US3626219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamo electric machine and method of making same
Assignee: Individual
•
Filing: 1970-05-21
•
Granted: 1971-12-07
•
Expires: 1990-05-21
Abstract
Abstract Generators and motors whose housings are formed economically from readily available structural iron. The housings for two-pole units are made from segments of structural channel iron or cold rolled flats. The housings for four-pole units are made from segments of structural angle iron or cold rolled flats. The pole assemblies are precisely positioned by means of an appropriate jig. While the pole assemblies are so positioned, the structural iron members are wedged or otherwise disposed against the pole assemblies and secured, as by welding, to maintain the precise spatial relationships. The units are completed by end plates in which an armature structure is journaled. The housings are formed with a minimum of labor and a minimum of precision metal working operations.
Inventors
- 👤 Leon R Lease
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:57
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K1/00; H02K1/06; H02K1/12; H02K1/18; H02K1/185
Claims Analysis
Total Claims: 41
Claim 1
Independent Claim
141 words
A dynamoelectric machine comprising: A. a plurality of precisely positioned pole assemblies; B. an open-ended housing frame, said frame being comprised of: 1. a plurality of imprecisely formed structural iron members disposed to define a space to receive said pole assemblies and an armature; 2. said structural iron members on opposite sides of the frame being generally parallel to one another and extending longitudinally of the axis of the machine; 3. one pole assembly being rigidly secured to each of at least two of said structural iron members; 4. said imprecisely formed structural iron members being positioned in wedged relation rigidly secured together with said pole assemblies in a generally rectangular frame maintaining the precise positioning of said pole assemblies; and C. end plates over the open ends of said housing frame journaling an armature for rotation within said pole assemblies.
Claim 2
Dependent Claim
141 words
A dynamoelectric machine comprising: A. a plurality of precisely positioned pole assemblies; B. an open-ended housing frame, said frame being comprised of: 1. a plurality of imprecisely formed structural iron members disposed to define a space to receive said pole assemblies and an armature; 2. said structural iron members on opposite sides of the frame being generally parallel to one another and extending longitudinally of the axis of the machine; 3. one pole assembly being rigidly secured to each of at least two of said structural iron members; 4. said imprecisely formed structural iron members being positioned in wedged relation rigidly secured together with said pole assemblies in a generally rectangular frame maintaining the precise positioning of said pole assemblies; and C. end plates over the open ends of said housing frame journaling an armature for rotation within said pole assemblies.
Claim 3
Dependent Claim
12 words
said structural iron members extending longitudinally of the axis of the machine;
Claim 4
Dependent Claim
12 words
said structural iron members extending longitudinally of the axis of the machine;
Claim 5
Dependent Claim
25 words
said structural iron members on opposite sides of the frame being generally parallel to one another and extending longitudinally of the axis of the machine;
Claim 6
Dependent Claim
25 words
said structural iron members on opposite sides of the frame being generally parallel to one another and extending longitudinally of the axis of the machine;
Claim 7
Dependent Claim
12 words
said structural iron members extending longitudinally of the axis of the machine;
Claim 8
Dependent Claim
12 words
said structural iron members extending longitudinally of the axis of the machine;
Claim 9
Dependent Claim
27 words
A dynamoelectric machine according to claim 1 further characterized in that said plurality of structural iron members corresponds in number to the number of said pole assemblies.
Claim 10
Dependent Claim
96 words
A dynamoelectric machine according to claim 2 further characterized in that: A. said pole assemblies are two in number; B. said housing frame is comprised of a pair of structural channel iron members disposed in face-to-face relation and each having a flat base and a pair of generally parallel side members extending in the same direction from the opposite sides of the base; C. said channel iron members being secured to said pole assemblies adjacent the free edges of said side members, each of said channel iron members being secured to each of said pole assemblies.
Claim 11
Dependent Claim
19 words
said pole assemblies being rigidly secured to the inside surfaces of one of said pairs of structural iron members;
Claim 12
Dependent Claim
19 words
said pole assemblies being rigidly secured to the inside surfaces of one of said pairs of structural iron members;
Claim 13
Dependent Claim
17 words
one pole assembly being rigidly secured to each of at least two of said structural iron members;
Claim 14
Dependent Claim
17 words
one pole assembly being rigidly secured to each of at least two of said structural iron members;
Claim 15
Dependent Claim
19 words
each of said pole assemblies being rigidly secured to the inside surface of one of said structural iron members;
Claim 16
Dependent Claim
19 words
each of said pole assemblies being rigidly secured to the inside surface of one of said structural iron members;
Claim 17
Dependent Claim
51 words
each of said structural iron members being rigidly secured to each of two adjacent structural iron members in a generally rectangular frame maintaining the precise positioning of said pole assemblies; and C. end plates over the open ends of said housing frame journaling an armature for rotation within said pole assemblies.
