Patents by Inventor Andreas Rietz

Andreas Rietz 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: 6825419
    Abstract: An electrical cable (K) has at least two strands (1) consisting of insulated conductors (2) stranded together. Insulation on the strands (1) consists of an inner layer in contact with the conductor, and which is softer than an outer layer. The strands (1) are surrounded by an inner sheathing (6). The cable (K) also has an electric shield (7) and an outer sheathing (8). A separator layer (5) is between the strands (1) and the inner sheathing (6), consisting of an inner layer (6a, 6b) fixedly joined together with an outer layer (6b). The inner layer (6a) facing the strands (1) is softer than the outer layer (6b), having an approximately circular peripheral surface and in firm contact with the separator layer (5) or the strands (1). The electric shield (7) consists of at least one essentially closed tubular metallic layer and a stranded layer and/or braiding of metallic wires in contact with the metallic layer.
    Type: Grant
    Filed: September 10, 2003
    Date of Patent: November 30, 2004
    Assignee: Nexans
    Inventors: Ferdinand Grögl, Andreas Rietz, Thomas Mann
  • Publication number: 20040050582
    Abstract: An electrical cable (K) has at least two strands (1) consisting of insulated conductors (2) stranded together. Insulation on the strands (1) consists of an inner layer in contact with the conductor, and which is softer than an outer layer. The strands (1) are surrounded by an inner sheathing (6). The cable (K) also has an electric shield (7) and an outer sheathing (8). A separator layer (5) is between the strands (1) and the inner sheathing (6), consisting of an inner layer (6a, 6b) fixedly joined together with an outer layer (6b). The inner layer (6a) facing the strands (1) is softer than the outer layer (6b), having an approximately circular peripheral surface and in firm contact with the separator layer (5) or the strands (1). The electric shield (7) consists of at least one essentially closed tubular metallic layer and a stranded layer and/or braiding of metallic wires in contact with the metallic layer.
    Type: Application
    Filed: September 10, 2003
    Publication date: March 18, 2004
    Applicant: NEXANS
    Inventors: Ferdinand Grogl, Andreas Rietz, Thomas Mann
  • Patent number: 6649845
    Abstract: An elongate object (e.g., a cable) with at least one transmission element arranged in a core thereof, in which an outer sheath (3) of insulation material is applied over the core. To achieve specific properties of the sheath (3), the sheath is provided with a coating (4) of a cross-linkable insulating material, which is very thin compared to the thickness of the sheath, and the individual properties of which are adjusted to the particular application of the object.
    Type: Grant
    Filed: September 19, 2001
    Date of Patent: November 18, 2003
    Assignee: Nexans
    Inventors: Friedrich Mueller, Gilles Widawski, Andreas Rietz
  • Publication number: 20030212180
    Abstract: A method of manufacturing a compound based on a thermoplastic, which may be cross-linked through irradiation using light lying in the ultraviolet range, is indicated. In this case, at least one photoinitiator and one cross-linking agent are added to a thermoplastic base material. To manufacture the compound, 0.2 to 3 parts of an alkyl benzophenone and/or a derivative thereof as a photoinitiator and 0.2 to 3 parts of a cross-linking agent and 0.1 to 5 parts stabilizers are added to 100 parts base material.
    Type: Application
    Filed: February 21, 2003
    Publication date: November 13, 2003
    Applicant: NEXANS
    Inventors: Andreas Rietz, Friedrich Muller, Susanne Brix
  • Publication number: 20020043393
    Abstract: An elongate object (e.g., a cable) with at least one transmission element arranged in a core thereof, in which an outer sheath (3) of insulation material is applied over the core. To achieve specific properties of the sheath (3), the sheath is provided with a coating (4) of a cross-linkable insulating material, which is very thin compared to the thickness of the sheath, and the individual properties of which are adjusted to the particular application of the object.
    Type: Application
    Filed: September 19, 2001
    Publication date: April 18, 2002
    Applicant: NEXANS
    Inventors: Friedrich Mueller, Gilles Widawski, Andreas Rietz