US3914531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power isolated transmission cable assembly
Assignee: TE Connectivity Corp
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Filing: 1974-03-29
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Granted: 1975-10-21
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Expires: 1994-03-29
Abstract
Abstract An improved matched impedance and power transmission cable assembly is disclosed having a pair of flat flexible cables. Each cable comprises a flexible insulating substrate with circuitry on both sides thereof, each covered by an insulation layer. The cables are arranged in stacked fashion with shielding circuitry on the exterior surfaces. The pair of cables is enclosed in a protective sheath and terminated with appropriate terminal means. The circuitry on both sides of each of the two flat flexible cables has a periodic repetition rate so that the cables can be terminated at suitable intervals thus obviating the need to form such cables in a multiplicity of different lengths.
Inventors
- 👤 Dale Richard Zell
- 👤 John Leroy Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:42
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/08; H01R; H01R12/00; H01R12/70; H01R12/77; H01R12/777; H05; H05K; H05K1/00; H05K1/02; H05K1/11; H05K1/118
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
277 words
A matched impedance and isolated power circuit cable assembly comprising: at least two flat flexible cables arranged in stacked configuration, each of said cables comprising a flat flexible insulating substrate, circuitry on both sides of said substrate, and insulation covering said circuitry; one of said cables having a plurality of flat, parallel, spaced apart signal conductOrs lying in a single plane on a first side of said substrate and a plurality of interconnected flat shield conductors lying in a single plane on the other side of said substrate, said shield conductors extending parallel to said signal conductors and being laterally offset therefrom, said shield conductors having a width which is no greater than the spacing between said signal conductors whereby the edge portions of said shield conductors do not overlap edge portions of said signal conductors; the other of said cables having on a first side of said substrate a plurality of flat, parallel, spaced apart signal conductors and a single flat, wide ground conductor both lying in a single plane, and on the other side of said substrate at least one power conductor of a first rating, at least one power conductor of a second rating, said power conductors aligned opposite and parallel to said single ground conductor, single flat isolating conductors lying in the same plane as and to each side of said power conductors, and a plurality of interconnected flat shield conductors lying in a single plane extending parallel to and laterally offset from said signal conductors; sheating means enclosing said flexible cables; terminal means attached to opposite ends of said cable assembly; said cables being stacked with said first sides adjacent one another.
Claim 2
Dependent Claim
277 words
A matched impedance and isolated power circuit cable assembly comprising: at least two flat flexible cables arranged in stacked configuration, each of said cables comprising a flat flexible insulating substrate, circuitry on both sides of said substrate, and insulation covering said circuitry; one of said cables having a plurality of flat, parallel, spaced apart signal conductOrs lying in a single plane on a first side of said substrate and a plurality of interconnected flat shield conductors lying in a single plane on the other side of said substrate, said shield conductors extending parallel to said signal conductors and being laterally offset therefrom, said shield conductors having a width which is no greater than the spacing between said signal conductors whereby the edge portions of said shield conductors do not overlap edge portions of said signal conductors; the other of said cables having on a first side of said substrate a plurality of flat, parallel, spaced apart signal conductors and a single flat, wide ground conductor both lying in a single plane, and on the other side of said substrate at least one power conductor of a first rating, at least one power conductor of a second rating, said power conductors aligned opposite and parallel to said single ground conductor, single flat isolating conductors lying in the same plane as and to each side of said power conductors, and a plurality of interconnected flat shield conductors lying in a single plane extending parallel to and laterally offset from said signal conductors; sheating means enclosing said flexible cables; terminal means attached to opposite ends of said cable assembly; said cables being stacked with said first sides adjacent one another.
Claim 3
Dependent Claim
57 words
A cable assembly according to claim 1 wherein each said flat flexible cable further comprises: a plurality of termination windows spaced therealong at regular intervals, each said conductor having a termination portion lying in each said termination window whereby said cable can be produced in great lengths, cut and terminated at lengths nearest the desired cable length.
Claim 4
Dependent Claim
36 words
A cable assembly according to claim 2 wherein each said shield conductor has a termination pad lying in each said termination window offset from the other of said conductors whereby said cable can be uniformly terminated.
Claim 5
Dependent Claim
33 words
A cable assembly according to claim 1 wherein said power conductors comprises: a plurality of parallel, spaced apart first conductors at least some of which are bused together to achieve different power ratings.
Claim 6
Dependent Claim
33 words
A cable assembly according to claim 1 wherein said single flat wide ground conductor has a width at least equal to the total width of all of said parallel, spaced apart power conductors.
Claim 7
Dependent Claim
172 words
A flat flexible cable having matched impedance and isolated power circuits comprising: a flat flexible insulator substrate, a plurality of flat, parallel, spaced apart signal conductors lying in a single plane on a first side of said substrate, a plurality of interconnected flat shield conductors lying in a single plane on the other side of said substrate, said shield conductors extending parallel to said signal conductors and being laterally offset therefrom, said shield conductors having a width which is no greater than the spacing between said signal conductors, at least one power conductor of a first rating and at least one power conductor of a second rating on said other side of said substrate, an isolating conductor on either side of said power conductors and in the same plane as said power conductors, and a single ground conductor on said first side of said substrate, said ground conductor having a width at least as wide as the total width of said power conductors and being aligned in opposition to said power conductors.
Claim 8
Dependent Claim
172 words
A flat flexible cable having matched impedance and isolated power circuits comprising: a flat flexible insulator substrate, a plurality of flat, parallel, spaced apart signal conductors lying in a single plane on a first side of said substrate, a plurality of interconnected flat shield conductors lying in a single plane on the other side of said substrate, said shield conductors extending parallel to said signal conductors and being laterally offset therefrom, said shield conductors having a width which is no greater than the spacing between said signal conductors, at least one power conductor of a first rating and at least one power conductor of a second rating on said other side of said substrate, an isolating conductor on either side of said power conductors and in the same plane as said power conductors, and a single ground conductor on said first side of said substrate, said ground conductor having a width at least as wide as the total width of said power conductors and being aligned in opposition to said power conductors.
Claim 9
Dependent Claim
55 words
A flat flexible cable according to claim 6 wherein said cable further comprises: a plurality of termination windows spaced therealong at regular intervals, each said conductor having a termination portion lying in each said termination window whereby said cable can be produced in great lengths, cut and terminated at lengths nearest the desired cable length.
Claim 10
Dependent Claim
37 words
A flat flexible cable according to claim 7 wherein each said shield conductor has a termination pad lying in each said termination window offset from the other of said conductors whereby said cables can be uniformly terminated.
Claim 11
Dependent Claim
34 words
A flat flexible cable according to claim 6 wherein said power conductors comprise: a plurality of parallel, spaced apart flat conductors at least some of which are bused together to achieve different power ratings.
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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) | 1978-10-20 | 1979-04-21 | 1979-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-20 | 1983-04-21 | 1983-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-20 | 1987-04-21 | 1987-10-21 | $7700.00 | Window Closed / Lapsed |