Claim 18
Dependent Claim
51 words
each of said structural iron members being rigidly secured to each of two adjacent structural iron members in a generally rectangular frame maintaining the precise positioning of said pole assemblies; and C. end plates over the open ends of said housing frame journaling an armature for rotation within said pole assemblies.
Claim 19
Dependent Claim
52 words
said imprecisely formed structural iron members being positioned in wedged relation rigidly secured together with said pole assemblies in a generally rectangular frame maintaining the precise positioning of said pole assemblies; and C. end plates over the open ends of said housing frame journaling an armature for rotation within said pole assemblies.
Claim 20
Dependent Claim
52 words
said imprecisely formed structural iron members being positioned in wedged relation rigidly secured together with said pole assemblies in a generally rectangular frame maintaining the precise positioning of said pole assemblies; and C. end plates over the open ends of said housing frame journaling an armature for rotation within said pole assemblies.
Claim 21
Dependent Claim
51 words
each of said structural iron members being rigidly secured to each of two adjacent structural iron members in a generally rectangular frame maintaining the precise positioning of said pole assemblies; and C. end plates over the open ends of said housing frame journaling an armature for rotation within said pole assemblies.
Claim 22
Dependent Claim
51 words
each of said structural iron members being rigidly secured to each of two adjacent structural iron members in a generally rectangular frame maintaining the precise positioning of said pole assemblies; and C. end plates over the open ends of said housing frame journaling an armature for rotation within said pole assemblies.
Claim 23
Dependent Claim
139 words
A dynamoelectric machine according to claim 3 further characterized in that: A. The inside surfaces of the side members of said channel iron members tapering from narrower at their free edges to thicker at their point of junction with the base; B. said pole assemblies each include a longitudinally extending plate rigidly secured thereto, said plates being of substantially the same length as said channel iron members; C. the outer surface of each of said plates tapers from thicker along its center line to narrower along the parallel edges at an angle complementary to the taper of the side members of the channel iron members; and D. said channel iron members and said plates are assembled with the tapered inner faces of the side members of the channel members in engagement with the tapered outer faces of said plates.
Claim 24
Dependent Claim
64 words
A dynamoelectric machine according to claim 4 further characterized in that: A. the outer surface of said longitudinally extending plate is provided with a central longitudinally extending rib; and B. said structural channel iron members and said plates are rigidly secured together by a longitudinal weld in the channel between the free edges of the side members of the channel members and said rib.
Claim 25
Dependent Claim
62 words
A dynamoelectric machine according to claim 4 further characterized in that: A. said longitudinally extending plates are about one-sixteenth to one-eighth inch longer than said channel members; B. the ends of said plates extend about one thirty-second to one-sixteenth inch beyond the ends of said channel members; and C. said end plates are secured to the ends of said longitudinally extending plates.
Claim 26
Dependent Claim
74 words
A dynamoelectric machine according to claim 2 further characterized in that: A. said pole assemblies are 4 in number; B. said housing frame is comprised of 4 structural angle-iron members, the sides of which are approximately equal in width and disposed at right angles; C. said angle-iron members being secured to said pole assemblies adjacent the free edges of said sides, each of said angle-iron members being secured to the two adjacent pole assemblies.
Claim 27
Dependent Claim
74 words
A dynamoelectric machine according to claim 2 further characterized in that: A. said pole assemblies are four in number; B. said housing frame is comprised of four substantially identical structural angle-iron members, the sides of which are unequal in width and disposed at right angles; C. said angle-iron members being secured to said pole assemblies adjacent the free edges of said sides, each of said angle-iron members being secured to two adjacent pole assemblies.
Claim 28
Independent Claim
217 words
The method of making a dynamoelectric machine comprising a plurality of precisely positioned pole assemblies; an open ended housing frame, said frame being comprised of a plurality of structural iron members disposed to define a space to receive said pole assemblies and an armature, said structural iron members on opposite sides of the frame being generally parallel to one another and extending longitudinally of the axis of the machine, one pole assembly being rigidly secured to each of at least two of said structural iron members, said structural iron members being rigidly secured together in a generally rectangular frame maintaining the precise positioning of said pole assemblies, and end plates over the open ends of said housing frame journaling an armature for rotation within said pole assemblies, said method comprising the steps of: A. precisely and symmetrically positioning a plurality of pole assemblies on a jig; b. forming a surrounding housing frame by disposing a plurality of structural iron members around the outer surfaces of said pole assemblies; C. rigidly securing one of said pole assemblies to each of at least two of said structural iron members; D. rigidly securing together said structural iron members while maintaining said pole assemblies precisely positioned; and E. attaching end plates over the open ends of the thusly formed housing frame.
