Patent US4339733A successfully refreshed from Google Patents.
US4339733A
Expired / Lapsed
US
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Radiating cable
Assignee: Times Fiber Communications Inc
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Filing: 1980-09-05
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Granted: 1982-07-13
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Expires: 2000-09-05
Abstract
Abstract The subject invention is directed to a radiating cable comprising at least one center conductor, a dielectric core surrounding said conductor and a plurality of radiating sheaths disposed in coaxial relationship to said at least one center conductor along the length of said dielectric core. The cable design minimizes attenuation of the internal TEM signal and reduces the environmental sensitivity of the cable.
Inventors
- 👤 Kenneth I. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:41
CPC Classifications
H; H01; H01Q; H01Q13/00; H01Q13/20; H01Q13/203; H01P; H01P3/00; H01P3/02; H01P3/06
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
128 words
A radiating cable comprising a center conductor, a cylindrical dielectric core surrounding said conductor, a first radiating sheath disposed along the length of said dielectric core surrounding said center conductor in coaxial relation to said center conductor, an intermediate dielectric layer surrounding said first radiating sheath, and a second radiating sheath disposed along the length of said intermediate dielectric layer in coaxial relation to said center conductor, wherein each of said first and second radiating sheaths is a tubular shaped metal tape having a longitudinal gap along its entire length and wherein said longitudinal gap in the tubular shaped metal tape of the first radiating sheath is positioned directly opposite the radial position of the longitudinal gap in the tubular shaped metal tape of the second radiating sheath.
Claim 2
Dependent Claim
128 words
A radiating cable comprising a center conductor, a cylindrical dielectric core surrounding said conductor, a first radiating sheath disposed along the length of said dielectric core surrounding said center conductor in coaxial relation to said center conductor, an intermediate dielectric layer surrounding said first radiating sheath, and a second radiating sheath disposed along the length of said intermediate dielectric layer in coaxial relation to said center conductor, wherein each of said first and second radiating sheaths is a tubular shaped metal tape having a longitudinal gap along its entire length and wherein said longitudinal gap in the tubular shaped metal tape of the first radiating sheath is positioned directly opposite the radial position of the longitudinal gap in the tubular shaped metal tape of the second radiating sheath.
Claim 3
Dependent Claim
94 words
A radiating cable comprising a center conductor, a cylindrical dielectric core surrounding said center conductor, a first radiating sheath disposed along the length of said dielectric core in coaxial relation to said center conductor, an intermediate dielectric layer surrounding said first radiating sheath, and a second radiating sheath disposed along the length of said intermediate dielectric layer in coaxial relation to said center conductor, wherein said first radiating sheath is a tubular shaped metal tape having a longitudinal gap along its entire length and said second radiating sheath is a non-overlapping helical metal tape.
Claim 4
Dependent Claim
94 words
A radiating cable comprising a center conductor, a cylindrical dielectric core surrounding said center conductor, a first radiating sheath disposed along the length of said dielectric core in coaxial relation to said center conductor, an intermediate dielectric layer surrounding said first radiating sheath, and a second radiating sheath disposed along the length of said intermediate dielectric layer in coaxial relation to said center conductor, wherein said first radiating sheath is a tubular shaped metal tape having a longitudinal gap along its entire length and said second radiating sheath is a non-overlapping helical metal tape.
Claim 5
Dependent Claim
15 words
The radiating cable as defined by claims 1 or 2, further comprising a protective jacket.
Claim 6
Dependent Claim
54 words
The radiating cable as defined by claim 3, wherein at least one of said radiating sheaths is provided with apertures which are dimensioned to achieve a grading effect, whereby the coupling of energy through the sheath is increased along the length of the cable to compensate for attenuation of the signal within the cable.
Claim 7
Dependent Claim
17 words
The radiating cable as defined by claim 3, wherein said metal tape is a metal laminate tape.
Claim 8
Dependent Claim
32 words
The radiating cable as defined by claim 3, wherein said metal tape contains an adhesive on at least one side which adheres it to at least one adjacent layer in said cable.
Claim 9
Dependent Claim
20 words
The radiating cable as defined by claim 3, wherein said radiating sheaths have at least one perturbing element associated therewith.
Claim 10
Dependent Claim
18 words
The radiating cable as defined by claim 3, wherein at least one of said radiating sheaths is corrugated.
Claim 11
Dependent Claim
93 words
A radiating cable comprising a center conductor, a dielectric core surrounding said conductor, and a plurality of radiating sheaths disposed along the length of said dielectric core, wherein each of said radiating sheaths is separated from the adjacent sheath by an intermediate layer of dielectric material and wherein at least one of said radiating sheaths is provided with apertures which are dimensioned to achieve a grading effect whereby the coupling of energy through the sheath is increased along the length of the cable to compensate for attenuation of the signal within the cable.
Claim 12
Dependent Claim
93 words
A radiating cable comprising a center conductor, a dielectric core surrounding said conductor, and a plurality of radiating sheaths disposed along the length of said dielectric core, wherein each of said radiating sheaths is separated from the adjacent sheath by an intermediate layer of dielectric material and wherein at least one of said radiating sheaths is provided with apertures which are dimensioned to achieve a grading effect whereby the coupling of energy through the sheath is increased along the length of the cable to compensate for attenuation of the signal within the cable.
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) | 1985-07-12 | 1986-01-11 | 1986-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-12 | 1990-01-11 | 1990-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-12 | 1994-01-11 | 1994-07-13 | $7700.00 | Window Closed / Lapsed |