Patents by Inventor Louis C. Weiss

Louis C. Weiss 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).

  • Patent number: 4680106
    Abstract: A method for separating components of a mixture containing particles which can be electrically charged from particles which can be only negligibly charged is disclosed. The mixture is fed onto an electric undulating traveling wave contact panel which is energized to a charging potential using A. C. voltage. The voltage is then increased to a separation voltage to effect levitation and movement of the charged particles away from the uncharged particles. Separation is accomplished by cycling the voltage between the separation and charging voltages until the charged particles are moved off the panel and the uncharged particles remain on the surface of the panel. The separated particles can then be collected separately.
    Type: Grant
    Filed: July 31, 1985
    Date of Patent: July 14, 1987
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Louis C. Weiss, Devron P. Thibodeaux, Mary Ann Godshall
  • Patent number: 4534856
    Abstract: A method of separating the components contained in agricultural by-products is disclosed. A set of parallel electrodes encased in a plastic panel and energized by an A.C. power supply is used to create an undulating traveling wave electric field. A voltage charge is first applied to the individual components. The voltage is then increased to effect levitation and movement of the components in opposite directions which results in separation. The voltage is cycled between charging and separating voltages to move the components over a distance for collection and recovery.
    Type: Grant
    Filed: August 30, 1983
    Date of Patent: August 13, 1985
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Louis C. Weiss, Devron P. Thibodeaux