Patents by Inventor Rüdiger Wittenberg

Rüdiger Wittenberg 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: 10450448
    Abstract: PVC-free polymer compound for producing seals containing scavengers for screw caps, in particular twist crown corks, characterized in that the Shore A hardness of the polymer compound lies between 50 and 90 and, in a compression set test analogous to ASTM D395-97, Method B, the polymer compound has a compression set of between 30% and 90% after it has been left for 22 hours at 70° C. under a compression of 25%.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: October 22, 2019
    Assignee: Actega DS GmbH
    Inventors: William David Coulter, Rüdiger Wittenberg
  • Publication number: 20170327673
    Abstract: PVC-free polymer compound for producing seals containing scavengers for screw caps, in particular twist crown corks, characterized in that the Shore A hardness of the polymer compound lies between 50 and 90 and, in a compression set test analogous to ASTM D395-97, Method B, the polymer compound has a compression set of between 30% and 90% after it has been left for 22 hours at 70° C. under a compression of 25%.
    Type: Application
    Filed: April 25, 2017
    Publication date: November 16, 2017
    Applicant: Actega DS GmbH
    Inventors: William David COULTER, Rüdiger WITTENBERG
  • Patent number: 9708478
    Abstract: The invention relates to a polymer compound for a PVC-free sealing system for container closures, which is equipped with at least one oxygen-consuming compound, in which the Shore D hardness of the polymer compound is at least 20 and the polymer compound has a melt flow index (190° C., 5 kg) of at least 5.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: July 18, 2017
    Assignee: ACTEGA DS GMBH
    Inventors: Waldemar Eichler, Rüdiger Wittenberg
  • Patent number: 9662813
    Abstract: The invention relates to a method for producing a vessel closure for vessels comprising an opening that is to be closed by the vessel closure, an inner diameter of more than two cm and surrounds a polymer-based sealing element that is arranged in the vessel closure in such a manner that is sealingly rests on the opening of the vessel in the closed state. A polymer material becomes sufficiently free-flowing by warming and is applied to the vessel closure in the region of the sealing element that is to be produced, and optionally, is mechanically formed into the desired shape which it maintains after cooling. The invention also relates to a metal or plastic vessel closures for vessels for receiving drinks or food, and comprises a sealing insert, the material thereof being selected so that the migration of material components into the drink or food, that are a health risk, is prevented.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: May 30, 2017
    Assignee: ACTEGA DS GMBH
    Inventors: Christiane Poel, Rüdiger Wittenberg, Georg Schlenk
  • Patent number: 9540155
    Abstract: The invention relates to a polymer compound for a sealing insert for a container closure, in particular for fat-containing filling materials, which has a composition such that the migration of constituents of the compound into the filling material is reduced, characterized in that the Shore A hardness of the polymer compound is between 45 and 95 and in the compressive deformation test analogous to ASTM D395-97 Method B at 70 DEG C the polymer compound exhibits a compression set of 30-90%.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: January 10, 2017
    Assignee: ACTEGA DS GMBH
    Inventors: Christiane Poel, Georg Schlenk, Rüdiger Wittenberg
  • Publication number: 20160152808
    Abstract: The invention relates to a polymer compound for a PVC-free sealing system for container closures, which is equipped with at least one oxygen-consuming compound, in which the Shore D hardness of the polymer compound is at least 20 and the polymer compound has a melt flow index (190° C., 5 kg) of at least 5.
    Type: Application
    Filed: January 8, 2016
    Publication date: June 2, 2016
    Inventors: Waldemar EICHLER, Rüdiger WITTENBERG
  • Publication number: 20150061184
    Abstract: The invention relates to a method for producing a vessel closure for vessels comprising an opening that is to be closed by the vessel closure, an inner diameter of more than two cm and surrounds a polymer-based sealing element that is arranged in the vessel closure in such a manner that is sealingly rests on the opening of the vessel in the closed state. A polymer material becomes sufficiently free-flowing by warming and is applied to the vessel closure in the region of the sealing element that is to be produced, and optionally, is mechanically formed into the desired shape which it maintains after cooling. The invention also relates to a metal or plastic vessel closures for vessels for receiving drinks or food, and comprises a sealing insert, the material thereof being selected so that the migration of material components into the drink or food, that are a health risk, is prevented.
    Type: Application
    Filed: November 18, 2014
    Publication date: March 5, 2015
    Inventors: Christiane POEL-ASENDORF, Rüdiger WITTENBERG, Georg SCHLENK
  • Patent number: 8916078
    Abstract: The invention relates to a method for producing a vessel closure for vessels comprising an opening that is to be closed by the vessel closure, an inner diameter of more than two cm and surrounds a polymer-based sealing element that is arranged in the vessel closure in such a manner that it sealingly rests on the opening of the vessel in the closed state. A polymer material becomes sufficiently free-flowing by warming and is applied to the vessel closure in the region of the sealing element that is to be produced, and optionally, is mechanically formed into the desired shape which it maintains after cooling. The invention also relates to a metal or plastic vessel closures for vessels for receiving drinks or food, and comprises a sealing insert, the material thereof being selected so that the migration of material components into the drink or food, that are a health risk, is prevented.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: December 23, 2014
    Assignee: Actega DS GmbH
    Inventors: Christiane Poel-Asendorf, Rüdiger Wittenberg, Georg Schlenk
  • Publication number: 20130206770
    Abstract: The invention relates to a polymer compound for a sealing insert for a container closure, in particular for fat-containing filling materials, which has a composition such that the migration of constituents of the compound into the filling material is reduced, characterised in that the Shore A hardness of the polymer compound is between 45 and 95 and in the compressive deformation test analogous to ASTM D395-97 Method B at 70 DEG C the polymer compound exhibits a compression set of 30-90%.
    Type: Application
    Filed: November 20, 2009
    Publication date: August 15, 2013
    Applicant: Actega DS GmbH
    Inventors: Christiane Poel, Georg Schlenk, Rüdiger Wittenberg
  • Publication number: 20100295211
    Abstract: The invention relates to a method for producing a vessel closure for vessels comprising an opening that is to be closed by the vessel closure, an inner diameter of more than two cm and surrounds a polymer-based sealing element that is arranged in the vessel closure in such a manner that is sealingly rests on the opening of the vessel in the closed state. A polymer material becomes sufficiently free-flowing by warming and is applied to the vessel closure in the region of the sealing element that is to be produced, and optionally, is mechanically formed into the desired shape which it maintains after cooling. The invention also relates to a metal or plastic vessel closures for vessels for receiving drinks or food, and comprises a sealing insert, the material thereof being selected so that the migration of material components into the drink or food, that are a health risk, is prevented.
    Type: Application
    Filed: November 7, 2008
    Publication date: November 25, 2010
    Applicant: ACTEGA DS GMBH
    Inventors: Christiane Poel-Asendorf, Rüdiger Wittenberg, Georg Schlenk