Patent US3241048A successfully refreshed from Google Patents.
US3241048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transformer system for inverters
Assignee: Basler Electric Co
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Filing: 1961-12-04
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Granted: 1966-03-15
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Expires: 1981-12-04
Abstract
No abstract record available.
Inventors
- 👤 Robert H Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:26
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/02; H02M7/04; H02M7/06; H02M7/068
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
CURRENT-LIMITING MEANS FOR USE WITH A DEVICE ADAPTED TO GENERATE ALTERNATING CURRENT FOR A LOAD-CIRCUIT; SAID MEANS COMPRISING OUTPUT LEADS MEANS FROM THE DEVICE, TRANSFORMER MEANS HAVING A PRIMARY CIRCUIT CONNECTED ACROSS THE OUTPUT LEADS, A FIRST WINDING INDUCTIVELY COUPLED TO THE PRIMARY CIRCUIT FOR DELIVERING CURRENT TO THE LOADCIRCUIT, A SECOND WINDING INDUCTIVELY COUPLED TO THE PRIMARY CIRCUIT, THE SECOND WINDING HAVING A PLURALITY OF INTERMEDIATE TAPS THEREBY DIVIDING THE SECOND WINDING INTO A PLURALITY OF SECTIONS, AND A PAIR OF AUXIALIARY WINDINGS INDUCTIVELY COUPLED TO THE PRIMARY CIRCUIT AND RESPECTIVELY CONNECTED IN SERIES WITH DIFFERENT PORTIONS OF THE SECOND WINDING WHEREBY TO GENERATE A CURRENT-LIMITING SIGNAL PROPORTIONAL TO OVERLOAD CONDITIONS IN THE LOAD-CIRCUIT.
Claim 2
Dependent Claim
115 words
CURRENT-LIMITING MEANS FOR USE WITH A DEVICE ADAPTED TO GENERATE ALTERNATING CURRENT FOR A LOAD-CIRCUIT; SAID MEANS COMPRISING OUTPUT LEADS MEANS FROM THE DEVICE, TRANSFORMER MEANS HAVING A PRIMARY CIRCUIT CONNECTED ACROSS THE OUTPUT LEADS, A FIRST WINDING INDUCTIVELY COUPLED TO THE PRIMARY CIRCUIT FOR DELIVERING CURRENT TO THE LOADCIRCUIT, A SECOND WINDING INDUCTIVELY COUPLED TO THE PRIMARY CIRCUIT, THE SECOND WINDING HAVING A PLURALITY OF INTERMEDIATE TAPS THEREBY DIVIDING THE SECOND WINDING INTO A PLURALITY OF SECTIONS, AND A PAIR OF AUXIALIARY WINDINGS INDUCTIVELY COUPLED TO THE PRIMARY CIRCUIT AND RESPECTIVELY CONNECTED IN SERIES WITH DIFFERENT PORTIONS OF THE SECOND WINDING WHEREBY TO GENERATE A CURRENT-LIMITING SIGNAL PROPORTIONAL TO OVERLOAD CONDITIONS IN THE LOAD-CIRCUIT.
References Cited (Backward Citations)
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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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |