Patent US3206542A successfully refreshed from Google Patents.
US3206542A
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US
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Composite dielectric material for wires and cables
Assignee: Associated Electrical Industries Ltd
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Filing: 1962-10-18
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Granted: 1965-09-14
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Expires: 1982-10-18
Abstract
Abstract A composite dielectric sheath for an electric conductor wire or cable comprises an inner layer of vulcanized butyl rubber bonded to an outer layer of vulcanized chlorosulphonated polyethylene. Optionally an additional layer of chlorosulphonated polyethylene is provided between the wire and the butyl rubber. The layers may be applied to the conductor in an unvulcanized or partially vulcanized form and become bonded together during the final vulcanization. The resultant wire or cable is resistant to ozone, fire, moisture, oil and solvents.
Inventors
- 👤 Dawson Leslie Norman
- 👤 Bennett Harold Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:43
CPC Classifications
B; B32; B32B; B32B25/00; H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/441; H01B7/00; H01B7/17; H01B7/28; H01B7/282; B29; B29L; B29L2031/00; B29L2031/34; B29L2031/3462; Y; Y02; Y02A; Y02A30/00; Y02A30/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A ELECTRICAL ELEMENT COMPRISING AT LEAST ONE ELECTRICAL CONDUCTOR WIRE, SURROUNDED BY A COMPOSITE DIELECTRIC SHEATH COMPRISING AN INNER LAYER OF VULCANIZED CHLOROSULPHONATED POLYETHYLENE, AN INTERMEDIATE LAYER OF VULCANIZED BUTYL RUBBER BONDED THERETO, AND AN OUTER LAYER OF VULCANIZED CHLOROSULPHONATED POLYETHYLENE BONDED TO SAID INTERMEDIATE LAYER.
Claim 2
Dependent Claim
46 words
A ELECTRICAL ELEMENT COMPRISING AT LEAST ONE ELECTRICAL CONDUCTOR WIRE, SURROUNDED BY A COMPOSITE DIELECTRIC SHEATH COMPRISING AN INNER LAYER OF VULCANIZED CHLOROSULPHONATED POLYETHYLENE, AN INTERMEDIATE LAYER OF VULCANIZED BUTYL RUBBER BONDED THERETO, AND AN OUTER LAYER OF VULCANIZED CHLOROSULPHONATED POLYETHYLENE BONDED TO SAID INTERMEDIATE LAYER.
References Cited (Backward Citations)
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Cited
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US2749323A
Cited
US2873227A
Cited
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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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |