US3155844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic integrator including hall effect device and unijunction transistor switchesfor providing step-like flux density
Assignee: Lear Siegler Inc
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Filing: 1961-06-02
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Granted: 1964-11-03
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Expires: 1981-06-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Samuel H Auld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:00
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/18; G06G7/182
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
249 words
IN COMBINATION: AN ALTERNATING CURRENT INPUT SIGNAL MEANS, A DEMODULATING MEANS HAVING AN INPUT ELECTRICALLY CONNECTED TO RECEIVE SAID INPUT SIGNAL, AND HAVING FIRST AND SECOND OUTPUT CHANNELS, FIRST AND SECOND RESISTOR-CAPACITOR NETWORKS, CONNECTED TO SAID FIRST AND SECOND OUTPUT CHANNELS RESPECTIVELY, FIRST AND SECOND UNIJUNCTION TRANSISTORS HAVING BASE 1, BASE 2 AND EMITTER ELECTRODES, AND HAVING THE SAID EMITTER ELECTRODE OF EACH OF SAID TRANSISTORS CONNECTED TO SAID FIRST AND SECOND RESISTOR-CAPACITOR NETWORKS, RESPECTIVELY, SAID BASE 1 ELECTRODES OF SAID TRANSISTORS BEING CONNECTED TO SIGNAL POWER INPUT MEANS, A CORE OF A MAGNETIC MATERIAL HAVING A GAP THEREIN, A HALL EFFECT MEMBER IN SAID GAP, A MAGNETIZING COIL WOUND ABOUT SAID CORE AND HAVING ONE OF ITS ENDS CONNECTED TO THE BASE 2 ELECTRODE OF SAID FIRST TRANSISTOR AND THE OTHER OF ITS ENDS CONNECTED TO THE BASE 2 ELECTRODE OF SAID SECOND TRANSISTOR, SAID COIL HAVING AN INTERMEDIATE TAP TO GROUND, WHEREBY INTERMITTENT PULSES FROM SAID FIRST TRANSISTOR PASS FROM ONE END OF SAID COIL TO SAID TAP TO GROUND, CAUSING THE FLOW OF MAGNETIC FLUX TO BUILD UP IN ONE DIRECTION IN SAID CORE, AND WHEREBY INTERMITTENT PULSES FROM SAID SECOND TRANSISTOR PASS FROM SAID OTHER END OF SAID COIL TO SAID TAP TO GROUND, CAUSING THE FLOW OF MAGNETIC FLUX TO BUILD UP IN A DIRECTION OPPOSITE TO SAID ONE DIRECTION, WHEREBY THE RESULTANT MAGNETIX FLUX IN MAGNITUDE AND DIRECTION IS DETERMINED BY THE DIFFERENCE BETWEEN THE LINES OF FORCE BUILT UP IN OPPOSING DIRECTIONS.
Claim 2
Dependent Claim
249 words
IN COMBINATION: AN ALTERNATING CURRENT INPUT SIGNAL MEANS, A DEMODULATING MEANS HAVING AN INPUT ELECTRICALLY CONNECTED TO RECEIVE SAID INPUT SIGNAL, AND HAVING FIRST AND SECOND OUTPUT CHANNELS, FIRST AND SECOND RESISTOR-CAPACITOR NETWORKS, CONNECTED TO SAID FIRST AND SECOND OUTPUT CHANNELS RESPECTIVELY, FIRST AND SECOND UNIJUNCTION TRANSISTORS HAVING BASE 1, BASE 2 AND EMITTER ELECTRODES, AND HAVING THE SAID EMITTER ELECTRODE OF EACH OF SAID TRANSISTORS CONNECTED TO SAID FIRST AND SECOND RESISTOR-CAPACITOR NETWORKS, RESPECTIVELY, SAID BASE 1 ELECTRODES OF SAID TRANSISTORS BEING CONNECTED TO SIGNAL POWER INPUT MEANS, A CORE OF A MAGNETIC MATERIAL HAVING A GAP THEREIN, A HALL EFFECT MEMBER IN SAID GAP, A MAGNETIZING COIL WOUND ABOUT SAID CORE AND HAVING ONE OF ITS ENDS CONNECTED TO THE BASE 2 ELECTRODE OF SAID FIRST TRANSISTOR AND THE OTHER OF ITS ENDS CONNECTED TO THE BASE 2 ELECTRODE OF SAID SECOND TRANSISTOR, SAID COIL HAVING AN INTERMEDIATE TAP TO GROUND, WHEREBY INTERMITTENT PULSES FROM SAID FIRST TRANSISTOR PASS FROM ONE END OF SAID COIL TO SAID TAP TO GROUND, CAUSING THE FLOW OF MAGNETIC FLUX TO BUILD UP IN ONE DIRECTION IN SAID CORE, AND WHEREBY INTERMITTENT PULSES FROM SAID SECOND TRANSISTOR PASS FROM SAID OTHER END OF SAID COIL TO SAID TAP TO GROUND, CAUSING THE FLOW OF MAGNETIC FLUX TO BUILD UP IN A DIRECTION OPPOSITE TO SAID ONE DIRECTION, WHEREBY THE RESULTANT MAGNETIX FLUX IN MAGNITUDE AND DIRECTION IS DETERMINED BY THE DIFFERENCE BETWEEN THE LINES OF FORCE BUILT UP IN OPPOSING DIRECTIONS.
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) | 1967-11-03 | 1968-05-04 | 1968-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-03 | 1972-05-04 | 1972-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-03 | 1976-05-04 | 1976-11-03 | $7700.00 | Window Closed / Lapsed |