US3647932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transposed conductor for dynamoelectric machines
Assignee: Westinghouse Electric Corp
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Filing: 1970-12-11
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Granted: 1972-03-07
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Expires: 1990-12-11
Abstract
Abstract A transposed stranded conductor for dynamoelectric machines having four stacks of strands transposed in the slot portion of the conductor in such a manner that each stack moves to different transverse positions in successive longitudinal sections of the bar such that the stacks are reversed in transverse position at opposite ends of the bar. Preferably, the strands are also transposed in a manner to cause inversion of the relative strand positions at opposite ends of the slot so that the conductor is fully transposed with inversion of strand position both transversely of the slot and depthwise of the slot.
Inventors
- 👤 Paul R Heller
- 👤 William C Brenner
- 👤 Harold M Philossky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:18
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/04; H02K3/12; H02K3/14
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
88 words
A conductor bar for a dynamoelectric machine having a straight central slot portion and two end portions, said conductor bar comprising a plurality of strands disposed in an even number of side-by-side stacks greater than two, said strands being transposed in the slot portion by successive crossovers from one stack position to another, each stack of strands moving to different positions transversely of the bar in different successive longitudinal sections of the bar such that the stacks are reversed in transverse positions at opposite ends of the bar.
Claim 2
Dependent Claim
88 words
A conductor bar for a dynamoelectric machine having a straight central slot portion and two end portions, said conductor bar comprising a plurality of strands disposed in an even number of side-by-side stacks greater than two, said strands being transposed in the slot portion by successive crossovers from one stack position to another, each stack of strands moving to different positions transversely of the bar in different successive longitudinal sections of the bar such that the stacks are reversed in transverse positions at opposite ends of the bar.
Claim 3
Dependent Claim
26 words
A conductor bar as defined in claim 1 in which the strands of each stack are inverted in relative Positions at opposite ends of the bar.
Claim 4
Dependent Claim
27 words
A conductor bar as defined in claim 1 in which the strands are transposed so as to occupy all positions in the bar for substantially equal distances.
Claim 5
Dependent Claim
88 words
A conductor bar for a dynamoelectric machine having a straight central slot portion and two end portions, said conductor bar comprising a plurality of strands disposed in four side-by-side stacks, said strands being transposed in the slot portion by successive crossovers from one stack position to another, each stack of strands moving as a stack to different positions transversely of the bar in different successive longitudinal sections of the bar in such a manner that the stacks are reversed in transverse position at opposite ends of the bar.
Claim 6
Dependent Claim
88 words
A conductor bar for a dynamoelectric machine having a straight central slot portion and two end portions, said conductor bar comprising a plurality of strands disposed in four side-by-side stacks, said strands being transposed in the slot portion by successive crossovers from one stack position to another, each stack of strands moving as a stack to different positions transversely of the bar in different successive longitudinal sections of the bar in such a manner that the stacks are reversed in transverse position at opposite ends of the bar.
Claim 7
Dependent Claim
26 words
A conductor bar as defined in claim 4 in which the strands of each stack are inverted in relative position at opposite ends of the bar.
Claim 8
Dependent Claim
28 words
A conductor bar as defined in claim 5 in which the strands are transposed so that each strand occupies all positions in the bar for substantially equal distances.
Claim 9
Dependent Claim
62 words
A conductor bar as defined in claim 4 in which each of said stacks of strands moves from one transverse position to another in a first longitudinal section of the bar, each stack moves to another transverse position in a second longitudinal section of the bar, and each stack moves to a final transverse position in a third section of the bar.
Claim 10
Dependent Claim
73 words
A conductor bar as defined in claim 7 in which one of said sections is twice as long as each of the other two sections and the spacing between crossovers in said longer section is twice the spacing in the other two sections, whereby the strands of each stack are inverted in relative position at opposite ends of the bar and each strand occupies all positions in the bar for substantially equal distances.
Claim 11
Dependent Claim
78 words
A conductor bar as defined in claim 4 in which each stack of strands in an interior position changes places with a stack in an outside position in a first longitudinal section of the bar, the two outside stacks change places and the two inside stacks change places in a second section of the bar, and the stacks in interior positions each change places with a stack in an outside position in a third section of the bar.
Claim 12
Dependent Claim
45 words
A conductor bar as defined in claim 9 in which said second longitudinal section is twice as long as each of the first and third sections and the spacing between crossovers in the second section is twice the spacing in the first and third sections.
Claim 13
Dependent Claim
107 words
A conductor bar as defined in claim 4 in which one stack of strands in an outside position moves to the other outside position and each of the other three stacks moves to an adjacent position in a first longitudinal section of the bar, each stack in an outside position changes places with the adjacent stack in a second section of the bar, and an outside stack moves to the other outside position while each of the other stacks moves to an adjacent position in a third section of the bar, the direction of transverse movement of the stacks being opposite in the first and third sections.
Claim 14
Dependent Claim
73 words
A conductor bar as defined in claim 11 in which one of said sections is twice as long as each of the other two sections and the spacing between crossovers in said longer section is twice the spacing in the other two sections, whereby the strands of each stack are inverted in relative position at opposite ends of the bar and each strand occupies all positions in the bar for substantially equal distances.
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) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |