US4497538A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filled transmission cable
Assignee: Corning Research and Development Corp
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Filing: 1983-08-10
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Granted: 1985-02-05
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Expires: 2003-08-10
Abstract
Abstract An improved transmission cable containing a filling material having superior handling and melt point characteristics useful for waterproofing telecommunication cables composed of a styrene-ethylene butylene-styrene block copolymer dissolved in petrolatum with polyethylene added for consistency and to increase the melting point of the mixture.
Inventors
- 👤 Naren I. Patel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:09
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/17; H01B7/28; H01B7/282; H01B7/285; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2942; Y10T428/2947
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
89 words
A cable comprising a plurality of conductors contained within a jacket leaving voids between the conductors and the jacket and a filling material substantially filling the voids, the invention characterized in that the filling material consists essentially of a mixture of: (A) styrene-ethylene butylene-styrene block copolymer having a styrene to rubber ratio of 0.39 to 0.41, (B) polyethylene having a molecular weight from 1,000 to 10,000, and, (C) petrolatum, the ingredients A, B and C having relative proportions falling within the shaded area abounded by ABCDEFGHI of the FIGURE.
Claim 2
Dependent Claim
89 words
A cable comprising a plurality of conductors contained within a jacket leaving voids between the conductors and the jacket and a filling material substantially filling the voids, the invention characterized in that the filling material consists essentially of a mixture of: (A) styrene-ethylene butylene-styrene block copolymer having a styrene to rubber ratio of 0.39 to 0.41, (B) polyethylene having a molecular weight from 1,000 to 10,000, and, (C) petrolatum, the ingredients A, B and C having relative proportions falling within the shaded area abounded by ABCDEFGHI of the FIGURE.
Claim 3
Dependent Claim
12 words
The cable of claim 1 wherein the conductors transmit electrical communications signals.
Claim 4
Dependent Claim
10 words
The cable of claim 2 wherein the conductors transmit light.
Claim 5
Dependent Claim
19 words
The cable of claims 1, 2 or 3 wherein the polyethylene has a specific gravity of at least 0.90.
Claim 6
Dependent Claim
19 words
The cable of claims 1, 2 or 3 wherein block copolymer has a specific gravity of at least 0.91.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-02-05 | 1988-08-06 | 1989-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-05 | 1992-08-06 | 1993-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-05 | 1996-08-06 | 1997-02-05 | $7700.00 | Window Closed / Lapsed |