Patents by Inventor Marsha S. Stix

Marsha S. Stix 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).

  • Patent number: 5224190
    Abstract: An optical fiber cable (20) includes a longitudinally extending copper core member (34). The core member is formed with at least one groove (36) in which is disposed at least one optical fiber. The optical fiber is coupled sufficiently to the core member preferably by an ultraviolet light energy cured material to substantially inhibit relative movement between the optical fiber and the core member when forces are applied to the cable. A sheath system which includes a plastic jacket (112) is disposed about the core member. The sheath system includes a strength member system which includes longitudinally extending copper wires (105, 105) and steel wires (101, 107). Disposed about the steel and copper wires is a steel shield (110) which provides hermetic protection for the optical fibers.
    Type: Grant
    Filed: March 31, 1992
    Date of Patent: June 29, 1993
    Assignee: AT&T Bell Laboratories
    Inventors: Tek-Che Chu, Kenneth M. Kroupa, Clyde J. Lever, Jr., Parbhubhai D. Patel, Seymour Shapiro, Marsha S. Stix, Roger A. Willby
  • Patent number: 4988875
    Abstract: A sample inspection arrangement incorporates a sample of polyethylene with an included defect, or flaw, a light source containing near infrared wavelengths, and a video camera. Polyethylene has relatively high spectral transmissivity for wavelengths in the band of near infrared wavelengths. The video camera collects data from a beam of the near infrared light which either reflects from or is transmitted directly through a portion of the polyethylene sample. Data is collected from both defect free portions of the polyethylene sample and portions of polyethylene sample including at least one defect. A visual image of the polyethylene sample and included defect is produced on either a video monitor, a paper print out, or a photograph. The method for inspecting a sample of cable or a continuously moving section of cable also is described.
    Type: Grant
    Filed: December 13, 1988
    Date of Patent: January 29, 1991
    Assignee: AT&T Bell Laboratories
    Inventors: Marcos G. Ortiz, Marsha S. Stix