US4499438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High frequency attenuation core and cable
Assignee: Raychem Corp
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Filing: 1982-09-14
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Granted: 1985-02-12
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Expires: 2002-09-14
Abstract
Abstract Disclosed is a high frequency attenuation core and cable. The core includes a conductor surrounded by a high frequency energy absorbing medium, then surrounded by a dielectric, and then surrounded by an outer layer made from a material having a high complex dielectric constant. The cable includes the above described core surrounded by an electromagnetic interference (EMI) shield which is further surrounded by a conductive layer. The cable and core as described above may be used in harness applications wherein a plurality of cores and/or cables as described above are surrounded by a gross shield. In addition, when the cores described above are used in multi-core applications, they may individually include an additional EMI shield for greater electromagnetic interference protection.
Inventors
- 👤 Rajendra S. Cornelius
- 👤 Albert R. Martin
- 👤 Hans E. Lunk
- 👤 Mark D. Mendenhall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:57
CPC Classifications
H; H01; H01B; H01B11/00; H01B11/02; H01B11/06; H01B11/10; H01B11/12; H01B11/14; H01B11/146
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
66 words
A high frequency attenuation cable core, comprising: at least one conductor; dielectric surrounding the conductor; a high frequency energy absorption medium for attenuating high frequency energy propagating through the core in use, the absorption medium surrounding the dielectric; and an outer layer made from material having a high complex dielectric constant directly surrounding the absorption medium, said outer layer being made from a titanate loaded polymer.
Claim 2
Dependent Claim
66 words
A high frequency attenuation cable core, comprising: at least one conductor; dielectric surrounding the conductor; a high frequency energy absorption medium for attenuating high frequency energy propagating through the core in use, the absorption medium surrounding the dielectric; and an outer layer made from material having a high complex dielectric constant directly surrounding the absorption medium, said outer layer being made from a titanate loaded polymer.
Claim 3
Dependent Claim
67 words
A high frequency attenuation cable core, comprising: at least one conductor; dielectric surrounding the conductor; a high frequency energy absorption mdium for attenuating high frequency energy propagating through the core in use, the absorption medium surrounding the dielectric; and an outer layer made from material having a high complex dielectric constant directly surrounding the absorption medium, said outer layer being made from a carbon black loaded Tefzel.
Claim 4
Dependent Claim
67 words
A high frequency attenuation cable core, comprising: at least one conductor; dielectric surrounding the conductor; a high frequency energy absorption mdium for attenuating high frequency energy propagating through the core in use, the absorption medium surrounding the dielectric; and an outer layer made from material having a high complex dielectric constant directly surrounding the absorption medium, said outer layer being made from a carbon black loaded Tefzel.
Claim 5
Dependent Claim
66 words
A high frequency attenuation cable core, comprising: at least one conductor; dielectric surrounding the conductor; a high frequency energy absorption medium for attenuating high frequency energy propagating through the core in use, the absorption medium surrounding the dielectric; and an outer layer made from material having a high complex dielectric constant directly surrounding the absorption medium, said outer layer being made from a ferrite loaded polymer.
Claim 6
Dependent Claim
66 words
A high frequency attenuation cable core, comprising: at least one conductor; dielectric surrounding the conductor; a high frequency energy absorption medium for attenuating high frequency energy propagating through the core in use, the absorption medium surrounding the dielectric; and an outer layer made from material having a high complex dielectric constant directly surrounding the absorption medium, said outer layer being made from a ferrite loaded polymer.
Claim 7
Dependent Claim
66 words
A high frequency attenuation cable core, comprising: at least one conductor; dielectric surrounding the conductor; a high frequency energy absorption medium for attenuating high frequency energy propagating through the core in use, the absorption medium surrounding the dielectric; and an outer layer made from material having a high complex dielectric constant directly surrounding the absorption medium, said outer layer being made from an aluminum loaded polymer.
Claim 8
Dependent Claim
66 words
A high frequency attenuation cable core, comprising: at least one conductor; dielectric surrounding the conductor; a high frequency energy absorption medium for attenuating high frequency energy propagating through the core in use, the absorption medium surrounding the dielectric; and an outer layer made from material having a high complex dielectric constant directly surrounding the absorption medium, said outer layer being made from an aluminum loaded polymer.
Claim 9
Dependent Claim
94 words
A high frequency attenuation harness comprising: a plurality of high frequency attenuation cores, wherein each core comprises: at least one conductor; dielectric surrounding the conductor; a high frequency energy absorption medium for attenuating high frequency energy propagating through the core in use, the absorption medium surrounding the dielectric; and an outer layer made from material having a high complex dielectric constant directly surrounding the absorption medium, said outer layer being made from a titanate loaded polymer; and the plurality of cores surrounded by a common EMI shielding for preventing EMI from entering the cores.
