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US3742268A
Expired / Lapsed
US
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Individual drive for textile machine spinning spindle
Assignee: Siemens AG
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Filing: 1971-06-02
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Granted: 1973-06-26
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Expires: 1991-06-02
Abstract
Abstract A spinning spindle of a textile machine is individually driven by a two-pole electric motor. The motor has a stator and a rotor rotatably journalled in the stator and coupled to the spindle. The stator includes a stator yoke and a flat ring winding surrounding the yoke.
Inventors
- 👤 W Volkrodt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:56
CPC Classifications
D; D01; D01H; D01H1/00; D01H1/14; D01H1/20; D01H1/24; D01H1/244; H; H02; H02K; H02K29/00; H02K29/06; H02K29/08; H02K3/00; H02K3/04; H02K3/12; H02K7/00; H02K7/14; H02K7/16; Y; Y10; Y10S; Y10S310/00; Y10S310/03
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
116 words
An individual drive for rotating a spindle of a textile machine, comprising a two-pole electric motor, said motor having a stator and a rotor rotatably journalled in said stator and coupled in the spindle, said stator including a stator yoke and a flat ring winding surrounding said yoke, said motor comprising permanent magnets disposed in said rotor for developing a magnetic field that moves with said rotor when the latter rotates, said rotor and said stator conjointly defining an air gap therebetween, and at least one galvanomagnetic device mounted at an end face of said stator in the vicinity of said air gap for detecting the instantaneous polarity and changes of polarity of said magnetic field.
Claim 2
Dependent Claim
116 words
An individual drive for rotating a spindle of a textile machine, comprising a two-pole electric motor, said motor having a stator and a rotor rotatably journalled in said stator and coupled in the spindle, said stator including a stator yoke and a flat ring winding surrounding said yoke, said motor comprising permanent magnets disposed in said rotor for developing a magnetic field that moves with said rotor when the latter rotates, said rotor and said stator conjointly defining an air gap therebetween, and at least one galvanomagnetic device mounted at an end face of said stator in the vicinity of said air gap for detecting the instantaneous polarity and changes of polarity of said magnetic field.
Claim 3
Dependent Claim
16 words
An individual drive as claimed in claim 1, wherein said galvanomagnetic device is a Hall generator.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |