Patent US3735293A successfully refreshed from Google Patents.
US3735293A
Expired / Lapsed
US
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High frequency cable
Assignee: KM Kabelmetal AG
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Filing: 1971-05-12
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Granted: 1973-05-22
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Expires: 1991-05-12
Abstract
Abstract A high frequency conductor systems for development of a partial external field with one or two inner conductors extending along a center line and surrounded by a dielectric substance; a tubular outer conductor or shield, physically encloses the inner conductor and the substance completely, and is constructed from serially interconnected, axially juxtaposed conductor loops providing a closed tube as well as a helical conduction path around said center line.
Inventors
- 👤 O Breitenbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:47
CPC Classifications
H; H01; H01B; H01B11/00; H01B11/18; H01B11/1808; H01B11/02; H01B11/06; H01B11/10; H01P; H01P3/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
111 words
A radiating, high frequency, coaxial conductor system having inner and coaxial Outer conductors provided for development of a partial external field for utilization outside and along the outer conductor, the improvement comprising: the inner conductor as extending along a center line constructed for current flow in axial direction along the center line; a dielectric substance around the inner conductor and physically enveloping the inner conductor; and the outer conductor being tubular conductor, physically enclosing the inner conductor and the substance completely and constructed for establishing a helical path as exclusive flow path for electric current flow around the said center line, there being no shield or conductor around the outer conductor.
Claim 2
Dependent Claim
111 words
A radiating, high frequency, coaxial conductor system having inner and coaxial Outer conductors provided for development of a partial external field for utilization outside and along the outer conductor, the improvement comprising: the inner conductor as extending along a center line constructed for current flow in axial direction along the center line; a dielectric substance around the inner conductor and physically enveloping the inner conductor; and the outer conductor being tubular conductor, physically enclosing the inner conductor and the substance completely and constructed for establishing a helical path as exclusive flow path for electric current flow around the said center line, there being no shield or conductor around the outer conductor.
Claim 3
Dependent Claim
34 words
Conductor system as in claim 1 said outer, tubular conductor or shield constructed from serially interconnected,axially juxtaposed conductor loops providing a closed tube as well as a helical conduction path around said center line.
Claim 4
Dependent Claim
53 words
Conductor system as in claim 1, the tubular outer conductor constructed as a lay of wire or wires helically wound around the center line, adjacent loops engage each other, the wire or wires insulated at least to the extent that current flows essentially only along the wires and not axially between adjacent loops.
Claim 5
Dependent Claim
16 words
Conductor system as in claim 1, the tubular outer conductor constructed from helical wound metal strip.
Claim 6
Dependent Claim
23 words
Conductor system as in claim 1, the tubular outer conductor constructed from a sheet with oblique slots, tubularly bent around the center line.
Claim 7
Independent Claim
131 words
The method of transmitting energy from a stationary transmitter to a mobile receiver comprising the steps of placing a radiating coaxial cable along the path of the receiver; using in the cable an inner conductor as extending along a center line and constructed for current flow in axial direction along the center line, a dielectric substance around the inner conductor and physically enveloping the inner conductor; and using a tubular outer conductor in the cable, physically enclosing the inner conductor and the substance completely and constructed for establishing a helical path as exclusive flow path for electric current flow around the said center line, there being no shield or conductor around the outer conductor, so that a partial external field develops along the cable for pick up by the mobile receiver.
Claim 8
Independent Claim
131 words
The method of transmitting energy from a stationary transmitter to a mobile receiver comprising the steps of placing a radiating coaxial cable along the path of the receiver; using in the cable an inner conductor as extending along a center line and constructed for current flow in axial direction along the center line, a dielectric substance around the inner conductor and physically enveloping the inner conductor; and using a tubular outer conductor in the cable, physically enclosing the inner conductor and the substance completely and constructed for establishing a helical path as exclusive flow path for electric current flow around the said center line, there being no shield or conductor around the outer conductor, so that a partial external field develops along the cable for pick up by the mobile receiver.
Claim 9
Dependent Claim
24 words
The method as in claim 6, using helically wound metal strip in electrical insulation as to sequential loops as outer conductor of the cable.
Claim 10
Dependent Claim
17 words
The method as in claim 6, using helically wound insulated wire as outer conductor of the cable.
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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) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |