US3418486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Current selection and limiting circuits
Assignee: Schneider Electric Systems USA Inc
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Filing: 1966-10-27
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Granted: 1968-12-24
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Expires: 1986-10-27
Abstract
No abstract record available.
Inventors
- 👤 Francis G Shinskey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:45
CPC Classifications
G; G01; G01R; G01R19/00; G01R19/0038
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
195 words
REGULATING MEANS FOR USE WITH ELECTRICAL APPARATUS FOR DISCRIMINATING AMONG A PLURALITY OF ELECTRICAL CURRENT SOURCES ON THE BASIS OF THE RELATIVE MAGNITUDE OF THE CURRENTS FROM SAID ELECTRICAL CURRENT SOURCES SO THAT CURRENT IS SUPPLIED FROM SAID PLURALITY OF ELECTRICAL CURRENT SOURCES TO OUTPUT TERMINALS OF SAID APPARATUS IN ACCORDANCE WITH THE DISCRIMINATION PERFORMED BY SAID APPARATUS COMPRISING, AN ELECTRICAL COMPONENT DISPOSED SERIALLY BETWEEN A PLURALITY OF ELECTRICAL CURRENT SOURCES AND OUTPUT TERMINALS, AND AMPLIFYING MEANS RESPONSIVE TO AN OPERATING POTENTIAL DERIVED FROM THE INDIVIDUAL POTENTIALS ASSOCIATED WITH EACH OF SAID ELECTRICAL CURRENT SOURCES AND SAID AMPLIFYING MEANS HAVING A REGULATING CURRENT OUTPUT HAVING A MAGNITUDE RELATED TO THE DEVIATION OF SAID OPERATING POTENTIAL FROM A PREDETERMINED DESIRED POTENTIAL AND SAID CURRENT OUTPUT BEING SUPPLIED TO SAID ELECTRICAL COMPONENT IN A DIRECTION MAKING THE POLARITY ACROSS SAID ELECTRICAL COMPONENT OPPOSE THE POLARITY APPEARING AT SAID OUTPUT TERMINALS SO THAT THE DIFFERENCE THEREBETWEEN APPEARS ACROSS SAID ELECTRICAL CURRENT SOURCES AND CAUSES SAID OPERATING POTENTIAL TO APPROACH SAID PREDETERMINED DESIRED POTENTIAL WHEREBY THE INDIVIDUAL POTENTIAL ASSOCIATED WITH EACH OF SAID PLURALITY OF ELECTRICAL CURRENT SOURCES ARE MAINTAINED AT VALUES APPROPRIATE FOR PROPER OPERATION OF SAID APPARATUS.
Claim 2
Dependent Claim
195 words
REGULATING MEANS FOR USE WITH ELECTRICAL APPARATUS FOR DISCRIMINATING AMONG A PLURALITY OF ELECTRICAL CURRENT SOURCES ON THE BASIS OF THE RELATIVE MAGNITUDE OF THE CURRENTS FROM SAID ELECTRICAL CURRENT SOURCES SO THAT CURRENT IS SUPPLIED FROM SAID PLURALITY OF ELECTRICAL CURRENT SOURCES TO OUTPUT TERMINALS OF SAID APPARATUS IN ACCORDANCE WITH THE DISCRIMINATION PERFORMED BY SAID APPARATUS COMPRISING, AN ELECTRICAL COMPONENT DISPOSED SERIALLY BETWEEN A PLURALITY OF ELECTRICAL CURRENT SOURCES AND OUTPUT TERMINALS, AND AMPLIFYING MEANS RESPONSIVE TO AN OPERATING POTENTIAL DERIVED FROM THE INDIVIDUAL POTENTIALS ASSOCIATED WITH EACH OF SAID ELECTRICAL CURRENT SOURCES AND SAID AMPLIFYING MEANS HAVING A REGULATING CURRENT OUTPUT HAVING A MAGNITUDE RELATED TO THE DEVIATION OF SAID OPERATING POTENTIAL FROM A PREDETERMINED DESIRED POTENTIAL AND SAID CURRENT OUTPUT BEING SUPPLIED TO SAID ELECTRICAL COMPONENT IN A DIRECTION MAKING THE POLARITY ACROSS SAID ELECTRICAL COMPONENT OPPOSE THE POLARITY APPEARING AT SAID OUTPUT TERMINALS SO THAT THE DIFFERENCE THEREBETWEEN APPEARS ACROSS SAID ELECTRICAL CURRENT SOURCES AND CAUSES SAID OPERATING POTENTIAL TO APPROACH SAID PREDETERMINED DESIRED POTENTIAL WHEREBY THE INDIVIDUAL POTENTIAL ASSOCIATED WITH EACH OF SAID PLURALITY OF ELECTRICAL CURRENT SOURCES ARE MAINTAINED AT VALUES APPROPRIATE FOR PROPER OPERATION OF SAID APPARATUS.
References Cited (Backward Citations)
US3060320A
Cited
US3083321A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |