Patent US1949275A successfully refreshed from Google Patents.
US3921113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single-conductor transformer for high-voltage installations
Assignee: Siemens AG
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Filing: 1974-05-17
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Granted: 1975-11-18
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Expires: 1994-05-17
Abstract
Abstract A single-conductor transformer for installation in the metal encapsulation of a fluid-insulated, high-voltage installation has at least one iron core with a secondary winding system mounted thereon. The iron core with its secondary winding system is disposed within a cylindrical, grounded metallic shield with rounded end-faces and the transformer is arranged inside the metal encapsulation. The metallic shield can be made up of a metal tube which is connected at its one end by means of a fastening shoulder with a fastening projection at the metal encapsulation and at its other end, by means of a further fastening shoulder to a support element which is supported at the metal encapsulation. The iron core with a secondary winding system mounted thereon is supported by the metal tube.
Inventors
- 👤 Heinz Schiemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:26
CPC Classifications
H; H01; H01F; H01F38/00; H01F38/20; H01F38/22; H01F38/28; H01F38/30; H02; H02B; H02B13/00; H02B13/02; H02B13/035; H02B13/0356
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
227 words
A single-conductor transformer for installation and use in a fluid-insulated, high-voltage installation comprising a metal enclosure, a grounded metal shielding tube member having rounded end-faces and being disposed inside the metal enclosure; first mountIng means disposed at one end of said tube member attaching the same to the metal enclosure, said first mounting means comprising a first fastening shoulder coupled to and extending from said tube member at said one end thereof, and a fastening projection coupled to and extending from the inner wall of the metal enclosure, said fastening shoulder being connected to said fastening projection; second mounting means disposed at the other end of said tube member in engagement with said inner wall of said enclosure supporting said tube member with respect to the metal enclosure, said second mounting means comprising a second fastening shoulder coupled to and extending from said tube member at said other end thereof, and a support element disposed in engagement with the inner wall of said enclosure, said second fastening shoulder being connected to said support element supporting said tube member within said enclosure; at least one transformer core unit including an iron core, and a secondary winding system mounted on said iron core; and third mounting means mounting said transformer core unit on said tube member whereby said tube member supports said transformer core unit within the metal enclosure.
Claim 2
Dependent Claim
227 words
A single-conductor transformer for installation and use in a fluid-insulated, high-voltage installation comprising a metal enclosure, a grounded metal shielding tube member having rounded end-faces and being disposed inside the metal enclosure; first mountIng means disposed at one end of said tube member attaching the same to the metal enclosure, said first mounting means comprising a first fastening shoulder coupled to and extending from said tube member at said one end thereof, and a fastening projection coupled to and extending from the inner wall of the metal enclosure, said fastening shoulder being connected to said fastening projection; second mounting means disposed at the other end of said tube member in engagement with said inner wall of said enclosure supporting said tube member with respect to the metal enclosure, said second mounting means comprising a second fastening shoulder coupled to and extending from said tube member at said other end thereof, and a support element disposed in engagement with the inner wall of said enclosure, said second fastening shoulder being connected to said support element supporting said tube member within said enclosure; at least one transformer core unit including an iron core, and a secondary winding system mounted on said iron core; and third mounting means mounting said transformer core unit on said tube member whereby said tube member supports said transformer core unit within the metal enclosure.
Claim 3
Dependent Claim
19 words
The single-conductor transformer of claim 1 wherein the metal enclosure is cylindrical and wherein said tube member is cylindrical.
Claim 4
Dependent Claim
34 words
The single-conductor transformer of claim 2, said third mounting means comprising a holding element mounted on said iron core of said transformer core unit for securing said transformer core unit to said tube member.
Claim 5
Dependent Claim
23 words
The single-conductor transformer of claim 3 wherein said holding element is made of metal, said holding element being welded to said tube member.
Claim 6
Dependent Claim
35 words
The single-conductor transformer of claim 1, said third mounting means comprising clamping means for clamping said iron core of said transformer core unit between said fastening shoulders of said first and second mounting means respectively.
Claim 7
Dependent Claim
15 words
the single-conductor transformer of claim 5, said clamping means comprising a plurality of pressure screws.
Claim 8
Dependent Claim
36 words
The single-conductor transformer of claim 2 wherein said metal tube comprises a first tubular part having a rounded end-face, and a second tubular part having a rounded end-face and being connected to said first tubular part.
Claim 9
Dependent Claim
43 words
The single-conductor transformer of claim 2, said tube member comprising a center tube part and two outer parts connected to respective ends of said center tube part, each of said outer parts having a rounded end-face facing away from said center tube part.
Claim 10
Dependent Claim
49 words
The single-conductor transformer of claim 2 wherein said shielding tube member has a longitudinal axis and has rounded end-face portions rounded so as to extend away from said longitudinal axis, said transformer core unit being mounted at the outer wall of said tube member between said rounded end-face portions.
Claim 11
Dependent Claim
147 words
The single-conductor transformer of claim 8 wherein one of said outer parts adjoins said center tube part at one end thereof and the other one of said outer parts adjoins said center tube part at the other end thereof; wherein said first fastening shoulder extends from said center tube part at said one end thereof, a first fastening tab is coupled to and extends from said one outer part, and a connecting element is attached to said fastening projection, said first fastening shoulder and said fastening tab both being tightly connected to said connecting element; and wherein said second fastening shoulder extends from said center tube part at said other end thereof, and a second fastening tab is coupled to and extends from said other one of said outer parts, said second fastening shoulder and said second fastening tab both being tightly connected to said support element.
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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) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |