Patent US3846578A successfully refreshed from Google Patents.
US3846578A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Splice for electric cables
Assignee: CABLEC Corp GREENWICH OFFICE PARK
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Filing: 1972-03-22
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Granted: 1974-11-05
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Expires: 1992-03-22
Abstract
Abstract The central conductors of aligned cables are provided with a mechanical and electrical interconnection at their opposing end portions where their respective insulating layers are cut back to expose these end portions. An insulating sleeve is applied in surrounding relation to the adjacent end portions of the cable to form a chamber extending around said interconnection and the respective cut-back insulating layers, the chamber being closed except for an inlet and an outlet. A filling material having a high dielectric constant is injected through said inlet while expelling air through said outlet until the chamber is substantially filled with the material, whereupon the outlet is closed and an additional amount of said material is forced through the inlet to place the chamber contents under superatmospheric pressure. The inlet is then closed to maintain the filling material under superatmospheric pressure in the chamber.
Inventors
- 👤 G Bahder
- 👤 F Garcia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:32
CPC Classifications
H; H02; H02G; H02G15/00; H02G15/08; H02G15/18; H02G15/003
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
124 words
In combination with a pair of axially aligned cables each having a central conductor and a surrounding insulating layer, said layers being cut back to expose opposing end portions of the conductors, a cable splice comprising a coupling member mechanically and electrically interconnecting said conductor end portions and coaxial therewith, insulating means forming a substantially closed annular chamber extending around said coupling member and insulating layers and having a filler inlet and an air outlet, said inlet and outlet being closed, said means including an insulating sleeve having integral portions surrounding said member and layers in spaced relation thereto, said sleeve having high dielectric properties and constituting the main electrical insulation of the splice, and a material of high dielectric constant filling said chamber.
Claim 2
Dependent Claim
124 words
In combination with a pair of axially aligned cables each having a central conductor and a surrounding insulating layer, said layers being cut back to expose opposing end portions of the conductors, a cable splice comprising a coupling member mechanically and electrically interconnecting said conductor end portions and coaxial therewith, insulating means forming a substantially closed annular chamber extending around said coupling member and insulating layers and having a filler inlet and an air outlet, said inlet and outlet being closed, said means including an insulating sleeve having integral portions surrounding said member and layers in spaced relation thereto, said sleeve having high dielectric properties and constituting the main electrical insulation of the splice, and a material of high dielectric constant filling said chamber.
Claim 3
Dependent Claim
15 words
The combination according to claiM 1, in which said filling material is under superatmospheric pressure.
Claim 4
Dependent Claim
43 words
The combination according to claim 1, comprising also a shield surrounding each insulating layer and cut back to expose a part of said layer surrounded by said filling material, said sleeve having opposite end portions surrounding the respective shields in sealed relation thereto.
Claim 5
Dependent Claim
38 words
The combination according to claim 3, comprising also an additional shield surrounding said sleeve and having end portions overlapping said opposite end portions of the sleeve, and means clamping said overlapping end portions to the respective cut-back shields.
Claim 6
Dependent Claim
13 words
The combination according to claim 1, comprising also a shield surrounding said sleeve.
Claim 7
Dependent Claim
20 words
The combination according to claim 4, in which said shield is in intimate contact with the sleeve and is semi-conducting.
Claim 8
Dependent Claim
21 words
The combination according to claim 1, in which said filling material has a substantially higher dielectric constant than said insulating layers.
Claim 9
Dependent Claim
22 words
The combination according to claim 1, in which said filling material is a compound adapted to set after injection into said chamber.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |