EP0280279A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Optical cable
Assignee: Sumitomo Electric Industries Ltd
•
Filing: 1988-02-24
•
Granted: —
•
Expires: 2008-02-24
Abstract
Abstract A tape and slot type optical cable having a core with groove dimensions that hold tape shaped optical fibers and also improve the transmission and mechanical strength characteristics of the optical cable. The dimensions require that for a groove having a depth D S and a width W S and a predetermined plurality n of optical fiber bundles of thickness T and width W T that the equations following equations be satisfied:
Inventors
- 👤 Akira C/O Yokohama Works Nishimura
- 👤 Shuzo C/O Yokohama Works Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 11:44
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/44; G02B6/4401; G02B6/441; G02B6/4411; G02B6/4407; G02B6/4408
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
56 words
an optical cable comprising: a predetermined plurality n of tape-shaped optical fiber bundles having a thickness T and a width W T ; and at least one core having at least one groove therein, said groove having a width W S and a depth D S satisfying the equations: said bundles being disposed in said groove.
Claim 2
Dependent Claim
56 words
an optical cable comprising: a predetermined plurality n of tape-shaped optical fiber bundles having a thickness T and a width W T ; and at least one core having at least one groove therein, said groove having a width W S and a depth D S satisfying the equations: said bundles being disposed in said groove.
Claim 3
Dependent Claim
15 words
An optical cable according to claim 1 further including a tape which covers said core.
Claim 4
Dependent Claim
12 words
An optical cable according to claim 2 further including an outer sheath.
Claim 5
Dependent Claim
19 words
An optical cable according to claim 3 further including a tensile member disposed through the center of said core.
Claim 6
Dependent Claim
45 words
An optical cable according to claim 1 wherein said core has at least two grooves therein, said plurality of tape-shaped optical fiber bundles being disposed in one of said grooves, said cable further including a pair of stranded copper wires disposed in said other groove.
Claim 7
Dependent Claim
100 words
An optical cable comprising: a rod shaped tensile member; a predetermined plurality n of tape-shaped optical fiber bundles, each of said bundles having a thickness T and a width W T ; a plurality of cores, each core having at least one groove therein, said groove having a width W S and a depth D S satisfying the equations: said bundles being disposed within each of said grooves; a tape wrapped around each core having said bundles in its grooves; and a sheath which covers all of said cores each having a tape wrapped there around and said tensile member.
Claim 8
Dependent Claim
100 words
An optical cable comprising: a rod shaped tensile member; a predetermined plurality n of tape-shaped optical fiber bundles, each of said bundles having a thickness T and a width W T ; a plurality of cores, each core having at least one groove therein, said groove having a width W S and a depth D S satisfying the equations: said bundles being disposed within each of said grooves; a tape wrapped around each core having said bundles in its grooves; and a sheath which covers all of said cores each having a tape wrapped there around and said tensile member.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.