US3138742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for measuring current flow in and voltage of a high voltage alternating current conductor
Assignee: Individual
•
Filing: 1962-02-13
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Granted: 1964-06-23
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Expires: 1982-02-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Edmund O Schweitzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:39
CPC Classifications
G; G01; G01R; G01R15/00; G01R15/14; G01R15/142; H; H01; H01F; H01F38/00; H01F38/20; H01F38/22; H01F38/28; H01F38/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
MEANS RESPONSIVE TO THE FLOW OF ALTERNATING CURRENT IN A CONDUCTOR ENERGIZED AT A VOLTAGE OF THE ORDER OF SEVERAL THOUSAND VOLTS COMPRISING, IN COMBINATION, AN ELONGATED GENERALLY O-SHAPED CORE HAVING ITS SIDES FORMED OF FERROMAGNETIC CERAMIC MATERIAL OF THE FERRITE TYPE HAVING RELATIVELY HIGH RESISTIVITY AND HIGH MAGNETIC PERMEABILITY, SAID CORE BEING POSITIONED IN CLOSE PROXIMITY TO SAID CONDUCTOR TO LINK THE MAGNETIC FIELD GENERATED BY ALTERNATING CURRENT FLOW THERETHROUGH WHEREBY SAID CORE IS ENERGIZED AT SAID ONE END SUBSTANTIALLY AT THE VOLTAGE OF SAID CONDUCTOR AND IT HAS ALTERNATING MAGNETIC FLUX INDUCED THEREIN, WINDING MEANS LINKING THE OTHER END OF SAID O-SHAPED CORE FOR INDUCTION THEREIN OF ALTERNATING CURRENT VARYING IN MAGNITUDE IN ACCORDANCE WITH THE CURRENT FLOW IN SAID CONDUCTOR, AND CURRENT RESPONSIVE MEANS CONNECTED TO SAID WINDING MEANS.
Claim 2
Dependent Claim
132 words
MEANS RESPONSIVE TO THE FLOW OF ALTERNATING CURRENT IN A CONDUCTOR ENERGIZED AT A VOLTAGE OF THE ORDER OF SEVERAL THOUSAND VOLTS COMPRISING, IN COMBINATION, AN ELONGATED GENERALLY O-SHAPED CORE HAVING ITS SIDES FORMED OF FERROMAGNETIC CERAMIC MATERIAL OF THE FERRITE TYPE HAVING RELATIVELY HIGH RESISTIVITY AND HIGH MAGNETIC PERMEABILITY, SAID CORE BEING POSITIONED IN CLOSE PROXIMITY TO SAID CONDUCTOR TO LINK THE MAGNETIC FIELD GENERATED BY ALTERNATING CURRENT FLOW THERETHROUGH WHEREBY SAID CORE IS ENERGIZED AT SAID ONE END SUBSTANTIALLY AT THE VOLTAGE OF SAID CONDUCTOR AND IT HAS ALTERNATING MAGNETIC FLUX INDUCED THEREIN, WINDING MEANS LINKING THE OTHER END OF SAID O-SHAPED CORE FOR INDUCTION THEREIN OF ALTERNATING CURRENT VARYING IN MAGNITUDE IN ACCORDANCE WITH THE CURRENT FLOW IN SAID CONDUCTOR, AND CURRENT RESPONSIVE MEANS CONNECTED TO SAID WINDING MEANS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |