US4083484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for manufacturing flexible shielded coaxial cable
Assignee: KM Kabelmetal AG
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Filing: 1974-11-19
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Granted: 1978-04-11
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Expires: 1994-11-19
Abstract
Abstract There is disclosed a process and apparatus for manufacturing flexible, shielded coaxial cable exhibiting improved magnetical screening capabilities wherein a tubular outer conductor is concentrically formed about an inner conductor with spacer means being disposed in the annulus between conductors. Accordingly, about the inner conductor including spacer means therefore, there is formed an inner component tube of a conductive material by the continuous forming in a lengthwise direction of a metal band into a tube having longitudinal edges welded together in a continuous, longitudinal welded joint. Concurrently, at least one further component tube is formed concentrically about the inner component tube by the lengthwise deformation of a second metal band of a ferromagnetic material into a second tube having opposed longitudinal edges which are also welded in a longitudinal direction in a continuous, longitudinal welded joint.
Inventors
- 👤 Fred F. Polizzano, deceased
- 👤 Dimitri R. Stein
- 👤 Gerhard Ziemek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:22
CPC Classifications
H; H01; H01B; H01B13/00; H01B13/22; H01B13/225; H01B13/0009; H01B13/26; H01B13/2613; H01B13/2633; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49123
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
188 words
A process for manufacturing flexible, shielded coaxial cable formed of a plurality of tubular members exhibiting improved screening capabilities, comprising the steps of: continuously deforming about an inner conductor provided with spacer means a first metal band in a longitudinal direction into a first tubular member, said first metal band being formed of a conductive material; continuously welding the longitudinal edges of said first tubular member to form a first tubular member having a longitudinally welded seam; deforming at least a second metal band in a longitudinal direction concentrically about said longitudinally welded first tubular member to form a second tubular member concentrically about said first tubular member, said second metal band being formed of ferromagnetic material; continuously welding the longitudinal edges of said second tubular member to form a second tubular member having a longitudinally welded seam; and corrugating both said first and second welded tubular members in a transverse axial direction to provide a common transverse corrugation by corrugating said second welded tubular member into said first welded tubular member to form a dual walled, corrugated metal tube from said first and second welded tubular members.
Claim 2
Dependent Claim
188 words
A process for manufacturing flexible, shielded coaxial cable formed of a plurality of tubular members exhibiting improved screening capabilities, comprising the steps of: continuously deforming about an inner conductor provided with spacer means a first metal band in a longitudinal direction into a first tubular member, said first metal band being formed of a conductive material; continuously welding the longitudinal edges of said first tubular member to form a first tubular member having a longitudinally welded seam; deforming at least a second metal band in a longitudinal direction concentrically about said longitudinally welded first tubular member to form a second tubular member concentrically about said first tubular member, said second metal band being formed of ferromagnetic material; continuously welding the longitudinal edges of said second tubular member to form a second tubular member having a longitudinally welded seam; and corrugating both said first and second welded tubular members in a transverse axial direction to provide a common transverse corrugation by corrugating said second welded tubular member into said first welded tubular member to form a dual walled, corrugated metal tube from said first and second welded tubular members.
Claim 3
Dependent Claim
20 words
The process as defined in claim 1 wherein the diameter of said second tubular member is reduced prior to corrugation.
Claim 4
Dependent Claim
20 words
The process according to claim 2 wherein said step of reducing is accomplished by drawing down said second tubular member.
Claim 5
Dependent Claim
20 words
The process according to claim 3 additionally comprising the step of forming a plastic sheathing about the metal cable formed.
Claim 6
Dependent Claim
30 words
The process according to claim 3 additionally comprising the step of applying a corrosion proof coating to each tubular member prior to the formation of a succeeding tubular member thereabout.
Claim 7
Dependent Claim
20 words
The process according to claim 5 additionally comprising the step of forming a plastic sheathing about the metal cable formed.
Claim 8
Dependent Claim
30 words
The process according to claim 1 additionally comprising the step of applying a corrosion proof coating to each tubular member prior to the formation of a succeeding tubular member thereabout.
Claim 9
Dependent Claim
20 words
The process according to claim 1 additionally comprising the step of forming a plastic sheathing about the metal cable formed.
Claim 10
Dependent Claim
10 words
The metal tubing formed by the process of claim 1.
Claim 11
Dependent Claim
20 words
The process according to claim 1 wherein said first tubular member is formed concentrically about spacer means comprised of disks.
Claim 12
Dependent Claim
9 words
The cable formed by the process of claim 10.
