Patent US1907507A successfully refreshed from Google Patents.
US3790835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disc armature
Assignee: Panasonic Holdings Corp
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Filing: 1972-03-07
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Granted: 1974-02-05
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Expires: 1992-03-07
Abstract
Abstract A disc armature having a plurality of armature coils assembled in the form of a disc, each coil comprising at least one turn of conductor covered with insulating sheath, the thickness of the effective portion of the armature winding or the coil side portion which lies within the field air-gap being equal to that of one individual armature coil and the coil end portions of the armature winding being thickner than the coil side portion since the coil ends of one individual armature coil overlap those of another, and the thicker coil end portions being accommodated in a space defined by the field magnet and the frame so that a very high space factor can be attained.
Inventors
- 👤 N Takeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:41
CPC Classifications
H; H02; H02K; H02K3/00; H02K13/00; H02K13/006; H02K23/00; H02K23/54
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
190 words
A disc armature comprising an armature winding, a commutator and a doughnut-shaped insulating plate, said armature winding consisting of a plurality of armature coils of the same geometry, each of which comprises at least one turn of conductor covered with insulating sheath, assembled in the form of a disc in such a manner that the coil sides of said armature coils may be uniformly distributed around the rotational shaft of said armature so as not to overlap one another and that the coil end portions of said armature winding consisting of plural coil ends of said armature coils overlapping one another may be thicker than the coil side portion of said armature winding, and said insulating plate having on both sides thereof a plurality of conductors extending from the inner perimeter to the outer one and comprising inner and outer terminals at both its ends, wherein the ends of said armature coils are connected with said outer terminals of said condcutors and the segments of said commutator are connected with said inner terminals of said conductor so that said conductors bridge said ends of said conductors and said commutator segments.
Claim 2
Dependent Claim
190 words
A disc armature comprising an armature winding, a commutator and a doughnut-shaped insulating plate, said armature winding consisting of a plurality of armature coils of the same geometry, each of which comprises at least one turn of conductor covered with insulating sheath, assembled in the form of a disc in such a manner that the coil sides of said armature coils may be uniformly distributed around the rotational shaft of said armature so as not to overlap one another and that the coil end portions of said armature winding consisting of plural coil ends of said armature coils overlapping one another may be thicker than the coil side portion of said armature winding, and said insulating plate having on both sides thereof a plurality of conductors extending from the inner perimeter to the outer one and comprising inner and outer terminals at both its ends, wherein the ends of said armature coils are connected with said outer terminals of said condcutors and the segments of said commutator are connected with said inner terminals of said conductor so that said conductors bridge said ends of said conductors and said commutator segments.
Claim 3
Dependent Claim
208 words
A disc armature comprising a lap-wound armature winding, a commutator and a doughnut-shaped insulating plate, said armature winding consisting of a plurality of armature coils of the same geometry, each of which comprises at least one turn of conductor covered with an insulating sheath, assembled in the form of a disc in such a manner that the coil sides of said armature coils may be uniformly distributed around the rotational shaft of said armature so as not to overlap one another and that the coil end portions of said armature winding consisting of plural coil ends of said armature coils overlapping one another may be thicker than the coil side portion of said armature winding, and said insulating plate having on both sides thereof a plurality of conductors extending from the inner perimeter to the outer one and comprising inner and outer terminals at both its ends, wherein the ends of said armature coils are connected with said outer terminals of said conductors and the segments of said commutator are connected with said inner terminals of said conductor and wherein any pair of conductors whose inner terminals are coupled to the commutator segments apart from each other by 360 electrical degrees are connected together through their outer terminals.
Claim 4
Dependent Claim
208 words
A disc armature comprising a lap-wound armature winding, a commutator and a doughnut-shaped insulating plate, said armature winding consisting of a plurality of armature coils of the same geometry, each of which comprises at least one turn of conductor covered with an insulating sheath, assembled in the form of a disc in such a manner that the coil sides of said armature coils may be uniformly distributed around the rotational shaft of said armature so as not to overlap one another and that the coil end portions of said armature winding consisting of plural coil ends of said armature coils overlapping one another may be thicker than the coil side portion of said armature winding, and said insulating plate having on both sides thereof a plurality of conductors extending from the inner perimeter to the outer one and comprising inner and outer terminals at both its ends, wherein the ends of said armature coils are connected with said outer terminals of said conductors and the segments of said commutator are connected with said inner terminals of said conductor and wherein any pair of conductors whose inner terminals are coupled to the commutator segments apart from each other by 360 electrical degrees are connected together through their outer terminals.
Claim 5
Dependent Claim
259 words
A disc armature comprising a lap-wound armature winding, a commutator and a doughnut-shaped insulating plate, said armature winding consisting of a plurality of armature coils of the same geometry, each of which comprises at least one turn of conductor covered with insulating sheath, assembled in the form of a disc in such a manner that the coil sides of said armature coils may be uniformly distributed around the rotational shaft of said armature so as not to overlap one another and that the coil end portions of said armature winding consisting of plural coil ends of said armature coils overlapping one another may be thicker than the coil side portion of said armature winding, and said insulating plate having on both sides thereof a plurality Of conductors extending from the inner perimeter to the outer one and comprising inner and outer terminals at both its ends, wherein the ends of said armature coils are connected with said outer terminals of said conductors and the segments of said commutator are connected with said inner terminals of said conductor, whereby any pair of conductor whose inner terminals are coupled to the commulator segments apart from each other by 360 electrical degrees are connected together through their outer terminals and wherein said conductors on one side of said insulating plate are used as commutator segments and any pair of said conductors of said one side of said insulating plate apart from each other by 360 electrical degrees are short-circuited by means of said conductors on the other side of said insulating plate.
Claim 6
Dependent Claim
259 words
A disc armature comprising a lap-wound armature winding, a commutator and a doughnut-shaped insulating plate, said armature winding consisting of a plurality of armature coils of the same geometry, each of which comprises at least one turn of conductor covered with insulating sheath, assembled in the form of a disc in such a manner that the coil sides of said armature coils may be uniformly distributed around the rotational shaft of said armature so as not to overlap one another and that the coil end portions of said armature winding consisting of plural coil ends of said armature coils overlapping one another may be thicker than the coil side portion of said armature winding, and said insulating plate having on both sides thereof a plurality Of conductors extending from the inner perimeter to the outer one and comprising inner and outer terminals at both its ends, wherein the ends of said armature coils are connected with said outer terminals of said conductors and the segments of said commutator are connected with said inner terminals of said conductor, whereby any pair of conductor whose inner terminals are coupled to the commulator segments apart from each other by 360 electrical degrees are connected together through their outer terminals and wherein said conductors on one side of said insulating plate are used as commutator segments and any pair of said conductors of said one side of said insulating plate apart from each other by 360 electrical degrees are short-circuited by means of said conductors on the other side of said insulating plate.
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) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |