Patents by Inventor Kirsten Langfeld

Kirsten Langfeld 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: 11620810
    Abstract: A system (100) for the identification of the formation of a burning droplet (9) of a material of a fiber optic cable (3) during cable burn testing comprises a data processing device (11) for processing respective image data of a plurality of image samples of an image stream. The data processing device (11) is configured to execute at least a processing step of preprocessing each of the recorded image samples of the image stream to generate a respective preprocessed image sample for each of the recorded image samples such that areas of the recorded image samples disturbing the identification of burning droplets (9) are masked out in the respective preprocessed image sample, and a step of identifying a burning droplet (9) in each of the preprocessed image samples by evaluating a pixel color property of a pixel of each preprocessed image sample.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: April 4, 2023
    Assignee: CORNING RESEARCH & DEVELOPMENT CORPORATION
    Inventors: Robert Klares, Kirsten Langfeld, Thomas Meyer, Waldemar Stöcklein, Uwe Zymnossek
  • Patent number: 11579388
    Abstract: An optical fiber cable comprises a cable core including at least one optical transmission element to transfer light, and a cable jacket surrounding the cable core. The cable jacket is embodied as a multilayered structure having a first sheath layer and at least a second sheath layer being surrounded by the first sheath layer. The material of the first and the second sheath layer is halogen free. The material of the first sheath layer and the material of the second sheath layer have a different flame retardant additive providing different flame retardant mechanisms.
    Type: Grant
    Filed: January 7, 2022
    Date of Patent: February 14, 2023
    Assignee: CORNING RESEARCH & DEVELOPMENT CORPORATION
    Inventors: Emanuela Gallo, Michael Alexander Heinz, Tomasz Kazmierczak, Kirsten Langfeld
  • Publication number: 20220164591
    Abstract: A system (100) for the identification of the formation of a burning droplet (9) of a material of a fiber optic cable (3) during cable burn testing comprises a data processing device (11) for processing respective image data of a plurality of image samples of an image stream. The data processing device (11) is configured to execute at least a processing step of preprocessing each of the recorded image samples of the image stream to generate a respective preprocessed image sample for each of the recorded image samples such that areas of the recorded image samples disturbing the identification of burning droplets (9) are masked out in the respective preprocessed image sample, and a step of identifying a burning droplet (9) in each of the preprocessed image samples by evaluating a pixel color property of a pixel of each preprocessed image sample.
    Type: Application
    Filed: November 10, 2021
    Publication date: May 26, 2022
    Inventors: Robert Klares, Kirsten Langfeld, Thomas Meyer, Waldemar Stöcklein, Uwe Zymnossek
  • Publication number: 20220128784
    Abstract: An optical fiber cable comprises a cable core including at least one optical transmission element to transfer light, and a cable jacket surrounding the cable core. The cable jacket is embodied as a multilayered structure having a first sheath layer and at least a second sheath layer being surrounded by the first sheath layer. The material of the first and the second sheath layer is halogen free. The material of the first sheath layer and the material of the second sheath layer have a different flame retardant additive providing different flame retardant mechanisms.
    Type: Application
    Filed: January 7, 2022
    Publication date: April 28, 2022
    Inventors: Emanuela Gallo, Michael Alexander Heinz, Tomasz Kazmierczak, Kirsten Langfeld
  • Patent number: 11237347
    Abstract: An optical fiber cable comprises a cable core including at least one optical transmission element to transfer light, and a cable jacket surrounding the cable core. The cable jacket is embodied as a multilayered structure having a first sheath layer and at least a second sheath layer being surrounded by the first sheath layer. The material of the first and the second sheath layer is halogen free. The material of the first sheath layer and the material of the second sheath layer have a different flame retardant additive providing different flame retardant mechanisms.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: February 1, 2022
    Assignee: CORNING RESEARCH & DEVELOPMENT CORPORATION
    Inventors: Emanuela Gallo, Michael Alexander Heinz, Tomasz Kazmierczak, Kirsten Langfeld
  • Publication number: 20210055493
    Abstract: An optical fiber cable comprises a cable core including at least one optical transmission element to transfer light, and a cable jacket surrounding the cable core. The cable jacket is embodied as a multilayered structure having a first sheath layer and at least a second sheath layer being surrounded by the first sheath layer. The material of the first and the second sheath layer is halogen free. The material of the first sheath layer and the material of the second sheath layer have a different flame retardant additive providing different flame retardant mechanisms.
