Patents Assigned to Densified Solutions, L.L.C.
  • Patent number: 6890437
    Abstract: A waste disposal and recovery system for disposal of expanded polystyrene foam and recovery of a usable resin. The system includes a first tank and a second tank in flow communication. Within the second tank may be a plurality of settlement compartments with a filtration system. An organic solvent is used to dissolve the expanded polystyrene foam which forms a waste solution. The waste solution is directed to the second tank where it is separated into resin and the organic solvent. The solvent may be recycled for use in dissolving more expanded polystyrene foam while the resin may be removed for storage, shipment or sale.
    Type: Grant
    Filed: October 27, 2003
    Date of Patent: May 10, 2005
    Assignee: Densified Solutions, L.L.C.
    Inventors: John W. Rickett, Kevin L. Lyons
  • Publication number: 20040065604
    Abstract: A waste disposal and recovery system for disposal of expanded polystyrene foam and recovery of a usable resin. The system includes a first tank and a second tank in flow communication. Within the second tank may be a plurality of settlement compartments with a filtration system. An organic solvent is used to dissolve the expanded polystyrene foam which forms a waste solution. The waste solution is directed to the second tank where it is separated into resin and the organic solvent. The solvent may be recycled for use in dissolving more expanded polystyrene foam while the resin may be removed for storage, shipment or sale.
    Type: Application
    Filed: October 27, 2003
    Publication date: April 8, 2004
    Applicant: Densified Solutions, L.L.C.
    Inventors: John W. Rickett, Kevin L. Lyons
  • Patent number: 6663773
    Abstract: A waste disposal and recovery system for disposal of expanded polystyrene foam and recovery of a usable resin. The system includes a first tank and a second tank in flow communication. Within the second tank may be a plurality of settlement compartments with a filtration system. An organic solvent is used to dissolve the EPS foam which forms a waste solution. The waste solution is directed to the second tank where it is separated into resin and the organic solvent. The solvent may be recycled for use in dissolving more EPS foam while the resin may be removed for storage, shipment or sale.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: December 16, 2003
    Assignee: Densified Solutions, L.L.C.
    Inventors: John W. Rickett, Kevin L. Lyons