft extending longitudinally of the container, the shaft being rotated so as to oscillate about its axis and thus force crystallizable liquid forwards and backwards through the spaces between the cooling pipes to cool the liquid and thus cause a crystallization thereof.
    Type: Grant
    Filed: September 27, 1977
    Date of Patent: May 13, 1980
    Assignee: Aktieselskabet de Danske Sukkerfabrikker
    Inventors: Rud F. Madsen, Jens H. Jensen, Jens C. Engvad