Patents by Inventor Jacques P. Roodenrijs

Jacques P. Roodenrijs 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).

  • Multi-stage counter-current concentration system and method
    Patent number: 4459144
    Abstract: A system and method for concentrating aqueous beverages such as fruit juices, beer, wine, vinegar, tea, coffee, and the like in which a slurry of feed liquid and seed crystals is formed in a scraped surface heat exchanger of a first stage and supplied to a recrystallizer where larger crystals grow, the liquid in the recrystallizer being withdrawn with part recirculated to the heat exchanger of a succeeding stage. The slurry of larger crystals in the recrystallizer of the first stage is also withdrawn and the crystals separated in a wash column. The larger crystals grown in the second stage recrystallizer are supplied to the recrystallizer of the first stage where the seed crystals melt and reform on the larger crystals and the larger crystals from the third stage are similarly supplied to the recrystallizer of the second stage.
    Type: Grant
    Filed: February 18, 1982
    Date of Patent: July 10, 1984
    Assignee: Grasso's Koniklijke Machine Fabrieken, N.V.
    Inventors: Willem Van Pelt, Jacques P. Roodenrijs
  • Multi-stage counter-current concentrating method
    Patent number: 4316368
    Abstract: A system and method for concentrating aqueous beverages such as fruit juices, beer, wine, vinegar, tea, coffee, and the like in which a slurry of feed liquid and seed crystals is formed in a scraped surface heat exchanger of a first stage and supplied to a recrystallizer where larger crystals grow, the liquid in the recrystallizer being withdrawn with part recirculated to the heat exchanger of a succeeding stage. The slurry of larger crystals in the recrystallizer of the first stage is also withdrawn and the crystals separated in a wash column. The larger crystals grown in the second stage recrystallizer are supplied to the recrystallizer of the first stage where the seed crystals melt and reform on the larger crystals and the larger crystals from the third stage are similarly supplied to the recrystallizer of the second stage.
    Type: Grant
    Filed: October 30, 1980
    Date of Patent: February 23, 1982
    Assignee: Grasso's Koniklijke Machinefabrieken, N.V.
    Inventors: Willem Van Pelt, Jacques P. Roodenrijs