Claim 10
Dependent Claim
94 words
A high frequency attenuation harness comprising: a plurality of high frequency attenuation cores, wherein each core comprises: at least one conductor; dielectric surrounding the conductor; a high frequency energy absorption medium for attenuating high frequency energy propagating through the core in use, the absorption medium surrounding the dielectric; and an outer layer made from material having a high complex dielectric constant directly surrounding the absorption medium, said outer layer being made from a titanate loaded polymer; and the plurality of cores surrounded by a common EMI shielding for preventing EMI from entering the cores.
Claim 11
Dependent Claim
95 words
A high frequency attenuation harness comprising: a plurality of high frequency attenuation cores, wherein each core comprises: at least one conductor; dielectric surrounding the conductor; a high frequency energy absorption medium for attenuating high frequency energy propagating through the core in use, the absorption medium surrounding the dielectric; and an outer layer made from material having a high complex dielectric constant directly surrounding the absorption medium, said outer layer being made from a carbon black loaded Tefzel; and the plurality of cores surrounded by a common EMI shielding for preventing EMI from entering the cores.
Claim 12
Dependent Claim
95 words
A high frequency attenuation harness comprising: a plurality of high frequency attenuation cores, wherein each core comprises: at least one conductor; dielectric surrounding the conductor; a high frequency energy absorption medium for attenuating high frequency energy propagating through the core in use, the absorption medium surrounding the dielectric; and an outer layer made from material having a high complex dielectric constant directly surrounding the absorption medium, said outer layer being made from a carbon black loaded Tefzel; and the plurality of cores surrounded by a common EMI shielding for preventing EMI from entering the cores.
Claim 13
Dependent Claim
94 words
A high frequency attenuation harness comprising: a plurality of high frequency attenuation cores, wherein each core comprises: at least one conductor; dielectric surrounding the conductor; a high frequency energy absorption mdium for attenuating high frequency energy propagating through the core in use, the absorption medium surrounding the dielectric; and an outer layer made from material having a high complex dielectric constant directly surrounding the absorption medium, said outer layer being made from a ferrite loaded polymer; and the plurality of cores surrounded by a common EMI shielding for preventing EMI from entering the cores.
Claim 14
Dependent Claim
94 words
A high frequency attenuation harness comprising: a plurality of high frequency attenuation cores, wherein each core comprises: at least one conductor; dielectric surrounding the conductor; a high frequency energy absorption mdium for attenuating high frequency energy propagating through the core in use, the absorption medium surrounding the dielectric; and an outer layer made from material having a high complex dielectric constant directly surrounding the absorption medium, said outer layer being made from a ferrite loaded polymer; and the plurality of cores surrounded by a common EMI shielding for preventing EMI from entering the cores.
Claim 15
Dependent Claim
94 words
A high frequency attenuation harness comprising: a plurality of high frequency attenuation cores, wherein each core comprises: at least one conductor; dielectric surrounding the conductor; a high frequency energy absorption medium for attenuating high frequency energy propagating through the core in use, the absorption medium surrounding the dielectric; and an outer layer made from material having a high complex dielectric constant directly surrounding the absorption medium, said outer layer being made from an aluminum loaded polymer; and the plurality of cores surrounded by a common EMI shielding for preventing EMI from entering the cores.
Claim 16
Dependent Claim
94 words
A high frequency attenuation harness comprising: a plurality of high frequency attenuation cores, wherein each core comprises: at least one conductor; dielectric surrounding the conductor; a high frequency energy absorption medium for attenuating high frequency energy propagating through the core in use, the absorption medium surrounding the dielectric; and an outer layer made from material having a high complex dielectric constant directly surrounding the absorption medium, said outer layer being made from an aluminum loaded polymer; and the plurality of cores surrounded by a common EMI shielding for preventing EMI from entering the cores.
Claim 17
Dependent Claim
114 words
A high frequency attenuation harness comprising: a plurality of high frequency attenuation cables wherein each cable includes: a core having at least one conductor; dielectric surrounding the conductor; and a high frequency absorption medium for attenuating high frequency energy passing through the cable in use, the absorption medium surrounding the dielectric; an outer layer made from material having a high complex dielectric constant directly surrounding the absorption medium, said outer layer being made from a titanate loaded polymer; and EMI shielding means for preventing EMI from entering the cores surrounding each core; and an electrically conductive outer layer surrounding each EMI shielding means; the plurality of cables being surrounded by a protective outer jacket.
