US3867654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamoelectric machine stator
Assignee: General Electric Co
•
Filing: 1973-09-24
•
Granted: 1975-02-18
•
Expires: 1993-09-24
Abstract
Abstract A stator for a dynamoelectric machine having at least one end frame is provided with a stack of laminations having opposite end faces, and a plurality of openings are disposed in the stack between the end faces thereof. Means in the openings for holds the laminations generally against displacement from their stacked positions. Means is mounted in the openings for supporting engagement with the one end frame and includes means urged into engagement with the stack within the opening for preventing displacement of the supporting means generally radially of the openings and other means respectively engaged with at least a portion of the opposite end faces about the openings for preventing displacement of the supporting means generally axially of the openings. There is also disclosed a stationary member for a dynamoelectric machine having at least one end frame, and the stationary member has a peripheral portion connected between opposite end faces. A plurality of openings are provided in the stationary member between the end faces thereof and intersecting the peripheral portion. Means is mounted in the openings for supporting engagement with the one end frame and includes means respectively engaged with the opposite end faces adjacent the openings for preventing displacement of the supporting means generally axially thereof and other means engaged with the stationary member within the opening for preventing displacement of the supporting means generally radially thereof.
Inventors
- 👤 Charles W Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:36
CPC Classifications
H; H02; H02K; H02K1/00; H02K1/06; H02K1/12; H02K1/18; H02K1/185; H02K5/00; H02K5/04
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
157 words
A dynamoelectric machine stator comprising a core including a plurality of apertured magnetic laminations arranged in juxtaposed relation to form a stack having two side faces and a rotor receiving bore, and a plurality of grooves communicating between said two side faces across the outer periphery of said stack with each of said grooves having a bottom wall with a recess therein and two confronting side walls; a plurality of beams having a mounted portion thereof rigidly mounted in said plurality of grooves with each of said beam mounted portions having an elongated web portion in abutment with at least a portion of one of said groove bottom walls and two elongated flange portions projecting from said web portion in abutment with said two groove side walls; a plurality of U-shaped stack keys mounted within said recesses in juxtaposition with said beam web portions astride said stack; and two end shields secured to said plurality of beams.
Claim 2
Dependent Claim
157 words
A dynamoelectric machine stator comprising a core including a plurality of apertured magnetic laminations arranged in juxtaposed relation to form a stack having two side faces and a rotor receiving bore, and a plurality of grooves communicating between said two side faces across the outer periphery of said stack with each of said grooves having a bottom wall with a recess therein and two confronting side walls; a plurality of beams having a mounted portion thereof rigidly mounted in said plurality of grooves with each of said beam mounted portions having an elongated web portion in abutment with at least a portion of one of said groove bottom walls and two elongated flange portions projecting from said web portion in abutment with said two groove side walls; a plurality of U-shaped stack keys mounted within said recesses in juxtaposition with said beam web portions astride said stack; and two end shields secured to said plurality of beams.
Claim 3
Dependent Claim
194 words
A dynamoelectric machine stator comprising a magnetic core having a plurality of grooves in the peripheral surface thereof with each of said grooves having a bottom wall and two side walls; and a plurality of elongated rigid beams having a mounted portion thereof rigidly mounted in said plurality of grooves with each of said beam mounted portions having a web portion in abutment with one of said groove bottom walls and two spaced flange portions extending at acute angles from said web portion in abutment with said groove side walls; wherein each of said grooves has two groove lips from which rigid protruding portions of each of said rigid beams protrude from said mounted portions of said beams mounted within said grooves; wherein the width of said web portion of said rigid protruding beam portions adjacent said groove lips is greater than the width of said web portion of said mounted beam portions adjacent said groove lips whereby longitudinal movement of said elongated beams with respect to said core is inhibited; and wherein said dynamoelectric machine further comprises two bearing supporting end shields mounted to said protruding portions of said plurality of rigid beams.
