Patents by Inventor Karen L. Bennett

Karen L. Bennett 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).

  • Bead and process for removing dissolved metal contaminants
    Patent number: 6843922
    Abstract: A bead is provided which comprises or consists essentially of activated carbon immobilized by crosslinked poly(carboxylic acid) binder, sodium silicate binder, or polyamine binder. The bead is effective to remove metal and other ionic contaminants from dilute aqueous solutions. A method of making metal-ion sorbing beads is provided, comprising combining activated carbon, and binder solution (preferably in a pin mixer where it is whipped), forming wet beads, and heating and drying the beads. The binder solution is preferably poly(acrylic acid) and glycerol dissolved in water and the wet beads formed from such binder solution are preferably heated and crosslinked in a convection oven.
    Type: Grant
    Filed: May 7, 2002
    Date of Patent: January 18, 2005
    Assignee: Ricura Technologies, LLC
    Inventors: Bobby L. Summers, Jr., Karen L. Bennett, Scott A. Foster
  • Bead and process for removing dissolved metal contaminants
    Patent number: 6395678
    Abstract: A bead is provided which comprises or consists essentially of activated carbon immobilized by crosslinked poly(carboxylic acid) binder, sodium silicate binder, or polyamine binder. The bead is effective to remove metal and other ionic contaminants from dilute aqueous solutions. A method of making metal-ion sorbing beads is provided, comprising combining activated carbon, and binder solution (preferably in a pin mixer where it is whipped), forming wet beads, and heating and drying the beads. The binder solution is preferably poly(acrylic acid) and glycerol dissolved in water and the wet beads formed from such binder solution are preferably heated and crosslinked in a convection oven.
    Type: Grant
    Filed: September 1, 1999
    Date of Patent: May 28, 2002
    Assignee: Aero-Terra-Aqua Technologies Corporation
    Inventors: Bobby L. Summers, Jr., Karen L. Bennett, Scott A. Foster