Patent US3718749A successfully refreshed from Google Patents.
US3718749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for coupling high voltage cables
Assignee: Joslyn Corp
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Filing: 1971-07-19
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Granted: 1973-02-27
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Expires: 1991-07-19
Abstract
Abstract There is provided a coupling assembly for connecting high voltage cables and including a tubular housing of insulating material. A pair of tubular elastomeric insulating members are inserted into respective ends of the housing for receiving the end portions of a respective cable. Retainers close the opposite ends of the housing. A conductive inner shield is in the housing bore spaced from opposite ends of the housing. Suitable connector means connect the conductors of the cables in the end-to-end relation within the housing shield. The shield is electrically connected to the conductor so as to eliminate voltage gradient in the air spaces within the coupler. Means are provided within the housing resiliently loading the tubular elastomeric insulating members, thereby maintaining a void-free insulation and moisture seals throughout the thermal operating range of the coupler.
Inventors
- 👤 F Cunningham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:30
CPC Classifications
H; H02; H02G; H02G15/00; H02G15/08; H02G15/10; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/5313; Y10T29/532; Y10T29/53209; Y10T29/53213; Y10T29/53239; Y10T29/53796; Y10T29/53896
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
114 words
In combination, a pair of high voltage cables and a coupling assembly joining said cables in end-to-end relation, said coupling including an insulating housing a bore through said housing, a pair of tubular elastomeric insulating members in respective ends of said housing bore and surrounding respective ends of said cables, means connecting the conductors of said cables in end-to-end relation, conductive shield means along the bore of said housing and spaced from opposite ends thereof, conductive means connecting said conductors electrically to said shielding means, bias means within said housing resiliently loading said elastomeric members in sealing relation with said cable ends and said housing, and means retaining said elastomeric members within said housing.
Claim 2
Dependent Claim
114 words
In combination, a pair of high voltage cables and a coupling assembly joining said cables in end-to-end relation, said coupling including an insulating housing a bore through said housing, a pair of tubular elastomeric insulating members in respective ends of said housing bore and surrounding respective ends of said cables, means connecting the conductors of said cables in end-to-end relation, conductive shield means along the bore of said housing and spaced from opposite ends thereof, conductive means connecting said conductors electrically to said shielding means, bias means within said housing resiliently loading said elastomeric members in sealing relation with said cable ends and said housing, and means retaining said elastomeric members within said housing.
Claim 3
Dependent Claim
77 words
A coupling assembly comprising a tubular housing of insulating material and an external low resistance casing; a pair of tubular elastomeric insulating members in respective ends of said housing and each enclosing the end portions of a cable; retainers at the respective opposite ends of said housing; connector means connecting the central conductors of the cables in end-to-end relation intermediate said insulating members; and bias means within said housing for resiLiently loading said tubular elastomeric insulating members.
Claim 4
Dependent Claim
77 words
A coupling assembly comprising a tubular housing of insulating material and an external low resistance casing; a pair of tubular elastomeric insulating members in respective ends of said housing and each enclosing the end portions of a cable; retainers at the respective opposite ends of said housing; connector means connecting the central conductors of the cables in end-to-end relation intermediate said insulating members; and bias means within said housing for resiLiently loading said tubular elastomeric insulating members.
Claim 5
Independent Claim
154 words
A device for joining the end portions of high voltage cables having a first elongated tubular insulating member receiving said end portions, means conductively connecting said end portions, and second and third insulating members at opposite longitudinal extremities of said first member positioned between said end portions and said first member for reducing the tendency of corona to form at said longitudinal extremities, wherein the improvement comprises an assembly for retaining said second and third members in position between said end portions and said first member comprising a pair of split ring members positioned around each of said end portions, each of said ring members having an integral section positioned in abutment with said end portion and extending in the direction of the longitudinal axis of said end portion and radially inwardly extending projections for engaging said end portion, said assembly further comprising means for securing said ring members together around said end portion.
Claim 6
Independent Claim
154 words
A device for joining the end portions of high voltage cables having a first elongated tubular insulating member receiving said end portions, means conductively connecting said end portions, and second and third insulating members at opposite longitudinal extremities of said first member positioned between said end portions and said first member for reducing the tendency of corona to form at said longitudinal extremities, wherein the improvement comprises an assembly for retaining said second and third members in position between said end portions and said first member comprising a pair of split ring members positioned around each of said end portions, each of said ring members having an integral section positioned in abutment with said end portion and extending in the direction of the longitudinal axis of said end portion and radially inwardly extending projections for engaging said end portion, said assembly further comprising means for securing said ring members together around said end portion.
Claim 7
Independent Claim
105 words
A device for joining the end portions of high voltage cables having a first elongated tubular insulating member receiving said end portions of said cables, means conductively connecting said end portions of said cables, and means positioned between said end portions of said cables and the opposite longitudinal end portions of said first member for reducing the tendency of corona to form at said opposite longitudinal end portions of said first member, wherein the improvement comprises means within said first member for biasing said reducing means into position between said end portions of said cables and said opposite longitudinal end portions of said first member.
Claim 8
Independent Claim
105 words
A device for joining the end portions of high voltage cables having a first elongated tubular insulating member receiving said end portions of said cables, means conductively connecting said end portions of said cables, and means positioned between said end portions of said cables and the opposite longitudinal end portions of said first member for reducing the tendency of corona to form at said opposite longitudinal end portions of said first member, wherein the improvement comprises means within said first member for biasing said reducing means into position between said end portions of said cables and said opposite longitudinal end portions of said first member.
Claim 9
Dependent Claim
22 words
A device as set forth in claim 4 wherein said biasing means comprises a spring assembly adjustable to a preselected compression force.
Claim 10
Independent Claim
118 words
A device for joining the end portions of high voltage cables of the type having a central current carrying conductor and a conductive shielding drain surrounding said central conductor, said device having an elongated housing receiving said end portions and means conductively connecting said end portions, wherein the improvement comprises means for conductively connecting said drain to a source of ground or reference potential, said conductively connecting means comprising a conductive ring positioned about said drain, means for electrically connecting said drain to said conductively connecting means and a conductive member having a head portion forced fit into a hole of said conductive ring, said conductive member being electrically connected to a source of ground or reference potential.
Claim 11
Independent Claim
118 words
A device for joining the end portions of high voltage cables of the type having a central current carrying conductor and a conductive shielding drain surrounding said central conductor, said device having an elongated housing receiving said end portions and means conductively connecting said end portions, wherein the improvement comprises means for conductively connecting said drain to a source of ground or reference potential, said conductively connecting means comprising a conductive ring positioned about said drain, means for electrically connecting said drain to said conductively connecting means and a conductive member having a head portion forced fit into a hole of said conductive ring, said conductive member being electrically connected to a source of ground or reference potential.
Claim 12
Independent Claim
131 words
A device for joining the end portions of high voltage cables of the type having a central current carrying conductor and a conductive shielding drain surrounding said central conductor comprising an insulating housing, a bore through said housing, means within said housing bore conductively connecting said central conductors, a pair of insulating members at least partially within respective ends of said housing bore surrounding said end portions, a conductive shield along the bore of said housing and spaced from the opposite ends of said housing, conductive means within said bore electrically connecting the central conductors of said cables to said shield, bias means within said housing resiliently loading said insulating members in sealing relation with said end portions and said housing, and means for retaining said insulating members within said housing.
Claim 13
Independent Claim
131 words
A device for joining the end portions of high voltage cables of the type having a central current carrying conductor and a conductive shielding drain surrounding said central conductor comprising an insulating housing, a bore through said housing, means within said housing bore conductively connecting said central conductors, a pair of insulating members at least partially within respective ends of said housing bore surrounding said end portions, a conductive shield along the bore of said housing and spaced from the opposite ends of said housing, conductive means within said bore electrically connecting the central conductors of said cables to said shield, bias means within said housing resiliently loading said insulating members in sealing relation with said end portions and said housing, and means for retaining said insulating members within said housing.
Claim 14
Dependent Claim
48 words
A device as set forth in claim 7 wherein at least one of said pair of insulating members includes a garter type conductive ring aligned to conductively engage the drain of one of said cables for conductively connecting said drain to a source of reference or ground potential.
Claim 15
Dependent Claim
93 words
A device as set forth in claim 8 further comprising a pair of collector rings, each one of said pair of collector rings dispOsed at opposite ends of said housing and formed of a mass of electrically conductive material having a substantially greater mass than the mass of said garter type ring to thereby provide a good conductive contact for forming a conductive connection between said drain and a source of reference or ground potential and to provide an effective means for dissipating heat formed by the currents passing through said collector ring.
Claim 16
Dependent Claim
18 words
A device as set forth in claim 7 wherein said conductive means comprises a mass of metal mesh.
Claim 17
Dependent Claim
22 words
A device as set forth in claim 7 wherein said bias means comprises a spring assembly adjustable to a preselectable compressive force.
Claim 18
Dependent Claim
53 words
A device as set forth in claim 7 wherein said bias means comprises a first elongated, generally U-shaped member having slots spaced along its longitudinal direction, a second generally U-shaped member, guide means interconnecting said first and said second U-shaped members and spring members biasing said first and said second U-shaped members apart.
Claim 19
Dependent Claim
36 words
A device as set forth in claim 12 wherein said bias means further comprises retaining means selectively engaging at least one of said slots to maintain the bias of said bias means at a preselected value.
Claim 20
Dependent Claim
16 words
A device as set forth in claim 7 further comprising a conductive casing surrounding said housing.
Claim 21
Dependent Claim
24 words
A device as set forth in claim 14 wherein said housing comprises an integrally cast, dielectric polymer, joined together in situ with said casing.
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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) | 1976-02-27 | 1976-08-28 | 1977-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-27 | 1980-08-28 | 1981-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-27 | 1984-08-28 | 1985-02-27 | $7700.00 | Window Closed / Lapsed |