US3210654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct current flux detector
Assignee: Collins Radio Co
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Filing: 1961-08-07
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Granted: 1965-10-05
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Expires: 1981-08-07
Abstract
No abstract record available.
Inventors
- 👤 Benjamin B Biderman
- 👤 Arnold F Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:27
CPC Classifications
G; G01; G01R; G01R33/00; G01R33/02; G01R33/04; G01R33/045; G01C; G01C17/00; G01C17/02; G01C17/28; G01C17/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A FLUX DETECTOR COMPRISING A TOROIDAL CORE, EXCITATION WINDINGS WOUND ABOUT SAID CORE; A SATURABLE CORE OSCILLATOR INCLUDING A DIRECT CURRENT VOLTAGE SOURCE AND SAID EXCITATION WINDINGS IN CONJUNCTION WITH SWITCHING MEANS BY WHICH CURRENT FLOWS ALTERNATELY AND OPPOSITELY THROUGH SAID EXCITATION WINDINGS SO AS TO ALTERNATELY AND OPPOISTELY SATURATE SAID TOROIDAL CORRE; A PLURALITY OF SYMMETRICALLY DISPLACED OUTPUT WINDINGS WOUND ABOUT SAID TOROIDAL CORE, SAID OUTPUT WINDINGS HAVING FIRST ENDS CONNECTED IN COMMON, A CONTROL TRANSFORMER WITH STATOR WINDINGS HAVING FIRST ENDS THEREOF CONNECTED TOGETHER, THE SECOND ENDS OF SAID OUTPUT WINDINGS CONNECTED RESPECTIVELY AND INDIVIDUALLY TO THE SECOND ENDS OF SAID CONTROL TRANSFORMER WINDINGS, SAID CONTROL TRANSFORMER HAVING A ROTOR, A MOTOR CONNECTED TO THE OUTPUT OF SAID ROTOR, AND THE OUTPUT SHAFT OF SAID MOTOR BEING CONNECTED TO AND POSITIONING SAID CONTROL TRANSFORMER ROTOR.
Claim 2
Dependent Claim
137 words
A FLUX DETECTOR COMPRISING A TOROIDAL CORE, EXCITATION WINDINGS WOUND ABOUT SAID CORE; A SATURABLE CORE OSCILLATOR INCLUDING A DIRECT CURRENT VOLTAGE SOURCE AND SAID EXCITATION WINDINGS IN CONJUNCTION WITH SWITCHING MEANS BY WHICH CURRENT FLOWS ALTERNATELY AND OPPOSITELY THROUGH SAID EXCITATION WINDINGS SO AS TO ALTERNATELY AND OPPOISTELY SATURATE SAID TOROIDAL CORRE; A PLURALITY OF SYMMETRICALLY DISPLACED OUTPUT WINDINGS WOUND ABOUT SAID TOROIDAL CORE, SAID OUTPUT WINDINGS HAVING FIRST ENDS CONNECTED IN COMMON, A CONTROL TRANSFORMER WITH STATOR WINDINGS HAVING FIRST ENDS THEREOF CONNECTED TOGETHER, THE SECOND ENDS OF SAID OUTPUT WINDINGS CONNECTED RESPECTIVELY AND INDIVIDUALLY TO THE SECOND ENDS OF SAID CONTROL TRANSFORMER WINDINGS, SAID CONTROL TRANSFORMER HAVING A ROTOR, A MOTOR CONNECTED TO THE OUTPUT OF SAID ROTOR, AND THE OUTPUT SHAFT OF SAID MOTOR BEING CONNECTED TO AND POSITIONING SAID CONTROL TRANSFORMER ROTOR.
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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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |