Patent US4132857A successfully refreshed from Google Patents.
US4132857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical cable
Assignee: Union Carbide Corp
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Filing: 1971-08-12
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Granted: 1979-01-02
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Expires: 1991-08-12
Abstract
Abstract A means of obtaining improved adhesion of the jacket to the metal sheath of an electrical conductor involving the use of a dual layer film as the material for adhering the two to each other is disclosed. The dual layer film contains a film layer of an ethylene/acrylic acid copolymer or an ethylene/methacrylic acid copolymer or the ionomer salts thereof and a film layer of polyethylene or an ethylene/acrylyl ester copolymer or an ethylene/vinyl acetate copolymer.
Inventors
- 👤 Leonard S. Scarola
- 👤 Charles E. White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:44
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B27/32; B32B15/00; B32B15/04; B32B15/08; B32B27/30; B32B27/308; H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/441; H01B3/447; H01B7/00; H01B7/17; H01B7/18; H01B7/20; B32B2311/00; B32B2311/24; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/31928
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
An electrical cable consisting essentially of a conductor core, a metal cable sheathing surrounding said conductor core, a coextruded dual film laminate around said metal cable sheathing and an exterior polyethylene jacketing, said electrical cable having improved adhesion of the polyethylene jacket to the metal sheath with said polyethylene jacket adhered to said sheath by means of the coextruded dual film laminate of (I) a film layer of polyethylene and (II) a film layer of an ethylene/acrylic acid copolymer, said cable sheathing and jacketing surrounding said electrical conductor with said film layer (II) next to the metal sheath and said film layer (I) next to the polyethylene jacket.
Claim 2
Dependent Claim
108 words
An electrical cable consisting essentially of a conductor core, a metal cable sheathing surrounding said conductor core, a coextruded dual film laminate around said metal cable sheathing and an exterior polyethylene jacketing, said electrical cable having improved adhesion of the polyethylene jacket to the metal sheath with said polyethylene jacket adhered to said sheath by means of the coextruded dual film laminate of (I) a film layer of polyethylene and (II) a film layer of an ethylene/acrylic acid copolymer, said cable sheathing and jacketing surrounding said electrical conductor with said film layer (II) next to the metal sheath and said film layer (I) next to the polyethylene 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) | 1982-01-01 | 1982-07-03 | 1983-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-01 | 1986-07-03 | 1987-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-01 | 1990-07-03 | 1991-01-02 | $7700.00 | Window Closed / Lapsed |