US4274020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synchronous linear motor
Assignee: Siemens AG
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Filing: 1979-09-26
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Granted: 1981-06-16
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Expires: 1999-09-26
Abstract
Abstract In a synchronous linear motor having a traveling field winding which is subdivided into switching sections, each of which is supplied from a converter with current carrying rails of the traveling field winding designed as conductor ribbons with several individual conductors, at a change of switching sections, the individual conductors of the conductor ribbons are interchanged consecutively in such a manner that individual conductors of the one switching section are successively brought out and individual conductors of the next switching section looped in at spacings which are integral multiples of a pole pitch division.
Inventors
- 👤 Claus P. Parsch
- 👤 John P. Gibson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:59
CPC Classifications
B; B60; B60L; B60L13/00; H; H02; H02K; H02K41/00; H02K41/02; H02K41/03; B60L2200/00; B60L2200/26; B60L2220/00; B60L2220/10; B60L2220/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
In a synchronous linear motor, especially a long stator motor, the excitation device of which is designed as a moving translator and is arranged on a track-bound vehicle, having a traveling field winding divided into switching sections which are installed in meander fashion along the line and supplied from respective stationary controlled static converters, the current carrying rails of the traveling field winding being designed as conductor ribbons with several individual conductors, the improvement comprising, at a change of switching sections, the individual conductors of the conductor ribbons being sequentially interchanged in such a manner that, at intervals which correspond to an integral multiple of a pole pitch division, successive individual conductors of the one switching section are brought out and individual conductors of the next switching section looped in.
Claim 2
Dependent Claim
130 words
In a synchronous linear motor, especially a long stator motor, the excitation device of which is designed as a moving translator and is arranged on a track-bound vehicle, having a traveling field winding divided into switching sections which are installed in meander fashion along the line and supplied from respective stationary controlled static converters, the current carrying rails of the traveling field winding being designed as conductor ribbons with several individual conductors, the improvement comprising, at a change of switching sections, the individual conductors of the conductor ribbons being sequentially interchanged in such a manner that, at intervals which correspond to an integral multiple of a pole pitch division, successive individual conductors of the one switching section are brought out and individual conductors of the next switching section looped in.
References Cited (Backward Citations)
US4068152A
Cited
US4205243A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-06-15 | 1984-12-15 | 1985-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-15 | 1988-12-15 | 1989-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-15 | 1992-12-15 | 1993-06-16 | $7700.00 | Window Closed / Lapsed |