Patents by Inventor Joseph E. G. Chapman

Joseph E. G. Chapman 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).

  • Optical cables with loosely housed optical guides
    Patent number: 4230395
    Abstract: An optical cable comprises a plurality of separately formed flexible tubes in each of some or all of which is or are loosely housed at least one optical bundle and/or at least one seprate optical fibre. The plurality of tubes is surrounded by an outer protective sheath in which preferably they are so loosely housed as to permit limited relative movement between the tubes when the optical cable is flexed. Where the optical cable is likely to be subjected to a tensile force, preferably at least one elongate reinforcing member is embedded in or surrounded by the outer protective sheath.
    Type: Grant
    Filed: February 3, 1976
    Date of Patent: October 28, 1980
    Assignee: BICC Limited
    Inventors: Noel S. Dean, Joseph E. G. Chapman, Eric L. Williams