US3573341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressed-gas insulated electrical conductors employing expanded tubing cover design
Assignee: ABB Inc USA
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Filing: 1969-03-24
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Granted: 1971-04-06
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Expires: 1989-03-24
Abstract
Abstract A compressed insulated conductor system comprised of a substantially cylindrical-shaped metallic enclosure and a substantially cylindrical-shaped conductor positioned within the enclosure and held concentric therewith by means of annularshaped insulating spacers arranged at spaced intervals within and along the interior of the enclosure. The enclosure is filled with a compressed gas such as, for example,SF6. The spacers at opposite ends of each bus section are fixedly secured to the enclosure in such a manner as to seal the compressed gas within the interior of the enclosure. The enclosure at opposite ends thereof is so formed as to provide a bearing surface for one marginal edge of an end spacer, the opposite end of which is rigidly held in place by means of a duct cover end firmly secured within the enclosure and bearing against the second marginal surface of the end spacer. The spacer is provided with an annular-shaped groove around its exterior surface, which hollow space defined by the groove and the enclosure interior abutting thereagainst is filled with an epoxy material to firmly secure the spacer to the enclosure and to prevent any gaps between the adjacent surfaces of enclosure and end spacer, as well as preventing the escape of the compressed gas contained within the enclosure.
Inventors
- 👤 Howard W Graybill
- 👤 Roy H Albright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:50
CPC Classifications
H; H01; H01B; H01B9/00; H01B9/06; H01B9/0644; H01B9/0666; H01B9/0672; H02; H02G; H02G5/00; H02G5/06; H02G5/066
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
204 words
A bus assembly comprising: an annular-shaped conductive enclosure; an annular-shaped conductor positioned within said enclosure; and spacer means positioning and maintAining said conductor within said enclosure; said spacer means comprising an annular shaped member formed of insulating material having a central opening receiving said conductor and having a peripheral edge engaging the interior surface of said enclosure; a continuous groove being provided along said peripheral edge; the hollow space defined by said groove and the interior surface of said enclosure being filled with an epoxy material to prevent the passage of any gas through the above mentioned hollow space; said enclosure being provided with an integrally formed enlarged section at one end thereof with said section forming a continuous shoulder along the interior of said enclosure with the remaining portion of the enclosure; said peripheral edge being positioned to abut against said shoulder; and an annular-shaped enclosure cover section being telescoped within and secured to said one end of the enclosure, the end of said cover section projecting into said enclosure bearing against said peripheral edge to urge said peripheral edge against said shoulder and thereby rigidly maintain said peripheral edge in bearing relationship with the end of said cover section and said shoulder.
Claim 2
Dependent Claim
204 words
A bus assembly comprising: an annular-shaped conductive enclosure; an annular-shaped conductor positioned within said enclosure; and spacer means positioning and maintAining said conductor within said enclosure; said spacer means comprising an annular shaped member formed of insulating material having a central opening receiving said conductor and having a peripheral edge engaging the interior surface of said enclosure; a continuous groove being provided along said peripheral edge; the hollow space defined by said groove and the interior surface of said enclosure being filled with an epoxy material to prevent the passage of any gas through the above mentioned hollow space; said enclosure being provided with an integrally formed enlarged section at one end thereof with said section forming a continuous shoulder along the interior of said enclosure with the remaining portion of the enclosure; said peripheral edge being positioned to abut against said shoulder; and an annular-shaped enclosure cover section being telescoped within and secured to said one end of the enclosure, the end of said cover section projecting into said enclosure bearing against said peripheral edge to urge said peripheral edge against said shoulder and thereby rigidly maintain said peripheral edge in bearing relationship with the end of said cover section and said shoulder.
Claim 3
Dependent Claim
58 words
The assembly of claim 1 further comprising first and second gaskets; said first gasket being positioned between said peripheral edge and the end of said cover section; said second gasket being positioned between said peripheral edge and said shoulder; and said first and second gaskets cooperating to confine said epoxy to the immediate region of said continuous groove.
Claim 4
Dependent Claim
104 words
A bus system comprised of: plural bus assemblies of the type described in claim 1, said assemblies being aligned end to end; an annular-shaped assembly-joining enclosure being telescoped about and secured to cover sections of adjacent bus assemblies; said assembly-joining enclosure being provided with a yieldable section located intermediate its ends to allow for normal expansion and contraction of the system; a central conductive member connected to facing ends of the bus assemblies being joined; and said central conductive member being positioned within said assembly-joining enclosure and having a yieldable central section adapted to allow for normal expansion and contraction of the bus system.
