Patent US3876893A successfully refreshed from Google Patents.
US3876893A
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Stator winding support structure for dynamo-electric machines provided with a superconducting rotor winding
Assignee: BBC Brown Boveri AG Switzerland
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Filing: 1973-11-29
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Granted: 1975-04-08
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Expires: 1993-11-29
Abstract
Abstract A stator winding support structure for a dynamo-electric machine particularly adapted for a machine of the type provided with a superconducting rotor winding includes an annular support on which conductor bars forming the stator winding are mounted. The annular support is located within the stator core and spaced radially therefrom to establish a circumferentially extending gap therebetween and this gap is filled out by a circumferentially extending array of wedge means incorporating elastically compressible inserts so as to establish a radially resilient mounting for the annular winding support that provides for a predetermined expansion limit.
Inventors
- 👤 John S H Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:57
CPC Classifications
H; H02; H02K; H02K55/00; H02K55/02; H02K55/04; H02K3/00; H02K3/46; H02K3/47; Y; Y02; Y02E; Y02E40/00; Y02E40/60
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
96 words
A stator winding support structure for a dynamo-electric machine which comprises an annular support on which conductor bars forming the stator winding are mounted, said annular support being located within a laminated stator core component of the machine and spaced radially therefrom to establish a circumferentially extending gap therebetween, and a circumferential array of wedge means incorporating resilient inserts constituted by body members of an elastically compressible material located in said gap and extending completely around and filling the same for establishing a radially resilient mounting for said annular stator winding support within said stator core.
Claim 2
Dependent Claim
96 words
A stator winding support structure for a dynamo-electric machine which comprises an annular support on which conductor bars forming the stator winding are mounted, said annular support being located within a laminated stator core component of the machine and spaced radially therefrom to establish a circumferentially extending gap therebetween, and a circumferential array of wedge means incorporating resilient inserts constituted by body members of an elastically compressible material located in said gap and extending completely around and filling the same for establishing a radially resilient mounting for said annular stator winding support within said stator core.
Claim 3
Dependent Claim
30 words
A stator winding support structure as defined in claim 1 for a dynamo-electric machine wherein the bases of adjacent pairs of wedges are arranged so as to face each other.
Claim 4
Dependent Claim
29 words
A stator winding support structure as defined in claim 2 for a dynamo-electric machine and which further includes a fluid-filled flexible tube interposed between the bases of adjacent wedges.
Claim 5
Dependent Claim
34 words
A stator winding support structure as defined in claim 1 for a dynamo-electric machine wherein said elastically compressible inserts are located in recesses separated by projections therebetween provided along a surface of each wedge.
Claim 6
Dependent Claim
36 words
A stator winding support structure as defined in claim 4 for a dynamo-electric machine wherein the elastically compressible insert-containing recesses are provided along the surface of the wedge facing the annular support for the stator winding.
Claim 7
Dependent Claim
23 words
A stator winding support structure as defined in claim 5 wherein said elastically compressible inserts and projections are covered by a protective layer.
Claim 8
Dependent Claim
55 words
A stator winding support structure as defined in claim 6 wherein an initial air gap exists between the end faces of said projections and said protective layer, said air gap being attributable to the fact that the ends of said elastically compressible inserts facing the protective cover layer extend beyond the ends of said projections.
References Cited (Backward Citations)
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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) | 1978-04-07 | 1978-10-07 | 1979-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-07 | 1982-10-07 | 1983-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-07 | 1986-10-07 | 1987-04-08 | $7700.00 | Window Closed / Lapsed |