US3871070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making winding of smooth-core armature
Assignee: KZ VASILY MIKHAILOVICH
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Filing: 1973-09-14
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Granted: 1975-03-18
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Expires: 1993-09-14
Abstract
Abstract A method of making a smooth-core armature winding, and preferably for fractional horse-power commutator machines. The method is characterized in that a wire is wound on a former after which the turns of a winding blank are maintained in spaced relationship on the former in four parts by attaching two equally wide strips to the blank, and in which the blank removed from the former is then arranged on a cylindrical frame with the top layer of the conductors shifted relative to the bottom layer by one winding pitch thus shaping end connectors of the winding while fixing the latter on said frame.
Inventors
- 👤 Vasily Mikhailovich Kazansky
- 👤 Alexei Grigorievich Epifantsev
- 👤 Vladimir Lavrentie Roschektaev
- 👤 Jury Adamovich Kramer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:51
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/04; H01; H01F; H01F41/00; H01F41/02; H01F41/04; H01F41/10; H02K15/00; H02K15/06; H02K15/062; H02K15/065; H02K15/066; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/49012; Y10T29/4902; Y10T29/49071
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
163 words
A method of making a winding for a smooth-core armature for fractional horse-power commutator machines; comprising winding a continuous length of a conductor on a former to form a winding blank having active and inactive conductor portions while simultaneously tapping said winding blank; partitioning said winding blank length on said former into four parts of respectively two active and two inactive conductor portions by attaching two equally wide strips of an adhesive insulating material to said blank so as to longitudinally extend along said winding blank on said former; removing said winding blank from the former; and arranging said winding blank on a cylindrical frame by winding one of said strips about the cylindrical surface thereof while shifting the conductor portion attached to the other strip relative to the conductor portion attached to the first mentioned strip by one winding pitch to thereby form an armature winding and to also shape the ends of the winding for fixing the latter on said frame.
Claim 2
Independent Claim
163 words
A method of making a winding for a smooth-core armature for fractional horse-power commutator machines; comprising winding a continuous length of a conductor on a former to form a winding blank having active and inactive conductor portions while simultaneously tapping said winding blank; partitioning said winding blank length on said former into four parts of respectively two active and two inactive conductor portions by attaching two equally wide strips of an adhesive insulating material to said blank so as to longitudinally extend along said winding blank on said former; removing said winding blank from the former; and arranging said winding blank on a cylindrical frame by winding one of said strips about the cylindrical surface thereof while shifting the conductor portion attached to the other strip relative to the conductor portion attached to the first mentioned strip by one winding pitch to thereby form an armature winding and to also shape the ends of the winding for fixing the latter on said frame.
Claim 3
Dependent Claim
80 words
A method as claimed in claim 1, including spacing the edges of said strips evenly along the contour of a turn while maintaining their spacing equal to the length of the chord of an armature winding pitch and, concurrently with arranging said winding blank on said cylindrical frame, drawing said inactive conductor portions towards a center axis of said armature core, so as to form helical coil ends on end faces of said core and fastening said coil ends thereon.
Claim 4
Dependent Claim
116 words
A method as claimed in claim 2, the distances between the edges of said strips along the contour of a turn on the side of the winding taps being equal to the length of the chord corresponding to a pitch of said armature winding, while on the opposite side these distances are equal to the length of an arc confined by said chord and, concurrently with arranging the winding blank on said cylindrical frame, drawing said inactive conductor portions on the side of said winding taps toward the center axis of said winding, and arranging said inactive conductor portions circumferentially about a mandrel in the form of a braid on the side opposite to said taps.
Claim 5
Dependent Claim
15 words
A method according to claim 1, said armature winding comprising alternating ferromagnetic and current-carrying conductors.
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) | 1978-03-17 | 1978-09-16 | 1979-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-17 | 1982-09-16 | 1983-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-17 | 1986-09-16 | 1987-03-18 | $7700.00 | Window Closed / Lapsed |