Claim 13
Dependent Claim
210 words
A process for manufacturing flexible, shielded coaxial cable formed of a plurality of tubular members exhibiting improved screening capabilities, comprising the steps of: continuously deforming about an inner conductor provided with spacer means a first metal band in a longitudinal direction into a first tubular member, said first metal band being formed of a conductive material; continuously welding the longitudinal edges of said first tubular member to form a first tubular member having a longitudinally welded seam; applying a bonding material about said first welded tubular member; deforming at least a second metal band in a longitudinal direction concentrically about said longitudinally welded first tubular member to form a second tubular member concentrically about said first tubular member, said second metal band being formed of a ferromagnetic material; continuously welding the longitudinal edges of said second tubular member to form a second tubular member having a longitudinally welded seam; heating said second welded tubular member and bonding material encompassed thereby; and corrugating both said first and second welded tubular members in a transverse axial direction to provide a common transverse corrugation by corrugating said second welded tubular member into said first welded tubular member to form a dual walled, corrugated metal tube from said first and second welded tubular members.
Claim 14
Dependent Claim
210 words
A process for manufacturing flexible, shielded coaxial cable formed of a plurality of tubular members exhibiting improved screening capabilities, comprising the steps of: continuously deforming about an inner conductor provided with spacer means a first metal band in a longitudinal direction into a first tubular member, said first metal band being formed of a conductive material; continuously welding the longitudinal edges of said first tubular member to form a first tubular member having a longitudinally welded seam; applying a bonding material about said first welded tubular member; deforming at least a second metal band in a longitudinal direction concentrically about said longitudinally welded first tubular member to form a second tubular member concentrically about said first tubular member, said second metal band being formed of a ferromagnetic material; continuously welding the longitudinal edges of said second tubular member to form a second tubular member having a longitudinally welded seam; heating said second welded tubular member and bonding material encompassed thereby; and corrugating both said first and second welded tubular members in a transverse axial direction to provide a common transverse corrugation by corrugating said second welded tubular member into said first welded tubular member to form a dual walled, corrugated metal tube from said first and second welded tubular members.
Claim 15
Dependent Claim
208 words
A process for manufacturing flexible, shielded coaxial cable formed of a plurality of tubular members exhibiting improved screening capabilities, comprising the steps of: continuously deforming about an inner conductor provided with spacer means a first metal band in a longitudinal direction into a first tubular member, said first metal band being formed of a conductive material; continuously welding the longitudinal edges of said first tubular member to form a first tubular member having a longitudinally welded seam; applying a bonding material about said first welded tubular member and positioning a spacer means on said bonding material; deforming at least a second metal band in a longitudinal direction concentrically about said longitudinally welded first tubular member to form a second tubular member concentrically about said first tubular member, said second metal band being formed of a ferromagnetic material; continuously welding the longitudinal edges of said second tubular member to form a second tubular member having a longitudinally welded seam; and corrugating both said first and second welded tubular members in a transverse axial direction to provide a common transverse corrugation by corrugating said second welded tubular member into said first welded tubular member to form a dual walled corrugated metal tube from said first and second welded tubular members.
Claim 16
Dependent Claim
208 words
A process for manufacturing flexible, shielded coaxial cable formed of a plurality of tubular members exhibiting improved screening capabilities, comprising the steps of: continuously deforming about an inner conductor provided with spacer means a first metal band in a longitudinal direction into a first tubular member, said first metal band being formed of a conductive material; continuously welding the longitudinal edges of said first tubular member to form a first tubular member having a longitudinally welded seam; applying a bonding material about said first welded tubular member and positioning a spacer means on said bonding material; deforming at least a second metal band in a longitudinal direction concentrically about said longitudinally welded first tubular member to form a second tubular member concentrically about said first tubular member, said second metal band being formed of a ferromagnetic material; continuously welding the longitudinal edges of said second tubular member to form a second tubular member having a longitudinally welded seam; and corrugating both said first and second welded tubular members in a transverse axial direction to provide a common transverse corrugation by corrugating said second welded tubular member into said first welded tubular member to form a dual walled corrugated metal tube from said first and second welded tubular members.
Claim 17
Dependent Claim
9 words
The cable formed by the process of claim 12.
Claim 18
Dependent Claim
9 words
The cable formed by the process of claim 13.
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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) | 1981-04-10 | 1981-10-10 | 1982-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-10 | 1985-10-10 | 1986-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-10 | 1989-10-10 | 1990-04-11 | $7700.00 | Window Closed / Lapsed |