Claim 18
Dependent Claim
114 words
A high frequency attenuation harness comprising: a plurality of high frequency attenuation cables wherein each cable includes: a core having at least one conductor; dielectric surrounding the conductor; and a high frequency absorption medium for attenuating high frequency energy passing through the cable in use, the absorption medium surrounding the dielectric; an outer layer made from material having a high complex dielectric constant directly surrounding the absorption medium, said outer layer being made from a titanate loaded polymer; and EMI shielding means for preventing EMI from entering the cores surrounding each core; and an electrically conductive outer layer surrounding each EMI shielding means; the plurality of cables being surrounded by a protective outer jacket.
Claim 19
Dependent Claim
115 words
A high frequency attenuation harness comprising: a plurality of high frequency attenuation cables wherein each cable includes: a core having at least one conductor; dielectric surrounding the conductor; and a high frequency absorption medium for attenuating high frequency energy passing through the cable in use, the absorption medium surrounding the dielectric; an outer layer made from material having a high complex dielectric constant directly surrounding the absorption medium, said outer layer being made from a carbon black loaded Tefzel; and EMI shielding means for preventing EMI from entering the cores surrounding each core; and an electrically conductive outer layer surrounding each EMI shielding means; the plurality of cables being surrounded by a protective outer jacket.
Claim 20
Dependent Claim
115 words
A high frequency attenuation harness comprising: a plurality of high frequency attenuation cables wherein each cable includes: a core having at least one conductor; dielectric surrounding the conductor; and a high frequency absorption medium for attenuating high frequency energy passing through the cable in use, the absorption medium surrounding the dielectric; an outer layer made from material having a high complex dielectric constant directly surrounding the absorption medium, said outer layer being made from a carbon black loaded Tefzel; and EMI shielding means for preventing EMI from entering the cores surrounding each core; and an electrically conductive outer layer surrounding each EMI shielding means; the plurality of cables being surrounded by a protective outer jacket.
Claim 21
Dependent Claim
114 words
A high frequency attenuation harness comprising: a plurality of high frequency attenuation cables wherein each cable includes: a core having at least one conductor; dielectric surrounding the conductor; and a high frequency absorption medium for attenuating high frequency energy passing through the cable in use, the absorption medium surrounding the dielectric; an outer layer made from material having a high complex dielectric constant directly surrounding the absorption medium said outer layer being made from a ferrite loaded polymer; and EMI shielding means for preventing EMI from entering the cores surrounding each core; and an electrically conductive outer layer surrounding each EMI shielding means; the plurality of cables being surrounded by a protective outer jacket.
Claim 22
Dependent Claim
114 words
A high frequency attenuation harness comprising: a plurality of high frequency attenuation cables wherein each cable includes: a core having at least one conductor; dielectric surrounding the conductor; and a high frequency absorption medium for attenuating high frequency energy passing through the cable in use, the absorption medium surrounding the dielectric; an outer layer made from material having a high complex dielectric constant directly surrounding the absorption medium said outer layer being made from a ferrite loaded polymer; and EMI shielding means for preventing EMI from entering the cores surrounding each core; and an electrically conductive outer layer surrounding each EMI shielding means; the plurality of cables being surrounded by a protective outer jacket.
Claim 23
Dependent Claim
113 words
A high frequency attenuation harness comprising: a plurality of high frequency attenuation cables wherein each cable includes: a core having at least one conductor; dielectric surrounding the conductor; and a high frequency absorption medium for attenuating high frequency energy passing through the cable in use, the absorption medium surrounding the dielectric; an outer layer made from material having a high complex dielectric constant directly surrounding the absorption medium, said outer layer being made from an aluminum loaded polymer; and EMI shielding means for preventing EMI from entering the cores surrounding each core; and an electrically conductive outerlayer surrounding each EMI shielding means; the plurality of cables being surrounded by a protective outer jacket.
Claim 24
Dependent Claim
113 words
A high frequency attenuation harness comprising: a plurality of high frequency attenuation cables wherein each cable includes: a core having at least one conductor; dielectric surrounding the conductor; and a high frequency absorption medium for attenuating high frequency energy passing through the cable in use, the absorption medium surrounding the dielectric; an outer layer made from material having a high complex dielectric constant directly surrounding the absorption medium, said outer layer being made from an aluminum loaded polymer; and EMI shielding means for preventing EMI from entering the cores surrounding each core; and an electrically conductive outerlayer surrounding each EMI shielding means; the plurality of cables being surrounded by a protective outer jacket.
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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) | 1988-02-12 | 1988-08-13 | 1989-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-12 | 1992-08-13 | 1993-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-12 | 1996-08-13 | 1997-02-12 | $7700.00 | Window Closed / Lapsed |