US4360704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moisture proof electrical cable
Assignee: Kabelmetal Electro GmbH
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Filing: 1980-12-18
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Granted: 1982-11-23
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Expires: 2000-12-18
Abstract
Abstract An insulated cable core is provided with a shield made of individual wires which are embedded in a first plastically deformable jacket which carries a water vapor impermeable sleeve made of wrapped or folded metal or metallized foil or ribbon whose adjoining edges are sealed. This sleeve carries a second plastically deformable jacket to be embedded in-between two such jackets. The usual protective covering is provided around the outer deformable jacket.
Inventors
- 👤 Peter Madry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:39
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/17; H01B7/28; H01B7/282; H01B7/2825; H01B9/00; H01B9/02; Y; Y02; Y02A; Y02A30/00; Y02A30/14
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
126 words
Electrical cable for medium and high voltages, and including a conductor core with insulating jacket covered by an electrically conductive layer, further comprising: a shield made of metallic, elongated elements such as ribbons or wires on the said layer; a first plastically deformable jacket on the layer and sealingly embedding said ribbons or wires of said shield; a water-vapor-impermeable sleeve on the first jacket and being comprised of a helically coiled metal or metallized ribbon having adjoining edges sealingly interconnected, the sleeve being sealed by the first jacket; a second, plastically deformable, water-proofing jacket on the sleeve and sealing the sleeve from its outside, the sleeve being sealingly embedded by and in between the first and second jackets; and protective cover means on the second jacket.
Claim 2
Dependent Claim
126 words
Electrical cable for medium and high voltages, and including a conductor core with insulating jacket covered by an electrically conductive layer, further comprising: a shield made of metallic, elongated elements such as ribbons or wires on the said layer; a first plastically deformable jacket on the layer and sealingly embedding said ribbons or wires of said shield; a water-vapor-impermeable sleeve on the first jacket and being comprised of a helically coiled metal or metallized ribbon having adjoining edges sealingly interconnected, the sleeve being sealed by the first jacket; a second, plastically deformable, water-proofing jacket on the sleeve and sealing the sleeve from its outside, the sleeve being sealingly embedded by and in between the first and second jackets; and protective cover means on the second jacket.
Claim 3
Dependent Claim
17 words
Cable as in claim 1, at least one of the first and second jackets being electrically conductive.
Claim 4
Dependent Claim
23 words
Cable as in claim 1, said plastic jackets including at least one of the following: a bituminous substance, chalk, carbon black, and graphite.
Claim 5
Dependent Claim
15 words
Cable as in claim 1, 2 or 3, said first and second jackets including methacrylicacidester.
Claim 6
Dependent Claim
11 words
Cable as in claim 1, the second jacket including a plasticizer.
Claim 7
Dependent Claim
15 words
Cable as in claim 1, 2, or 3, said first and second jackets including polyisobutylene.
Claim 8
Dependent Claim
13 words
Cable as in claim 1 or 5, the first jacket including voltage-stabilizing additives.
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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) | 1985-11-22 | 1986-05-24 | 1986-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-22 | 1990-05-24 | 1990-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-22 | 1994-05-24 | 1994-11-23 | $7700.00 | Window Closed / Lapsed |