Patents by Inventor Ludwig Jachimowicz

Ludwig Jachimowicz 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).

  • D-shield telephone cables
    Patent number: 4085284
    Abstract: This internally shielded telephone cable provides more efficient shielding for meeting near-end crosstalk requirements in carrier systems having expanded channel capacity and increase in equivalent frequency from 772 kHz to 1.576 MHz or higher. The improved shielding uses tapes bent into configurations that obtain greater shielding area from a single tape, and constructions that are less expensive than prior art and produce a mechanically stronger and more unitary cable structure.
    Type: Grant
    Filed: August 10, 1976
    Date of Patent: April 18, 1978
    Assignee: General Cable Corporation
    Inventors: Jerzy A. Olszewski, Ludwig Jachimowicz