Claim 5
Dependent Claim
63 words
The assembly of claim 1 wherein: said enclosure is provided with a plurality of openings arranged at spaced intervals along an imaginary line surrounding the enclosure and aligned with said continuous groove; said openings receiving said epoxy for filling the said hollow space; and threaded fastening means each being threadedly positioned within an associated opening sealing said enclosure after injection of said epoxy.
Claim 6
Dependent Claim
167 words
A bus assembly comprising: an annular-shaped conductive enclosure; an annular-shaped conductor positioned within said enclosure; and spacer means positioning and maintaining said conductor within said enclosure; said spacer means comprising an annular-shaped member formed of insulating material having a central opening receiving said conductor and having a peripheral edge engaging the interior surface of said enclosure; said enclosure being provided with an integrally formed enlarged section at one end thereof with said section forming a continuous shoulder along the interior of said enclosure with the remaining portion of the enclosure; the peripheral edge of said spacer being positioned to abut against said shoulder; and an annular-shaped enclosure cover section being telescoped within and secured to said one end of the enclosure, the end of said cover section projecting into said enclosure bearing against the peripheral edge of said spacer to urge said peripheral edge against said shoulder and thereby rigidly maintain said peripheral edge in bearing relationship with the end of said cover section and said shoulder.
Claim 7
Dependent Claim
167 words
A bus assembly comprising: an annular-shaped conductive enclosure; an annular-shaped conductor positioned within said enclosure; and spacer means positioning and maintaining said conductor within said enclosure; said spacer means comprising an annular-shaped member formed of insulating material having a central opening receiving said conductor and having a peripheral edge engaging the interior surface of said enclosure; said enclosure being provided with an integrally formed enlarged section at one end thereof with said section forming a continuous shoulder along the interior of said enclosure with the remaining portion of the enclosure; the peripheral edge of said spacer being positioned to abut against said shoulder; and an annular-shaped enclosure cover section being telescoped within and secured to said one end of the enclosure, the end of said cover section projecting into said enclosure bearing against the peripheral edge of said spacer to urge said peripheral edge against said shoulder and thereby rigidly maintain said peripheral edge in bearing relationship with the end of said cover section and said shoulder.
Claim 8
Dependent Claim
104 words
A bus system comprised of: plural bus assemblies of the Type described in claim 5, said assemblies being aligned end to end; an annular-shaped assembly-joining enclosure being telescoped about and secured to cover sections of adjacent bus assemblies; said assembly-joining enclosure being provided with a yieldable section located intermediate its ends to allow for normal expansion and contraction of the system; a central conductive member connected to facing ends of the bus assemblies being joined; and said central conductive member being positioned within said assembly-joining enclosure and having a yieldable central section adapted to allow for normal expansion and contraction of the bus system.
Claim 9
Dependent Claim
45 words
The assembly of claim 5 wherein said annular-shaped member is provided with a tapered configuration along each of its opposite faces which join the peripheral edge to the central opening such that the member decreases in thickness from said central opening toward said peripheral edge.
Claim 10
Dependent Claim
23 words
The assembly of claim 5 further comprising a metallic ring positioned within the central opening of said annular-shaped member and engaging said conductor.
Claim 11
Dependent Claim
94 words
The assembly of claim 8 wherein: said metallic ring is provided with a pair of cavities arranged on opposite sides of said ring; said conductor having a pair of openings each aligned with one of said cavities; a pair of metallic pins being coaxially aligned, each pin being positioned to pass through an associated one of said conductor openings and rest in one of said cavities; and bias means positioned between the facing ends of said pins to urge said pins toward their associated cavities and thereby lock said spacer member to said conductor.
Claim 12
Dependent Claim
19 words
The assembly of claim 5 wherein the interior space defined by said enclosure is filled with a compressed gas.
Claim 13
Dependent Claim
12 words
The assembly of claim 10 wherein said compressed gas is sulfur hexafluoride.
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) | 1974-04-05 | 1974-10-05 | 1975-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-05 | 1978-10-05 | 1979-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-05 | 1982-10-05 | 1983-04-06 | $7700.00 | Window Closed / Lapsed |