US3079542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Current supply apparatus
Assignee: North Electric Co
•
Filing: 1960-03-29
•
Granted: 1963-02-26
•
Expires: 1980-03-29
Abstract
No abstract record available.
Inventors
- 👤 Everette C Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:10
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/32; G05F1/34; G05F1/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
IN COMBINATION, A TRANSFORMER HAVING A CORE OF SATURABLE SUBSTANTIALLY SQUARE HYSTERESIS LOOP MAGNETIC MATERIAL, AND MEANS COMPRISING SAID TRANSFORMER FOR CONTROLLING THE SUPPLY OF CURRENT TO A LOAD CIRCUIT FROM A SOURCE OF ALTERNATING CURRENT HAVING A SUBSTANTIALLY CONSTANT FUNDAMENTAL FREQUENCY AND HAVING A PEAK VOLTAGE WHICH MAY VARY, SAID MEANS COMPRISING MEANS RESPONSIVE TO CURRENT IN SAID LOAD CIRCUIT FOR COMPLETING A CURRENT PATH FOR SUPPLYING FROM SAID SOURCE TO SAID TRANSFORMER CURRENT FOR CAUSING SAID CORE TO SATURATE DURING A HALF CYCLE PERIOD OF SAID ALTERNATING-CURRENT SOURCE, AND MEANS RESPONSIVE TO THE SATURATION OF SAID CORE FOR INTERRUPTING SAID CURRENT PATH.
Claim 2
Dependent Claim
104 words
IN COMBINATION, A TRANSFORMER HAVING A CORE OF SATURABLE SUBSTANTIALLY SQUARE HYSTERESIS LOOP MAGNETIC MATERIAL, AND MEANS COMPRISING SAID TRANSFORMER FOR CONTROLLING THE SUPPLY OF CURRENT TO A LOAD CIRCUIT FROM A SOURCE OF ALTERNATING CURRENT HAVING A SUBSTANTIALLY CONSTANT FUNDAMENTAL FREQUENCY AND HAVING A PEAK VOLTAGE WHICH MAY VARY, SAID MEANS COMPRISING MEANS RESPONSIVE TO CURRENT IN SAID LOAD CIRCUIT FOR COMPLETING A CURRENT PATH FOR SUPPLYING FROM SAID SOURCE TO SAID TRANSFORMER CURRENT FOR CAUSING SAID CORE TO SATURATE DURING A HALF CYCLE PERIOD OF SAID ALTERNATING-CURRENT SOURCE, AND MEANS RESPONSIVE TO THE SATURATION OF SAID CORE FOR INTERRUPTING SAID CURRENT PATH.
References Cited (Backward Citations)
US2591918A
Cited
US2632870A
Cited
US2753510A
Cited
US2798571A
Cited
US2772370A
Cited
US2764725A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |