Patents by Inventor George Weigerstorfer

George Weigerstorfer 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 preparing and detoxifying using liquid rinsing medium
    Patent number: 9914156
    Abstract: The present invention concerns a method for processing and detoxification of a material, especially a thermoplastic material, and for removal of contaminants or impurities from this material, wherein the material is heated under vacuum in at least one receiving tank, mixed and possibly comminuted, and wherein a rinsing medium is introduced into the receiving tank beneath the material level, conducted through at least a partial region of the material, and the rinsing medium enriched or saturated with contaminants is brought out from the receiving tank once more. According to the invention, the quantity of rinsing medium introduced into the receiving tank is less than 0.1 liter per hour per kilogram of material or material throughput per hour, while at the same time the vacuum in the receiving tank is kept constantly below 100 mbar.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: March 13, 2018
    Assignee: EREMA Engineering Recycling Maschinen und Anlagen Gesellschaft m.b.H.
    Inventors: Manfred Hackl, Klaus Feichtinger, Gerhard Wendelin, George Weigerstorfer, James Donaldson
  • METHOD FOR PREPARING AND DETOXIFYING USING LIQUID RINSING MEDIUM
    Publication number: 20160279683
    Abstract: The present invention concerns a method for processing and detoxification of a material, especially a thermoplastic material, and for removal of contaminants or impurities from this material, wherein the material is heated under vacuum in at least one receiving tank, mixed and possibly comminuted, and wherein a rinsing medium is introduced into the receiving tank beneath the material level, conducted through at least a partial region of the material, and the rinsing medium enriched or saturated with contaminants is brought out from the receiving tank once more. According to the invention, the quantity of rinsing medium introduced into the receiving tank is less than 0.1 liter per hour per kilogram of material or material throughput per hour, while at the same time the vacuum in the receiving tank is kept constantly below 100 mbar.
    Type: Application
    Filed: March 24, 2016
    Publication date: September 29, 2016
    Inventors: Manfred Hackl, Klaus Feichtinger, Gerhard Wendelin, George Weigerstorfer, James Donaldson
  • METHOD FOR PREPARING AND DETOXIFYING
    Publication number: 20130087641
    Abstract: The present invention concerns a method for processing and detoxification of a material, especially a thermoplastic material, and for removal of contaminants or impurities from this material, wherein the material is heated under vacuum in at least one receiving tank (1), mixed and possibly comminuted, and wherein a rinsing medium is introduced into the receiving tank (1) beneath the material level, conducted through at least a partial region of the material, and the rinsing medium enriched or saturated with contaminants is brought out from the receiving tank (1) once more.
    Type: Application
    Filed: January 17, 2011
    Publication date: April 11, 2013
    Applicant: EREMA Engineering Recycling Maschinen und
    Inventors: Manfred Hackl, Klaus Feichtinger, Gerhard Wendelin, George Weigerstorfer, James Donaldson