Claim 29
Independent Claim
217 words
The method of making a dynamoelectric machine comprising a plurality of precisely positioned pole assemblies; an open ended housing frame, said frame being comprised of a plurality of structural iron members disposed to define a space to receive said pole assemblies and an armature, said structural iron members on opposite sides of the frame being generally parallel to one another and extending longitudinally of the axis of the machine, one pole assembly being rigidly secured to each of at least two of said structural iron members, said structural iron members being rigidly secured together in a generally rectangular frame maintaining the precise positioning of said pole assemblies, and end plates over the open ends of said housing frame journaling an armature for rotation within said pole assemblies, said method comprising the steps of: A. precisely and symmetrically positioning a plurality of pole assemblies on a jig; b. forming a surrounding housing frame by disposing a plurality of structural iron members around the outer surfaces of said pole assemblies; C. rigidly securing one of said pole assemblies to each of at least two of said structural iron members; D. rigidly securing together said structural iron members while maintaining said pole assemblies precisely positioned; and E. attaching end plates over the open ends of the thusly formed housing frame.
Claim 30
Dependent Claim
26 words
A method according to claim 9 further characterized in that said plurality of structural iron members corresponds in number to the number of said pole assemblies.
Claim 31
Dependent Claim
85 words
The method according to claim 10 further characterized in that: A. said pole assemblies are two in number; B. said structural iron members are channel iron members each having a flat base and a pair of substantially parallel side members extending in the same direction from the opposite sides of the base; C. said channel iron members are disposed on opposite sides of said pole assemblies in face-to-face relation and wedged into engagement with the pole assemblies; and D. said parts are secured by welding.
Claim 32
Dependent Claim
137 words
A method according to claim 11 further characterized in that: A. the inside surfaces of the side members of said channel members are tapered from narrower at their free edges to thicker at their point of junction with the base; B. said pole assemblies each include a longitudinally extending plate rigidly secured thereto, said plates being substantially the same length as said channel iron members; C. the outer surface of each of said plates tapers from thicker along its center line to narrower along the parallel edges at an angle complementary to the taper of the side members of the channel iron members; and D. said channel iron members and said plates are weDged together by engaging the tapered inner faces of the side members of the channel members with the tapered outer faces of said plates.
Claim 33
Dependent Claim
82 words
A method according to claim 9 further characterized in that: A. said pole assemblies are two in number; B. said housing frame is comprised of a pair of flat parallel structural iron members spaced apart by a second pair of flat spaced-apart parallel structural iron members; C. said pole assemblies are rigidly secured to the inside surfaces of one of said pairs of structural members; and D. each of said structural members is rigidly secured to each of two adjacent structural members.
Claim 34
Dependent Claim
82 words
A method according to claim 10 further characterized in that: A. said pole assemblies are four in number; B. said housing frame is comprised of a pair of flat parallel structural iron members spaced apart by a second pair of flat spaced-apart parallel structural iron members; C. each of said pole members is rigidly secured to the inside surface of one of said structural members; and D. each of said structural members is rigidly secured to each of two adjacent structural members.
Claim 35
Dependent Claim
79 words
A method according to claim 10 further characterized in that: A. said pole assemblies are four in number; B. said structural iron members are angle irons, the sides of which are approximately equal in width and disposed at right angles; C. said angle irons are disposed spaced between adjacent pole assemblies and wedged into engagement therewith, the inside faces of said angle irons engaging the outer surfaces of said pole assemblies; and D. said parts are secured by welding.
Claim 36
Dependent Claim
79 words
A method according to claim 10 further characterized in that: A. said pole assemblies are four in number; B. said structural iron members are substantially identical angle irons, the sides of which are unequal in width and disposed at right angles; C. said angle irons are disposed spaced between adjacent pole assemblies and in engagement therewith, the inside faces of said angle irons engaging the outer surfaces of said pole assemblies; and D. said parts are secured by welding.
Claim 37
Dependent Claim
114 words
A method according to claim 10 further characterized in that: A. said pole assemblies are four in number; B. said structural iron members are substantially identical angle irons, the sides of which are unequal in width and disposed at right angles; C. said angle irons are disposed spaced between adjacent pole assemblies and in engagement therewith, the inside faces of the wider of the sides of said angle irons engaging the outer surfaces of said pole assemblies, the inside faces of the narrower of the sides of said angle irons engaging the outer faces of the wider of the sides of the next adjacent angle iron; and D. said parts are secured by welding.
Claim 38
Dependent Claim
22 words
A dynamoelectric machine comprising: A. a pair of precisely positioned pole assemblies; B. an open-ended housing frame, said frame being comprised of:
Claim 39
Dependent Claim
22 words
A dynamoelectric machine comprising: A. a pair of precisely positioned pole assemblies; B. an open-ended housing frame, said frame being comprised of:
Claim 40
Dependent Claim
20 words
A dynamoelectric machine comprising: A. four precisely positioned pole assemblies; B. an open-ended housing frame, said frame being comprised of:
Claim 41
Dependent Claim
20 words
A dynamoelectric machine comprising: A. four precisely positioned pole assemblies; B. an open-ended housing frame, said frame being comprised of:
References Cited (Backward Citations)
US2982873A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |