Patent US3561797A successfully refreshed from Google Patents.
US3561797A
Expired / Lapsed
US
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Coupling for gas-tight connection of two tubular casing sections of a pressure gas insulated switch plant
Assignee: BBC Brown Boveri AG Germany
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Filing: 1969-04-08
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Granted: 1971-02-09
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Expires: 1989-04-08
Abstract
Abstract In a coupling for the gastight connection of two coaxial tubular casing sections of a pressure gas insulated switch plant which enclose electrical components the sections are provided with outwardly directed end flanges, are spaced apart axially, and the spacing between the end flanges is bridged over by two tubular coupling parts which have outwardly directed, bolted together flanges meeting in a sealed joint and inwardly directed flanges in alignment with the end flanges on the tubular casing sections so as to form circular joints between the confronting end faces of the outwardly and inwardly directed flanges. The inwardly directed flanges on the coupling parts are secured to the outwardly directed flanges on the tubular casing sections by means of a series of bolts and a flange ring and which also provides a seal structure for the circular joint.
Inventors
- 👤 Karl-Heinz Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:49
CPC Classifications
H; H02; H02B; H02B13/00; H02B13/02; H02B13/035; H02B13/045; F; F16; F16J; F16J13/00; F16J13/02; F16L; F16L23/00; F16L23/02; H01; H01H; H01H33/00; H01H33/02; H01H33/53; H01H33/56; H02G; H02G5/00; H02G5/06; H02G5/063
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
147 words
In a coupling structure effecting a gastight connection between the ends of two axially spaced tubular casing sections of a pressure-gas insulated switch plant, a removable tubular casing part extending between and interconnecting said tubular casing sections in axially spaced relation, said removable tubular casing part being constituted by two tubular portions provided with juxtaposed outwardly extending flanges on one end bolted together in a sealed joint and inwardly extending flanges on the other end which confront correspondingly located outwardly extending flanges on the ends of said axially spaced casing sections thereby to establish circular joints extending parallel with the axis of said casing sections across the end faces of said confronting inwardly and outwardly extending flanges, each of said circular joints being bridged over by a flange ring, and means bolting said flange rings into face-to-face sealing contact with said confronting inwardly and outwardly extending flanges.
Claim 2
Dependent Claim
147 words
In a coupling structure effecting a gastight connection between the ends of two axially spaced tubular casing sections of a pressure-gas insulated switch plant, a removable tubular casing part extending between and interconnecting said tubular casing sections in axially spaced relation, said removable tubular casing part being constituted by two tubular portions provided with juxtaposed outwardly extending flanges on one end bolted together in a sealed joint and inwardly extending flanges on the other end which confront correspondingly located outwardly extending flanges on the ends of said axially spaced casing sections thereby to establish circular joints extending parallel with the axis of said casing sections across the end faces of said confronting inwardly and outwardly extending flanges, each of said circular joints being bridged over by a flange ring, and means bolting said flange rings into face-to-face sealing contact with said confronting inwardly and outwardly extending flanges.
Claim 3
Dependent Claim
44 words
A coupling structure as defined in claim 1 for axially spaced tubular sections of a pressure-gas insulated switch plant wherein said bolting means includes two series of circumferentially spaced bolts which extend respectively from said flange ring through said inwardly and outwardly extending flanges.
Claim 4
Dependent Claim
58 words
A coupling structure as defined in claim 1 for axially spaced tubular sections of a pressure-gas insulated switch plant wherein said bolting means includes a single series of circumferentially spaced bolts which extend from said flange ring through said circular joint and an exterior clamping ring having end flanges bearing respectively against said inwardly and outwardly extending flanges.
Claim 5
Dependent Claim
51 words
A coupling structure as defined in claim 3 for axially spaced tubular sections of a pressure-gas insulated switch plant wherein the end face of one of said inwardly and outwardly extending flanges is provided with a series of bores in which the bolts are received for passage through the circular joint.
Claim 6
Dependent Claim
50 words
A coupling structure as defined in claim 3 for axially spaced tubular sections of a pressure-gas insulated switch plant wherein the end faces of said inwardly and outwardly extending flanges are provided with a series of confronting half-bores in which the bolts are received for passage through the circular joint.
Claim 7
Dependent Claim
213 words
In a coupling structure effecting a gastight connection between the ends of two axially spaced tubular casing sections of a pressure-gas insulated switch plant, a removable tubular casing part extending between and interconnecting said tubular casing sections in axially spaced relation, said removable tubular casing part being constituted by two tubular portions provided with juxtaposed outwardly extending flanges on one end bolted together in a sealed joint and inwardly extending flanges on the other end which confront correspondingly located outwardly extending flanges on the ends of said axially spaced casing sections thereby to establish circular joints extending parallel with the axis of said casing sections across the end faces of said confronting inwardly and outwardly extending flanges, each of said circular joints having in association therewith first and second flange rings located in face-to-face sealing contact respectively with said confronting inwardly and outwardly extending flanges, a series of circumferentially spaced clamping bolts extending between said flange rings and through said ciRcular joint, each said bolt including thereon at one end a first crowned pressure ring bearing against said flange rings and at the opposite end a second crowned pressure ring bearing against said confronting inwardly and outwardly extending flanges, and a ring-shaped elastic sheath secured to said flange rings and enclosing said bolts.
Claim 8
Dependent Claim
213 words
In a coupling structure effecting a gastight connection between the ends of two axially spaced tubular casing sections of a pressure-gas insulated switch plant, a removable tubular casing part extending between and interconnecting said tubular casing sections in axially spaced relation, said removable tubular casing part being constituted by two tubular portions provided with juxtaposed outwardly extending flanges on one end bolted together in a sealed joint and inwardly extending flanges on the other end which confront correspondingly located outwardly extending flanges on the ends of said axially spaced casing sections thereby to establish circular joints extending parallel with the axis of said casing sections across the end faces of said confronting inwardly and outwardly extending flanges, each of said circular joints having in association therewith first and second flange rings located in face-to-face sealing contact respectively with said confronting inwardly and outwardly extending flanges, a series of circumferentially spaced clamping bolts extending between said flange rings and through said ciRcular joint, each said bolt including thereon at one end a first crowned pressure ring bearing against said flange rings and at the opposite end a second crowned pressure ring bearing against said confronting inwardly and outwardly extending flanges, and a ring-shaped elastic sheath secured to said flange rings and enclosing said bolts.
Claim 9
Dependent Claim
80 words
A coupling structure as defined in claim 6 for axially spaced tubular sections of a pressure-gas insulated switch plant wherein said crowned pressure rings are provided with circular pressure faces on one side in contact respectively with said flange rings and said confronting inwardly and outwardly extending flange rings, and a circular pressure face on the opposite side to which pressure is applied from the bolt, all of said circular pressure faces having their centers located along a common line.
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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |