Patent US4456785A successfully refreshed from Google Patents.
US4456785A
Expired / Lapsed
US
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Shielded cable and method of manufacture thereof
Assignee: CABLEC Corp A DE CORP
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Filing: 1982-09-17
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Granted: 1984-06-26
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Expires: 2002-09-17
Abstract
Abstract A shielded cable is provided having good electrical properties and which may be easily terminated. The cable includes an insulated conductor which is encased within a thermoplastic tape, a supported tape, and a metallic shield. The tapes are bonded together during a heating step so that any gaps or voids are eliminated by thermoplastic flow. They may also be peeled as a unit from the insulation during a terminating operation.
Inventors
- 👤 James Kushner
- 👤 Walter F. Constantine
- 👤 Dhiru Radadia
- 👤 Louis S. Codega
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:00
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/02; H01B7/0241; H01B9/00; H01B9/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
101 words
A shielded cable comprising: a conductor; a layer of insulation surrounding said conductor; a first helically wound unsupported thermoplastic tape surrounding and bonded to said insulation layer; a second helically wound supported tape surrounding and bonded to said first tape, the bond between said first and second tapes being stronger than said bond between said insulation and said first tape such that said first and second tapes are peelable helically and as a unit from said insulation, said first and second tapes being substantially free of gaps due to tape overlap; and a layer of conducting material surrounding said second tape.
Claim 2
Dependent Claim
101 words
A shielded cable comprising: a conductor; a layer of insulation surrounding said conductor; a first helically wound unsupported thermoplastic tape surrounding and bonded to said insulation layer; a second helically wound supported tape surrounding and bonded to said first tape, the bond between said first and second tapes being stronger than said bond between said insulation and said first tape such that said first and second tapes are peelable helically and as a unit from said insulation, said first and second tapes being substantially free of gaps due to tape overlap; and a layer of conducting material surrounding said second tape.
Claim 3
Dependent Claim
30 words
A shielded cable as defined claim 1 wherein said second tape includes a woven base, said first tape being at least partially integrated within the pores of said woven base.
Claim 4
Dependent Claim
16 words
A shielded cable as defined in claim 2 wherein said woven base is made from nylon.
Claim 5
Dependent Claim
23 words
A shielded cable as defined in claim 1 wherein said second tape includes a skim face of semiconducting material facing such first tape.
Claim 6
Dependent Claim
22 words
A shielded cable as defined in claims 1 or 4 including a semiconducting shield between said conductor and said layer of insulation.
Claim 7
Dependent Claim
15 words
A shielded cable as defined in claim 1 wherein said first tape is not vulcanized.
Claim 8
Independent Claim
126 words
A method of manufacturing a shielded cable comprising the steps of: providing a conductor having a surrounding layer of insulation; helically wrapping a non-supported thermoplastic tape about said insulation; helically wrapping a supported tape about said thermoplastic tape; applying a metallic tape shield about said supported tape; heating said conductor, insulation, tapes, and metallic tape shield such that said non-supported thermoplastic tape softens and flows into any gaps caused by overlapping portions thereof, a relatively weak bond being formed between said insulation and said non-supported tape and a relatively strong bond being formed between said non-supported tape and said supported tape whereby said non-supported tape and said supported tape can be peeled helically as one layer from said insulation when said metallic tape shield is removed.
Claim 9
Independent Claim
126 words
A method of manufacturing a shielded cable comprising the steps of: providing a conductor having a surrounding layer of insulation; helically wrapping a non-supported thermoplastic tape about said insulation; helically wrapping a supported tape about said thermoplastic tape; applying a metallic tape shield about said supported tape; heating said conductor, insulation, tapes, and metallic tape shield such that said non-supported thermoplastic tape softens and flows into any gaps caused by overlapping portions thereof, a relatively weak bond being formed between said insulation and said non-supported tape and a relatively strong bond being formed between said non-supported tape and said supported tape whereby said non-supported tape and said supported tape can be peeled helically as one layer from said insulation when said metallic tape shield is removed.
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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) | 1987-06-26 | 1987-12-26 | 1988-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-26 | 1991-12-26 | 1992-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-26 | 1995-12-26 | 1996-06-26 | $7700.00 | Window Closed / Lapsed |