Title: Optical guides

Abstract: An optical cable comprises at least one optical cable element and, surrounding the optical cable element or elements, a flexible tube of rubber or plastics material, the bore of the tube being of such a transverse cross-section having regard to the transverse cross-section of the optical cable element or to the transverse cross-sections of the optical cable elements that there is at least one elongate space formed between the element or elements and the internal surface of the tube. The or each optical cable element comprises an extruded elongate body of rubber or plastics material having a transverse cross sectional shape of elongate form and having at least one bore extending lengthwise in the body, at least one optical bundle and/or at least one separate optical fiber housed loosely in the bore or in at least one of the bores and, embedded in said extruded elongate body and arranged side-by-side with said bore or bores, at least two separate elongate reinforcing members, the or each bore being positioned between two reinforcing members.

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Inventors: Dean, Noel S. (Wigan, GB)
Lea, Frank (St. Helens, GB)

Application Number: 892913
Filing Date: 1978-04-03
Publication_date: 1980-04-01
Assignee: BICC Limited (London, GB2)
Primary Class(es): 385/113 385/101
Other Classes:
US Patent Ref:

3955878	May, 1976	Nowak	350/96.
4110001	Aug, 1978	Olszewski et al.	350/96.

Other Refs: 2635917230034814794261480206

Feb, 1978	DE
Sep, 1976	FR
Jul, 1977	GB
Jul, 1977	GB

Primary Examiner: Levy, Stewart J.
Assistant Examiner:
Attorney: Buell, Blenko & Ziesenheim