US4161704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coaxial cable and method of making the same
Assignee: UTI Corp
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Filing: 1977-01-21
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Granted: 1979-07-17
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Expires: 1997-01-21
Abstract
Abstract Circuit components such as frequency filters, impedance transformers, and time delay elements are fabricated into an assembly which is electrically and mechanically coupled to the center conductor. A seamless dielectric material is telescoped over the assembly and then the assembly is telescoped into a seamless outer jacket of conductive material. Then the ID of the outer jacket is reduced into contact with the dielectric material surrounding said assembly and center conductor by drawing said jacket through a die.
Inventors
- 👤 Robert H. Schafer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:43
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/20; H01P1/201; H01P1/202; H01B; H01B13/00; H01B13/0006; H01B13/016; H01B13/06; H01B13/062; H01P11/00; H01P11/001; H01P11/005; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49016
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
90 words
A coaxial cable comprising: (a) at least one center conductor, (b) at least one circuit component electrically associated with said center conductor and coaxial therewith, (c) a tubular layer of dielectric material surrounding said circuit component and said center conductor respectively, and (d) a monolithic jacket of electrically conductive material surrounding said tubular layer and exerting radially inwardly directed compressive force on the entire circumference of said tubular layer of dielectric material, said jacket extending along the length of and being coaxial with said circuit component and said center conductor.
Claim 2
Dependent Claim
90 words
A coaxial cable comprising: (a) at least one center conductor, (b) at least one circuit component electrically associated with said center conductor and coaxial therewith, (c) a tubular layer of dielectric material surrounding said circuit component and said center conductor respectively, and (d) a monolithic jacket of electrically conductive material surrounding said tubular layer and exerting radially inwardly directed compressive force on the entire circumference of said tubular layer of dielectric material, said jacket extending along the length of and being coaxial with said circuit component and said center conductor.
Claim 3
Dependent Claim
15 words
A cable in accordance with claim 1 wherein said circuit component is a frequency filter.
Claim 4
Dependent Claim
14 words
A cable in accordance with claim 2 wherein said filter is a low-pass filter.
Claim 5
Dependent Claim
14 words
A cable in accordance with claim 2 wherein said filter is a band-pass filter.
Claim 6
Dependent Claim
14 words
A cable in accordance with claim 2 wherein said filter is a band-reject filter.
Claim 7
Dependent Claim
38 words
A cable in accordance with claim 1 including a second layer of dielectric material which surrounds said center conductor, said tubular layer of dielectric material surrounding said second layer and being a polymeric plastic which will cold flow.
Claim 8
Dependent Claim
67 words
A coaxial cable comprising a stepped center conductor, a tubular layer of dielectric material surrounding said stepped center conductor, and a monolithic jacket of electrically conductive material surrounding and compressing the outer circumference of said layer of dielectric material radially inwardly to eliminate any air space there between along the length thereof, said jacket extending along the length of and being coaxial with said stepped center conductor.
Claim 9
Dependent Claim
67 words
A coaxial cable comprising a stepped center conductor, a tubular layer of dielectric material surrounding said stepped center conductor, and a monolithic jacket of electrically conductive material surrounding and compressing the outer circumference of said layer of dielectric material radially inwardly to eliminate any air space there between along the length thereof, said jacket extending along the length of and being coaxial with said stepped center conductor.
Claim 10
Independent Claim
136 words
A method of making a coaxial cable comprising: (a) electrically coupling at least one circuit component to a first center conductor so as to be coaxial therewith, (b) electrically coupling said circuit component to a second center conductor surrounded by a dielectric material coaxial therewith, (c) surrounding said circuit component and said dielectric material surrounding said second center conductor with tubular dielectric material, (d) inserting the thusly formed structure into an oversized jacket of electrically conductive material, (e) and then reducing the ID of said jacket to a predetermined ID while said circuit component is inside said jacket to cause said jacket to apply a radially inwardly directed compressive force on said tubular dielectric material and to cause said jacket ID to be spaced radially from the OD of the circuit component by a predetermined distance.