    Type: Application
    Filed: September 8, 2020
    Publication date: February 25, 2021
    Inventors: Emanuela Gallo, Michael Alexander Heinz, Tomasz Kazmierczak, Kirsten Langfeld
  • Patent number: 10538653
    Abstract: A flame retardant compound is provided. The flame retardant compound includes a polymer base resin, a carbonific host compound, and a guest compound including at least one atom of a transition metal. The carbonific host compound and the guest compound form a host-guest complex, and the host-guest complex acts to inhibit at least one of smoke release and smoke formation when exposed to heat. The host-guest complex is distributed within the polymer base resin. An intumescent flame retardant compound is also provided. The intumescent flame retardant compound includes a base resin, an acid donor, a spumific agent, a cyclodextrin host compound, and a guest compound including at least one atom of molybdenum. The cyclodextrin host compound and the guest compound form a host-guest complex. The acid donor, carbonific host compound, and spumific agent react when exposed to a temperature above 280° C. to form a foam.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: January 21, 2020
    Assignee: CORNING OPTICAL COMMUNICATIONS LLC
    Inventors: Dayue Jiang, Kirsten Langfeld, Brandon Robert Williamson
  • Publication number: 20190382565
    Abstract: A flame retardant compound is provided. The flame retardant compound includes a polymer base resin, a carbonific host compound, and a guest compound including at least one atom of a transition metal. The carbonific host compound and the guest compound form a host-guest complex, and the host-guest complex acts to inhibit at least one of smoke release and smoke formation when exposed to heat. The host-guest complex is distributed within the polymer base resin. An intumescent flame retardant compound is also provided. The intumescent flame retardant compound includes a base resin, an acid donor, a spumific agent, a cyclodextrin host compound, and a guest compound including at least one atom of molybdenum. The cyclodextrin host compound and the guest compound form a host-guest complex. The acid donor, carbonific host compound, and spumific agent react when exposed to a temperature above 280° C. to form a foam.
    Type: Application
    Filed: August 28, 2019
    Publication date: December 19, 2019
    Inventors: Dayue Jiang, Kirsten Langfeld, Brandon Robert Williamson
  • Patent number: 10428209
    Abstract: A flame retardant compound is provided. The flame retardant compound includes a polymer base resin, a carbonific host compound, and a guest compound including at least one atom of a transition metal. The carbonific host compound and the guest compound form a host-guest complex, and the host-guest complex acts to inhibit at least one of smoke release and smoke formation when exposed to heat. The host-guest complex is distributed within the polymer base resin. An intumescent flame retardant compound is also provided. The intumescent flame retardant compound includes a base resin, an acid donor, a spumific agent, a cyclodextrin host compound, and a guest compound including at least one atom of molybdenum. The cyclodextrin host compound and the guest compound form a host-guest complex. The acid donor, carbonific host compound, and spumific agent react when exposed to a temperature above 280° C. to form a foam.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: October 1, 2019
    Assignee: Corning Optical Communications LLC
    Inventors: Dayue Jiang, Kirsten Langfeld, Brandon Robert Williamson
  • Publication number: 20180265684
    Abstract: A flame retardant compound is provided. The flame retardant compound includes a polymer base resin, a carbonific host compound, and a guest compound including at least one atom of a transition metal. The carbonific host compound and the guest compound form a host-guest complex, and the host-guest complex acts to inhibit at least one of smoke release and smoke formation when exposed to heat. The host-guest complex is distributed within the polymer base resin. An intumescent flame retardant compound is also provided. The intumescent flame retardant compound includes a base resin, an acid donor, a spumific agent, a cyclodextrin host compound, and a guest compound including at least one atom of molybdenum. The cyclodextrin host compound and the guest compound form a host-guest complex. The acid donor, carbonific host compound, and spumific agent react when exposed to a temperature above 280° C. to form a foam.
    Type: Application
    Filed: May 18, 2018
    Publication date: September 20, 2018
    Inventors: Dayue Jiang, Kirsten Langfeld, Brandon Robert Williamson
  • Patent number: 8507398
    Abstract: Catalysts for metathesis reactions, in particular for the metathesis of nitrile rubber, are provided.
    Type: Grant
    Filed: August 18, 2008
    Date of Patent: August 13, 2013
    Assignee: LANXESS Deutschland GmbH
    Inventors: Ludek Meca, Lubica Triscikova, Heinz Berke, Kirsten Langfeld, Martin Schneider, Oskar Nuyken, Werner Obrecht
  • Publication number: 20090076226
    Abstract: Novel catalysts for metathesis reactions, in particular for the metathesis of nitrile rubber, are provided.
    Type: Application
    Filed: August 18, 2008
    Publication date: March 19, 2009
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Ludek Meca, Lubica Triscikova, Heinz Berke, Kirsten Langfeld, Martin Schneider, Oskar Nuyken, Werner Obrecht