Patents by Inventor Pavel Hasal

Pavel Hasal 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).

  • Method of circulation of a liquid phase through a solid phase particularly for biocatalytical reactions and a device for realization thereof
    Patent number: 4683062
    Abstract: The method of circulation according to the invention consists in causing a part of the liquid part to rotate whereby centrifugal forces causes the rotating part of the liquid phase to form a rotating vortical liquid spindle that exerts a suction effect. The liquid to be circulated is then pumped into the spindle by suction, passes through a cavity destined for deposition of solid phase, said cavity being positioned in the space of the spindle, whereafter the liquid passes to the upper part of the spindle and is drawn back into a liquid phase container.
    Type: Grant
    Filed: December 2, 1985
    Date of Patent: July 28, 1987
    Assignee: Ceskoslovenska akademie ved
    Inventors: Premysl Krovak, Vladimir Behunek, Vladimir Vojtisek, Miroslav Salvet, Pavel Hasal