Patents by Inventor Robert S. Aull

Robert S. Aull 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).

  • High fiber count optical fiber cable with buffer tubes around central strength member
    Patent number: 6870995
    Abstract: Optical fiber cable with a central strength member structure and with four or five buffer tubes each loosely receiving optical fiber ribbons in a stack and is disposed around and contacting the strength member. The optical fiber count is in excess of 1000 and the fill factor is not greater than 85% in a two inch duct. Each buffer tube contacts adjacent buffer tubes, and the buffer tubes are encircled by a jacket. Optionally, spaces bounded by pairs of buffer tubes and the jacket have optical fibers therein and can also include flexible longitudinal strength members and/or water blocking filaments. Preferably, the strength member structure and/or the buffer tubes are encircled by a water blocking tape. The optical fiber ribbons in the stacks can include different numbers of fibers, and hence, can have different width.
    Type: Grant
    Filed: July 5, 2001
    Date of Patent: March 22, 2005
    Assignee: Pirelli Cables and Systems LLC
    Inventors: J. Peter Johnson, Robert S. Aull, Mike Petryszak
  • High fiber count optical fiber cable with buffer tubes around central strength member
    Publication number: 20030059182
    Abstract: Optical fiber cable with a central strength member structure and with four or five buffer tubes each loosely receiving optical fiber ribbons in a stack and is disposed around and contacting the strength member. The optical fiber count is in excess of 1000 and the fill factor is not greater than 85% in a two inch duct. Each buffer tube contacts adjacent buffer tubes, and the buffer tubes are encircled by a jacket. Optionally, spaces bounded by pairs of buffer tubes and the jacket have optical fibers therein and can also include flexible longitudinal strength members and/or water blocking filaments. Preferably, the strength member structure and/or the buffer tubes are encircled by a water blocking tape. The optical fiber ribbons in the stacks can include different numbers of fibers, and hence, can have different width.
    Type: Application
    Filed: July 5, 2001
    Publication date: March 27, 2003
    Inventors: J. Peter Johnson, Robert S. Aull, Mike Petryszak