Claim 11
Independent Claim
136 words
A method of making a coaxial cable comprising: (a) electrically coupling at least one circuit component to a first center conductor so as to be coaxial therewith, (b) electrically coupling said circuit component to a second center conductor surrounded by a dielectric material coaxial therewith, (c) surrounding said circuit component and said dielectric material surrounding said second center conductor with tubular dielectric material, (d) inserting the thusly formed structure into an oversized jacket of electrically conductive material, (e) and then reducing the ID of said jacket to a predetermined ID while said circuit component is inside said jacket to cause said jacket to apply a radially inwardly directed compressive force on said tubular dielectric material and to cause said jacket ID to be spaced radially from the OD of the circuit component by a predetermined distance.
Claim 12
Dependent Claim
52 words
A method in accordance with claim 8 wherein the dielectric marterial around the circuit component is attained by telescoping said tubular dielectric material over the circuit component in a manner so that an end portion of the tube overlaps an adjacent end portion of the dielectric material surrounding the second center conductor.
Claim 13
Dependent Claim
44 words
A method in accordance with claim 8 including positioning the circuit component so as to be located between the ends of said jacket before said reducing step so that the location of said component within said jacket is not visible to the naked eye.
Claim 14
Dependent Claim
42 words
A method in accordance with claim 8 including tuning the frequency of said component while it is in said jacket by passing the jacket through a reducing die and reducing the jacket ID to reduce the thickness of the tubular dielectric material.
Claim 15
Independent Claim
94 words
A method of making a coaxial cable comprising: (a) surrounding a circuit component and a center conductor with a coaxial seamless tubular layer of dielectric material which will cold flow, (b) inserting said structure of step (a) into an electrically conductive jacket, and (c) apply compressive force radially inwardly on the entire circumference of said material by reducing the inner diameter of said jacket while said circuit component and said material are inside said jacket to thereby avoid an air film between said jacket and that portion of said dielectric material surrounding said component.
Claim 16
Independent Claim
94 words
A method of making a coaxial cable comprising: (a) surrounding a circuit component and a center conductor with a coaxial seamless tubular layer of dielectric material which will cold flow, (b) inserting said structure of step (a) into an electrically conductive jacket, and (c) apply compressive force radially inwardly on the entire circumference of said material by reducing the inner diameter of said jacket while said circuit component and said material are inside said jacket to thereby avoid an air film between said jacket and that portion of said dielectric material surrounding said component.
Claim 17
Independent Claim
75 words
A method of making a coaxial cable comprising: (a) surrounding a stepped center conductor with a coaxial tubular layer of seamless dielectric material spaced radially outwardly therefrom and out of contact with said conductor, (b) inserting said structure of step (a) into an electrically conductive jacket, and (c) reducing the inner diameter of said jacket and the wall thickness of said material along the length thereof while said structure and material are inside said jacket.
Claim 18
Independent Claim
75 words
A method of making a coaxial cable comprising: (a) surrounding a stepped center conductor with a coaxial tubular layer of seamless dielectric material spaced radially outwardly therefrom and out of contact with said conductor, (b) inserting said structure of step (a) into an electrically conductive jacket, and (c) reducing the inner diameter of said jacket and the wall thickness of said material along the length thereof while said structure and material are inside said jacket.
Claim 19
Dependent Claim
85 words
A coaxial cable comprising a center conductor having a stepped impedance transformer coaxial therewith, a tubular layer of dielectric material surrounding said conductor and transformer, a monolithic jacket of electrically conductive material surrounding and compressing the outer circumference of said layer of dielectric material radially inwardly toward said conductor to minimize air space between said jacket dielectric material as well as air space between said dielectric material and said center conductor, and said jacket extending along the length of and being coaxial with said conductor.
Claim 20
Dependent Claim
85 words
A coaxial cable comprising a center conductor having a stepped impedance transformer coaxial therewith, a tubular layer of dielectric material surrounding said conductor and transformer, a monolithic jacket of electrically conductive material surrounding and compressing the outer circumference of said layer of dielectric material radially inwardly toward said conductor to minimize air space between said jacket dielectric material as well as air space between said dielectric material and said center conductor, and said jacket extending along the length of and being coaxial with said conductor.
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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) | 1982-07-16 | 1983-01-15 | 1983-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-07-16 | 1987-01-15 | 1987-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-07-16 | 1991-01-15 | 1991-07-17 | $7700.00 | Window Closed / Lapsed |