Claim 4
Dependent Claim
194 words
A dynamoelectric machine stator comprising a magnetic core having a plurality of grooves in the peripheral surface thereof with each of said grooves having a bottom wall and two side walls; and a plurality of elongated rigid beams having a mounted portion thereof rigidly mounted in said plurality of grooves with each of said beam mounted portions having a web portion in abutment with one of said groove bottom walls and two spaced flange portions extending at acute angles from said web portion in abutment with said groove side walls; wherein each of said grooves has two groove lips from which rigid protruding portions of each of said rigid beams protrude from said mounted portions of said beams mounted within said grooves; wherein the width of said web portion of said rigid protruding beam portions adjacent said groove lips is greater than the width of said web portion of said mounted beam portions adjacent said groove lips whereby longitudinal movement of said elongated beams with respect to said core is inhibited; and wherein said dynamoelectric machine further comprises two bearing supporting end shields mounted to said protruding portions of said plurality of rigid beams.
Claim 5
Dependent Claim
117 words
A stator for a dynamoelectric machine having at least one end frame comprising a stack of laminations having opposite end faces, a plurality of openings in the stack between the end faces thereof, means in at least some of the openings for holding the laminations generally in their stacked positions, and means mounted in the openings for supporting engagement with the one end frame including means urged into engagement with the stack within the openings for preventing displacement of the supporting means generally radially of the openings, and other means respectively engaged with at least a portion of the opposite end faces about the openings for preventing displacement of the supporting means generally axially of the openings.
Claim 6
Dependent Claim
117 words
A stator for a dynamoelectric machine having at least one end frame comprising a stack of laminations having opposite end faces, a plurality of openings in the stack between the end faces thereof, means in at least some of the openings for holding the laminations generally in their stacked positions, and means mounted in the openings for supporting engagement with the one end frame including means urged into engagement with the stack within the openings for preventing displacement of the supporting means generally radially of the openings, and other means respectively engaged with at least a portion of the opposite end faces about the openings for preventing displacement of the supporting means generally axially of the openings.
Claim 7
Dependent Claim
42 words
A stator as set forth in claim 3, wherein the supporting means further include means spaced from at least one of the opposite end faces in a direction generally axially with respect to the stack for connection with the one end frame.
Claim 8
Dependent Claim
36 words
A stator as set forth in claim 3, wherein the supporting means is generally constituted by a plurality of elongate beams, and the beams include the first named preventing means and the other preventing means, respectively.
Claim 9
Dependent Claim
65 words
A stator as set forth in claim 5, wherein the beams include a base wall interposed between generally opposite side walls, and further comprising means in the stack between the end faces thereof and connecting with at least some of the openings adjacent the base wall of the beams for receiving the holding means therein, and tHe holding means being disposed in the receiving means.
Claim 10
Dependent Claim
70 words
A stator as set forth in claim 5, wherein the beams include a base wall interposed between generally opposite side walls, and further comprising means in the stack between the end faces thereof and connecting with at least some of the openings adjacent at least one of the opposite side walls of the beams therein for receiving the holding means, and the holding means being disposed in the receiving means.
Claim 11
Dependent Claim
39 words
A stator as set forth in claim 5, wherein the other preventing means comprise a pair of generally opposite means on the beams extending into overlaying relation with the opposite end faces for abutment therewith about the openings, respectively.
Claim 12
Dependent Claim
44 words
A stator as set forth in claim 8, wherein the beams include a base portion interposed between generally opposite side portions, at least a portion of the abutment means being disposed generally adjacent the juncture of the base portion with the side portions, respectively.
Claim 13
Dependent Claim
40 words
A stator as set forth in claim 5, wherein the first named preventing means comprise a pair of generally opposite means on the beams for abutment with at least some of confronting portions of the stack within the openings, respectively.
Claim 14
Dependent Claim
57 words
A stator as set forth in claim 10, wherein the beams include a base portion interposed between generally opposite side portions, and the side portions generally constituting the abutment means are urged toward engagement with the confronting portions of the stack within the openings thereby to prevent the displacement of the beams generally radially of the openings.
