US3439243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brushless torquer
Assignee: Northrop Grumman Guidance and Electronics Co Inc
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Filing: 1966-03-25
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Granted: 1969-04-15
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Expires: 1986-03-25
Abstract
No abstract record available.
Inventors
- 👤 Karl Roth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:53
CPC Classifications
G; G08; G08C; G08C19/00; G08C19/38; G08C19/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A BRUSHLESS TORQUER COMPRISING; A STATOR AND FIRST PLURALITY OF WINDINGS MOUNTED UPON A SHAFT IN FORCE REACTIVE RELATIONSHIP WITH SAID STATOR, A FIRST ROTARY INDUCTIVE MEANS HAVING A SECOND PLURALITY OF WINDINGS MOUNTED UPON SAID SHAFT ANGULARLY MOVABLE WITH RESPECT TO AND IN INDUCTIVE RELATIONSHIP WITH A STATOR WINDING, SWITCHING MEANS INTERCONNECTING SAID FIRST AND SECOND PLURALITY OF WINDINGS FOR TRANSMITTING SIGNALS FROM SAID SECOND TO SAID FIRST PLURALITY OF WINDINGS, AND SECOND ROTARY INDUCTIVE MEANS HAVING A WINDING ON SAID SHAFT ANGULARLY MOVABLE WITH RESPECT TO AND INDUCTIVE RELATIONSHIP WITH A SECOND STATOR WINDING FOR CONTROLLING THE SWITCHING MEANS.
Claim 2
Dependent Claim
101 words
A BRUSHLESS TORQUER COMPRISING; A STATOR AND FIRST PLURALITY OF WINDINGS MOUNTED UPON A SHAFT IN FORCE REACTIVE RELATIONSHIP WITH SAID STATOR, A FIRST ROTARY INDUCTIVE MEANS HAVING A SECOND PLURALITY OF WINDINGS MOUNTED UPON SAID SHAFT ANGULARLY MOVABLE WITH RESPECT TO AND IN INDUCTIVE RELATIONSHIP WITH A STATOR WINDING, SWITCHING MEANS INTERCONNECTING SAID FIRST AND SECOND PLURALITY OF WINDINGS FOR TRANSMITTING SIGNALS FROM SAID SECOND TO SAID FIRST PLURALITY OF WINDINGS, AND SECOND ROTARY INDUCTIVE MEANS HAVING A WINDING ON SAID SHAFT ANGULARLY MOVABLE WITH RESPECT TO AND INDUCTIVE RELATIONSHIP WITH A SECOND STATOR WINDING FOR CONTROLLING THE SWITCHING MEANS.
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) | 1972-04-14 | 1972-10-14 | 1973-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-14 | 1976-10-14 | 1977-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-14 | 1980-10-14 | 1981-04-15 | $7700.00 | Window Closed / Lapsed |