Patents by Inventor Cornelis J. Van Der Burg

Cornelis J. Van Der Burg 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).

  • Vaccum distillation system
    Patent number: 5049240
    Abstract: Vacuum distillation system which has a vacuum distillation column (1) having a column inlet (6), a bottom outlet (8) and a top outlet (10), a furnace (2) provided with a heat-exchange tube (27) having a tube inlet (28) and a tube outlet (29), and a connecting conduit (3) extending between the tube outlet (29) and the column inlet (6), wherein the inner diameter of the heat-exchange tube (27) increases along the length of the heat-exchange tube (27) to between 2.4 and three times the inner diameter of the tube inlet (28), and wherein the inner diameter of the connecting conduit (3) gradually increases along the length of the connecting conduit (3) to between 2.5 and 5.4 times the inner diameter of the tube outlet (29).
    Type: Grant
    Filed: February 7, 1990
    Date of Patent: September 17, 1991
    Assignee: Shell Oil Company
    Inventors: Johannes A. Hamer, Cornelis J. Van Der Burg, Dirk Kanbier, Pieter Van Der Heijden