US3237126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inverter power supply
Assignee: International Business Machines Corp
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Filing: 1961-12-18
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Granted: 1966-02-22
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Expires: 1981-12-18
Abstract
No abstract record available.
Inventors
- 👤 Orestes M Baycura
- 👤 David A Rosendahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:00
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/505; H02M7/515; H02M7/516
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
IN MAGNETIC TYPE INVERTER SYSTEM, (A) MAGNETIC CORE MEANS HAVING A PLURALITY OF WINDINGS THEREON, (B) A PAIR OF ELECTRODE CONTROLLED SWITCH DEVICES CONNECTING AT LEAST ONE OF SAID WINDINGS TO A DIRECT CURENT SOURCE FOR ENERGIZATION ALTERNATELY IN OPPOSITE SENSES, (C) CIRCUIT MEANS CONNECTING THE CONTROL ELECTRODE OF EACH DEVICE TO A WINDING ON THE CORE MEANS TO TRIGGER SAID DEVICES TO SO CONNECT SAID ONE WINDING, (D) AND MEANS INCLUDING SWITCH MEANS CONNECTING ANOTHER OF SAID WINDINGS TO BE ENERGIZED IN A PREDTERMINED SENSE PRIOR TO ENERGIZATION OF SAID ONE WINDING.
Claim 2
Dependent Claim
93 words
IN MAGNETIC TYPE INVERTER SYSTEM, (A) MAGNETIC CORE MEANS HAVING A PLURALITY OF WINDINGS THEREON, (B) A PAIR OF ELECTRODE CONTROLLED SWITCH DEVICES CONNECTING AT LEAST ONE OF SAID WINDINGS TO A DIRECT CURENT SOURCE FOR ENERGIZATION ALTERNATELY IN OPPOSITE SENSES, (C) CIRCUIT MEANS CONNECTING THE CONTROL ELECTRODE OF EACH DEVICE TO A WINDING ON THE CORE MEANS TO TRIGGER SAID DEVICES TO SO CONNECT SAID ONE WINDING, (D) AND MEANS INCLUDING SWITCH MEANS CONNECTING ANOTHER OF SAID WINDINGS TO BE ENERGIZED IN A PREDTERMINED SENSE PRIOR TO ENERGIZATION OF SAID ONE WINDING.
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) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |