Patents by Inventor Walter Pfandl

Walter Pfandl 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).

  • Method for the re-utilization of an optical
    Patent number: 5762847
    Abstract: An improved optical cable having at least one light waveguide having a coating and other component parts in the form of protective sheaths of plastic material as well as potentially tensile elements and filling compounds. The improved cable being recyclable, since the other component parts contain only polyolefins and small amounts of glass or inorganic fillers, so that the cable can easily be recycled into pellets having the inorganic fillers and glass acting as reinforcing elements.
    Type: Grant
    Filed: January 5, 1996
    Date of Patent: June 9, 1998
    Assignee: Siemens Aktiengesellschaft
    Inventors: Rainer Kamps, Walter Pfandl, Frederic Zapf, Reiner Schneider
  • Elongated optical transmission element
    Patent number: 5761361
    Abstract: An elongated optical transmission element has a plurality of light waveguides which are continuously mechanically connected to one another in various planes to form a structure extending in a longitudinal direction so that the cohesion between waveguides is essentially obtained by connections on the inside of the structure. The structure can be used in an optical and/or electrical lead and is used in optical and/or electrical cables.
    Type: Grant
    Filed: May 1, 1996
    Date of Patent: June 2, 1998
    Assignee: Siemens Aktiengesellschaft
    Inventors: Walter Pfandl, Reiner Schneider
  • Sheathing material for optical fibers, based on polyalkylene terephthalate/polycarbonate
    Patent number: 5621031
    Abstract: The present invention relates to polyalkylene terephthalate/polycarbonate blends stabilized with carbodiimides as a sheathing material for optical fibres.
    Type: Grant
    Filed: July 10, 1995
    Date of Patent: April 15, 1997
    Assignee: Bayer AG
    Inventors: Gerhard Leimann, Friedemann Paul, Rainer Kamps, Gerhard Lange, Walter Pfandl
  • Optical cable having a plurality of light waveguides arranged in a prescribed structure and having different mechanical sensitivies
    Patent number: 5608832
    Abstract: An optical cable comprises a plurality of light waveguides which are arranged at least one group with a prescribed structure. The light waveguides will have different mechanical sensitivities, with the waveguides having a low mechanical sensitivity being in those regions of the structure which have elevated mechanical stressing occurring.
    Type: Grant
    Filed: September 18, 1995
    Date of Patent: March 4, 1997
    Assignee: Siemens Aktiengesellschaft
    Inventors: Walter Pfandl, Reiner Schneider, Waldemar Stoecklein, Clemens Unger, Ernst Opel