US4490574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical cable
Assignee: TE Connectivity Corp
•
Filing: 1983-12-13
•
Granted: 1984-12-25
•
Expires: 2003-12-13
Abstract
Abstract According to the present invention, a shielded electrical cable comprises an outer layer of insulating material surrounding a signal conductor and an associated ground conductor and a common shielding layer in electrical contact with the ground conductor but separated from the signal conductor by an inner layer of insulating material surrounding the signal conductor, the signal and ground conductors extend in spaced parallel relationship in a common plane, each surrounded by an individual outer layer of insulating material, the two outer layers of insulating material being integrally formed with a web extending between the two outer layers of insulating material, the shielding layer extending about the inner layer of insulating material on the signal conductor, through the web, and about the ground conductor.
Inventors
- 👤 Akira Tomita
- 👤 Kunitada Tominoi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:55
CPC Classifications
H; H01; H01B; H01B11/00; H01B11/18; H01B11/20; H01B11/203; H01B11/02; H01B11/06; H01B11/10; H01B11/1016; H01B7/00; H01B7/08; H01B7/0861
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
152 words
A shielded electrical cable, comprising: a plurality of signal conductors; a sheath of insulating material surrounding each of the signal conductors defining insulated signal conductors; a plurality of ground conductors, the insulated signal conductors and the ground conductors being alternately arranged in spaced parallel relationship as a planar array; a layer of shielding material substantially surrounding and electrically engaging each of the ground conductors and defining shield-engaging ground conductors, said layer of shielding material extending to an adjacent one of the insulated signal conductors and substantially surrounding the adjacent one of the insulated signal conductors; and an outer layer of insulating material surrounding each of the shielded insulated signal conductors, each of the shield-engaging ground conductors, and the shielding material extending between adjacent signal conductors and ground conductors, the insulating material covering both sides of the layer of shielding material extending between adjacent signal conductors and ground conductors and defining a web.
Claim 2
Dependent Claim
152 words
A shielded electrical cable, comprising: a plurality of signal conductors; a sheath of insulating material surrounding each of the signal conductors defining insulated signal conductors; a plurality of ground conductors, the insulated signal conductors and the ground conductors being alternately arranged in spaced parallel relationship as a planar array; a layer of shielding material substantially surrounding and electrically engaging each of the ground conductors and defining shield-engaging ground conductors, said layer of shielding material extending to an adjacent one of the insulated signal conductors and substantially surrounding the adjacent one of the insulated signal conductors; and an outer layer of insulating material surrounding each of the shielded insulated signal conductors, each of the shield-engaging ground conductors, and the shielding material extending between adjacent signal conductors and ground conductors, the insulating material covering both sides of the layer of shielding material extending between adjacent signal conductors and ground conductors and defining a web.
Claim 3
Dependent Claim
35 words
A shielded electrical cable as set forth in claim 1, wherein the diameter of the outer layer of insulating material surrounding the ground conductors is substantially equal to the diameter of the insulated signal conductors.
Claim 4
Dependent Claim
25 words
A shielded electrical cable as set forth in claim 1, wherein web members of integrally-formed insulating material extend between the outer layers of insulating material.
Claim 5
Dependent Claim
196 words
A ribbon coax cable, comprising: a plurality of coaxial cables, each of the coaxial cables including signal conductor means, insulation sheath means covering the signal conductor means and outer conductor means covering the insulation sheath means; a plurality of ground conductor means, the plurality of coaxial cables and the ground conductor means being alternately arranged in spaced parallel relationship as a substantially planar array with a ground conductor means associated with a respective coaxial cable; an outer layer of insulating material covering the coaxial cables and the ground conductor means thereby maintaining the coaxial cables and ground conductor means in ribbon form and defining web means between the respective coaxial cables and ground conductor means so that the coaxial cables and ground conductor means remain parallel and spaced with respect to each other; electrical conductive means disposed between said outer layer of insulating material, electrically engaging respective outer conductor means of a coaxial cable, extending through said web means and electrically engaging an adjacent ground conductor means; and further web means of said layer of insulating material extending between ground conductor means and an adjacent one of the coaxial cables to isolate them from each other.
Claim 6
Dependent Claim
196 words
A ribbon coax cable, comprising: a plurality of coaxial cables, each of the coaxial cables including signal conductor means, insulation sheath means covering the signal conductor means and outer conductor means covering the insulation sheath means; a plurality of ground conductor means, the plurality of coaxial cables and the ground conductor means being alternately arranged in spaced parallel relationship as a substantially planar array with a ground conductor means associated with a respective coaxial cable; an outer layer of insulating material covering the coaxial cables and the ground conductor means thereby maintaining the coaxial cables and ground conductor means in ribbon form and defining web means between the respective coaxial cables and ground conductor means so that the coaxial cables and ground conductor means remain parallel and spaced with respect to each other; electrical conductive means disposed between said outer layer of insulating material, electrically engaging respective outer conductor means of a coaxial cable, extending through said web means and electrically engaging an adjacent ground conductor means; and further web means of said layer of insulating material extending between ground conductor means and an adjacent one of the coaxial cables to isolate them from each other.
Claim 7
Dependent Claim
37 words
A ribbon coax cable as set forth in claim 4, wherein said outer conductor means and said electrical conductive means extending between respective coaxial means and ground conductive means is a continuous layer of electrical conductive material.
Claim 8
Dependent Claim
30 words
A ribbon coax cable as set forth in claim 5, wherein the continuous layer of electrical conductive material substantially surrounds the insulation sheath means and the respective ground conductor means.
Claim 9
Dependent Claim
37 words
A ribbon coax cable as set forth in claim 4, wherein the diameter of the outer layer of insulating material surrounding the ground conductor means is substantially equal to the diameter of the insulated signal conductor means.
Claim 10
Dependent Claim
22 words
A ribbon coax cable as set forth in claim 4, wherein the signal conductor means and the ground conductor means are stranded.
References Cited (Backward Citations)
CA697919A
Cited
US2043044A
Cited
US3775552A
Cited
US4218581A
Cited
US4234759A
Cited
US4383725A
Cited
US4374299A
Cited
US4412092A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-12-25 | 1988-06-25 | 1988-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-25 | 1992-06-25 | 1992-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-25 | 1996-06-25 | 1996-12-25 | $7700.00 | Window Closed / Lapsed |