US4906067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical cable comprising a plurality of bundle elements
Assignee: Siemens AG
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Filing: 1989-03-13
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Granted: 1990-03-06
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Expires: 2009-03-13
Abstract
Abstract An optical cable comprising a plurality of bundle elements, each of which contains a plurality of light waveguides loosely arranged inside a deformable protective sheath. The light waveguides are combined in the form of light waveguide pairs and are fashioned as flat, ribbon-like structures, which are mobile in a radial direction relative to one another and relative to the outer sheath of the bundle element. The protective sheath is expediently composed of a rubber-elastic material, whose modulus elasticity is selected to be in a range of 50-500 N/mm 2 .
Inventors
- 👤 Ernst Mayr
- 👤 Ulrich Oestreich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:10
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/44; G02B6/4401; G02B6/441; G02B6/4411; G02B6/4413; G02B6/4479; G02B6/4482
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
99 words
In an optical cable comprising a plurality of bundle elements, each bundle element having a plurality of light waveguides arranged within a deformable plastic sheath, the improvements comprising the light waveguides being mechanically combined in the form of light waveguide pairs, and the individual light waveguide pairs of a bundle element being arranged radially movable relative to one another and relative to an outer, highly elastic plastic protective sheath of the bundle element, said protective sheath being composed of a rubber-elastic material and having a modulus of elasticity in a range of between 50 and 500 N/mm 2 .
Claim 2
Dependent Claim
99 words
In an optical cable comprising a plurality of bundle elements, each bundle element having a plurality of light waveguides arranged within a deformable plastic sheath, the improvements comprising the light waveguides being mechanically combined in the form of light waveguide pairs, and the individual light waveguide pairs of a bundle element being arranged radially movable relative to one another and relative to an outer, highly elastic plastic protective sheath of the bundle element, said protective sheath being composed of a rubber-elastic material and having a modulus of elasticity in a range of between 50 and 500 N/mm 2 .
Claim 3
Dependent Claim
24 words
In an optical cable according to claim 1, wherein the light waveguides of a light waveguide pair are held together by a common coating.
Claim 4
Dependent Claim
18 words
In an optical waveguide according to claim 3, wherein said common coating is composed of an ultraviolet-curable acrylate.
Claim 5
Dependent Claim
22 words
In an optical cable according to claim 1, wherein the light waveguides of each pair are joined together by an adhesive material.
Claim 6
Dependent Claim
27 words
In an optical cable according to claim 1, wherein the light waveguide pairs are provided with a color coating to make each pair distinguishable from one another.
Claim 7
Dependent Claim
19 words
In an optical cable according to claim 1, wherein the light waveguide pairs are not stranded with one another.
Claim 8
Dependent Claim
27 words
In an optical waveguide cable according to claim 1, wherein the individual bundle elements are stranded to one another in a Lang's lay, preferably without a backtwist.
Claim 9
Dependent Claim
20 words
In an optical cable according to claim 1, wherein the individual bundle elements are stranded with an alternating twist direction.
Claim 10
Dependent Claim
33 words
In an optical cable according to claim 1, wherein the wall thickness of the protective sheath is selected to be in a range of 10%-20% of the outside diameter of the bundle element.
Claim 11
Dependent Claim
25 words
In an optical cable according to claim 1, wherein a dead space within each bundle element is selected to be in a range of 40%-80%.
Claim 12
Dependent Claim
15 words
In an optical cable according to claim 11, wherein the dead space is approximately 60%.
Claim 13
Dependent Claim
23 words
In an optical cable according to claim 1, wherein each bundle element has five pairs arranged inside the sheath of the bundle element.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-03-05 | 1993-09-04 | 1994-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-05 | 1997-09-04 | 1998-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-05 | 2001-09-04 | 2002-03-06 | $7700.00 | Window Closed / Lapsed |