Patents by Inventor Roman J. Harmel

Roman J. Harmel 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).

  • Methods of coating elongated strand material
    Patent number: 5151306
    Abstract: In order to coat successive increments of length of an elongated strand material such as an optical fiber (22), for example, with a marking material, for example, a liquid coating material (40) is circulated through an input section (85) into an inner chamber (71) of a housing (62) and outwardly through an output section (87) to be returned to a reservoir (39). Elongated strand material is advanced through an entry portion into and through the inner chamber wherein it is contacted by the liquid coating material being circulated therethrough. Afterwards, each successive increment of length is advanced through an exit die (73) which causes the liquid coating material to be formed into a layer of predetermined thickness on the elongated strand material.
    Type: Grant
    Filed: November 26, 1990
    Date of Patent: September 29, 1992
    Assignee: AT&T Bell Laboratories
    Inventors: Jack E. Andrews, Roman J. Harmel, Gregory A. Lochkovic, Francis A. Rotoloni