US3748371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulated cable with wire for slitting a protective sheath
Assignee: Telefonaktiebolaget LM Ericsson AB
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Filing: 1972-05-18
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Granted: 1973-07-24
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Expires: 1992-05-18
Abstract
Abstract A cable having an outer protective covering or sheath enclosing one or more insulated conductors and a cutting wire or rip cord intended for slitting the covering, the cutting wire being located under a longitudinal notch on the inner side of the covering with the position of the cutting wire being marked on the outer surface of the covering, the marking having the form of a longitudinal notch or two parallel ridges.
Inventors
- 👤 O Krook
- 👤 S Nordblad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:20
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/38; H01B7/385; H01B7/17; H01B7/18; H01B7/184; H01B7/22; H01B7/221
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
83 words
An electrical cable comprising at least one insulated conductor, a cutting wiRe extending longitudinally along said insulated conductor, and a protective sheath surrounding said insulated conductor and cutting wire, the inner surface of said sheath being provided with a first longitudinally extending groove for accommodating said cutting wire to constrain the location thereof, and the outer surface of said sheath being provided with longitudinally extending means for mechanically guiding the movement of a cutting tool to a longitudinal path opposite said cutting wire.
Claim 2
Dependent Claim
83 words
An electrical cable comprising at least one insulated conductor, a cutting wiRe extending longitudinally along said insulated conductor, and a protective sheath surrounding said insulated conductor and cutting wire, the inner surface of said sheath being provided with a first longitudinally extending groove for accommodating said cutting wire to constrain the location thereof, and the outer surface of said sheath being provided with longitudinally extending means for mechanically guiding the movement of a cutting tool to a longitudinal path opposite said cutting wire.
Claim 3
Dependent Claim
23 words
The cable of claim 1 wherein said longitudinally extending means comprises a second longitudinally extending groove parallel to said first longitudinally extending groove.
Claim 4
Dependent Claim
24 words
The cable of claim 1 wherein said longitudinally extending means comprises two longitudinally extending ridges parallel to and straddling said first longitudinally extending groove.
Claim 5
Dependent Claim
15 words
The cable of claim 1 wherein said cutting wire is of a fibrous insulating material.
Claim 6
Dependent Claim
16 words
The cable of claim 1 wherein said cutting wire is further sheathed with a protective layer.
References Cited (Backward Citations)
US1969764A
Cited
US2147337A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-23 | 1977-01-22 | 1977-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-23 | 1981-01-22 | 1981-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-23 | 1985-01-22 | 1985-07-24 | $7700.00 | Window Closed / Lapsed |