Patents by Inventor Alain D. Grasmick

Alain D. Grasmick 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 for flocculating microscopic particles in suspension in a liquid and application to the collection of phytoplankton microalgae and zooplankton and for the purification of used water
    Patent number: 4515697
    Abstract: Method for flocculating microscopic particles in suspension in a liquid and application to the collection of phytoplankton microalgae and of zooplankton and for the purification of used water.One passes a first liquid comprising microscopic particles in suspension through a fixed granular layer (2) up to partial or complete clogging of said granular material by said microscopic particles; one unclogs at least partially said granular material in a fixed layer by passing a second liquid therethrough, moving in the same direction as the first liquid, but at a higher speed than the first; and one recovers below said layer flocculated aggregates of said microscopic particles and a liquid outflow (6).
    Type: Grant
    Filed: January 27, 1983
    Date of Patent: May 7, 1985
    Assignee: David Gozal
    Inventors: Samuel Elmaleh, Alain D. Grasmick