Patents by Inventor Manuel Pinto de Novais Paiva

Manuel Pinto de Novais Paiva 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).

  • Process for separating substances of different masses
    Patent number: 4166727
    Abstract: A process for separating substances of different masses, comprising admission of at least two fluids to one end of a duct arranged so as to allow a laminar flow of fluids so admitted, at least one of these fluids being periodically admitted into said duct and being comprised of a mixture of n substances of different masses, in being equal to at least 2, and collecting from the other end of the duct those fractions of the fluid mixture, wherein average relative concentration of at least one of the substances of the mixture of n substances is higher than in said admitted mixture.
    Type: Grant
    Filed: March 8, 1977
    Date of Patent: September 4, 1979
    Inventor: Manuel Pinto de Novais Paiva