Patents by Inventor Harald Bertges

Harald Bertges 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).

  • Flexible multicore electrical cable
    Patent number: 7180002
    Abstract: The invention describes a flexible multicore electrical cable with a central supporting member (3), several cores (1) that includes insulated fine-strand conductors and surround the supporting member (3), and a plastic sheath (5), wherein the central supporting member (3) includes a torsionally rigid steel cable (3a), which is provided with an outer layer of insulation (3b). The steel cable (3a) includes a core strand (6), a first course of several strands (7) stranded on the core strand (6), and a second course of several strands (10) stranded on the first course, wherein the direction of lay and/or the length of lay of the strands (10) of the second course is different from the direction of lay and/or the length of lay of the strands (7) of the first course.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: February 20, 2007
    Inventors: Harald Bertges, Heinz-Willi Hamacher, Walter Winkelbauer
  • Flexible multicore electrical cable
    Publication number: 20060131062
    Abstract: The invention describes a flexible multicore electrical cable with a central supporting member (3), several cores (1) that includes insulated fine-strand conductors and surround the supporting member (3), and a plastic sheath (5), wherein the central supporting member (3) includes a torsionally rigid steel cable (3a), which is provided with an outer layer of insulation (3b). The steel cable (3a) includes a core strand (6), a first course of several strands (7) stranded on the core strand (6), and a second course of several strands (10) stranded on the first course, wherein the direction of lay and/or the length of lay of the strands (10) of the second course is different from the direction of lay and/or the length of lay of the strands (7) of the first course.
    Type: Application
    Filed: October 26, 2005
    Publication date: June 22, 2006
    Inventors: Harald Bertges, Heinz-Willi Hamacher, Walter Winkelbauer