Claim 15
Dependent Claim
82 words
A stator as set forth in claim 3, wherein the openings respectively comprise a groove having a base wall interposed between opposite side walls which intersect with the periphery of the stack, and wherein the supporting means comprise a plurality of elongate beams mounted in the grooves, the beams including a pair of means for abutment with the opposite end faces generally adjacent the junction of the grooves therewith, and the other displacement preventing means being generally constituted by the abutment means.
Claim 16
Dependent Claim
48 words
A stator as set forth in claim 12, wherein the beams further include a pair of opposite side portions urged toward abutting engagement with the side walls of the grooves, and the first named displacement preventing means being generally constituted by the opposite side portions of the beams.
Claim 17
Dependent Claim
95 words
A stationary member for a dynamoelectric machine having at least one end frame comprising a peripheral portion connected between opposite end faces; a plurality of openings in the stationary member between the end faces thereof and intersecting the peripheral portion, and means mounted in the openings for supporting the one end frame including means respectively engaged with the opposite end faces adjacent the openings for preventing displacement of the supporting means generally axially thereof, and other means engaged with the stationary member within the openings for preventing displacement of the supporting means generally radially thereof.
Claim 18
Dependent Claim
95 words
A stationary member for a dynamoelectric machine having at least one end frame comprising a peripheral portion connected between opposite end faces; a plurality of openings in the stationary member between the end faces thereof and intersecting the peripheral portion, and means mounted in the openings for supporting the one end frame including means respectively engaged with the opposite end faces adjacent the openings for preventing displacement of the supporting means generally axially thereof, and other means engaged with the stationary member within the openings for preventing displacement of the supporting means generally radially thereof.
Claim 19
Dependent Claim
42 words
A stationary member as set forth in claim 14, wherein the other displacement preventing means comprise a pair of generally opposite means on the supporting means for abutment with at least some confronting portions of the stationary member within the openings, respectively.
Claim 20
Dependent Claim
38 words
A stationary member as set forth in claim 15, wherein the supporting means comprise a plurality of elongate beams having a base portion interposed between generally opposite side portions, and the side portions generally constituting the abutment means.
Claim 21
Dependent Claim
52 words
A stationary member as set forth in claim 15, wherein the openings respectively comprise groove means having a base wall interposed between opposite side walls which intersect with the peripheral portion of the stationary member, said supporting means being engaged with at least portions of the base wall and the side walls.
Claim 22
Dependent Claim
66 words
A stationaRy member as set forth in claim 17, wherein the supporting means comprises a plurality of elongate beams having a base portion interposed between a pair of opposite side portions, a pair of means on the beams for abutment with the opposite end faces generally adjacent the juncture of the groove means therewith, and the abutment means generally constituting the first named displacement preventing means.
Claim 23
Dependent Claim
33 words
A stationary member as set forth in claim 18, wherein at least a portion of the abutment means being disposed generally adjacent the juncture of the base portion with the side portions, respectively.
Claim 24
Dependent Claim
42 words
A stationary member as set forth in claim 18, wherein the side portions of the beams are urged toward engagement with the side walls of the groove means thereby to prevent the displacement of the beams generally radially of the groove means.
Claim 25
Dependent Claim
22 words
A stationary member as set forth in claim 14, wherein the first named displacement preventing means comprises a pair of abutment means.
Claim 26
Dependent Claim
35 words
A stationary member as set forth in claim 14, wherein the supporting means comprise a plurality of elongate beams, and a pair of abutment means on the beams constituting the first named displacement preventing means.
Claim 27
Dependent Claim
46 words
A stationary member as set forth in claim 22, wherein the beams comprise a base portion interposed between generally opposite side portions, and at least a portion of said abutment means being disposed generally adjacent the juncture of the base portion with the side portions, respectively.
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) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |