US3634604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closed cell elastomeric sponge power cable terminator
Assignee: G&W Electric Specialty Co
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Filing: 1970-11-09
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Granted: 1972-01-11
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Expires: 1990-11-09
Abstract
Abstract The closed cell elastomeric molded cone system of the invention essentially consists of a compressible dielectric material and thus, has the capability of accommodating a large range of cable diameters for a given cone size. Two sections of compressible elastomeric material, each having special properties, are bonded together to form the complete molded cone. The bonded cone assembly has the shape of a cylinder which matches the interior contour of its rigid insulator containment cup.
Inventors
- 👤 George E Lusk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:15
CPC Classifications
H; H02; H02G; H02G15/00; H02G15/02; H02G15/06; H02G15/064; H02G15/068
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
89 words
A power cable terminator comprising a base section and a forward section bonded together in interfitting relation to form a cylindrical unit, a tubular housing of rigid insulator material in surrounding relation with the cylindrical walls of the unit, whereby to provide mechanical stability to the bonded sections, and each section having an opening extending through the same permitting passage of the cable, both of said sections consisting of a compressible closed cell elastomeric sponge, and the elastomeric sponge material of said base section being purposely made electrically conductive.
Claim 2
Dependent Claim
89 words
A power cable terminator comprising a base section and a forward section bonded together in interfitting relation to form a cylindrical unit, a tubular housing of rigid insulator material in surrounding relation with the cylindrical walls of the unit, whereby to provide mechanical stability to the bonded sections, and each section having an opening extending through the same permitting passage of the cable, both of said sections consisting of a compressible closed cell elastomeric sponge, and the elastomeric sponge material of said base section being purposely made electrically conductive.
Claim 3
Dependent Claim
42 words
A power cable terminator as defined by claim 1, wherein the base section is shaped to provide the desired dielectric field distribution in the insulating section of the bonded unit and the cable insulation adjacent to the terminus of the cable shield.
Claim 4
Dependent Claim
102 words
A power cable terminator as defined by claim 1, wherein the base section has an opening disposed longitudinally therein and contiguous to a tapering cavity also formed in the base section in alignment with the opening, and wherein the forward section includes a cylindrical forward part and a tapering part which has interfitting relation with the cavity of the base section, said forward section also having an opening extending longitudinally thereof and which aligns with the opening in the base section when the sections are in assembled interfitting relation for receiving the power cable to which the terminator is to be applied.
Claim 5
Dependent Claim
127 words
A power cable terminator comprising a base section formed of a compressible closed cell elastomeric sponge and which is electrically conductive, said base section having an opening extending longitudinally and a cavity formed therein in alignment with and contiguous to the opening, the cavity having a shape which tapers inwardly toward its base end, a forward section also consisting of a compressible closed cell elastomeric sponge and which has a tapering exterior part interfitting with the cavity in the base section, said forward section also having an opening extending longitudinally thereof and which aligns with the opening in the base section, said sections being assembled into a cylindrical unit, and a tubular housing of rigid insulator material in surrounding relation with the cylindrical walls of the unit.
Claim 6
Dependent Claim
127 words
A power cable terminator comprising a base section formed of a compressible closed cell elastomeric sponge and which is electrically conductive, said base section having an opening extending longitudinally and a cavity formed therein in alignment with and contiguous to the opening, the cavity having a shape which tapers inwardly toward its base end, a forward section also consisting of a compressible closed cell elastomeric sponge and which has a tapering exterior part interfitting with the cavity in the base section, said forward section also having an opening extending longitudinally thereof and which aligns with the opening in the base section, said sections being assembled into a cylindrical unit, and a tubular housing of rigid insulator material in surrounding relation with the cylindrical walls of the unit.
Claim 7
Dependent Claim
27 words
A power cable terminator as defined by claim 4, wherein the closed cell elastomeric sponge material of the base and forward sections consists of a silicone elastomer.
Claim 8
Dependent Claim
27 words
A power cable terminator as defined by claim 4, wherein the closed cell elastomeric sponge material of the base and forward sections consists of an ethylene-propylene elastomer.
Claim 9
Dependent Claim
47 words
A power cable terminator as defined by claim 4, wherein the closed cell elastomeric sponge material of the base and forward sections consists of a silicone elastomer having a density of approximately 0.019 lbs. per cubic inch with maximum cell diameters of from 0.40 to 0.55 millimeters.
Claim 10
Dependent Claim
47 words
A power cable terminator as defined by claim 4, wherein the closed cell elastomeric sponge material of the base and forward sections consists of an ethylene-propylene elastomer having a density of approximately 0.009 lbs. per cubic inch with maximum cell diameters of from 0.32 to 0.21 millimeters.
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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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |