US3072837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic multivibrator amplifier power supply
Assignee: International Business Machines Corp
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Filing: 1958-05-13
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Granted: 1963-01-08
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Expires: 1978-05-13
Abstract
No abstract record available.
Inventors
- 👤 Hakimoglu Ayhan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:42
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/45; G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/40; G05F1/44; H02; H02M; H02M3/00; H02M3/22; H02M3/24; H02M3/28; H02M3/325; H02M3/335; H02M3/338; H02M3/3385; H03K3/26; H03K3/30
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
162 words
A POWER SUPPLY COMPRISING; MEANS INCLUDING A SERIES TRANSISTOR AND A FILTER CIRCUIT FOR CONNECTING A LOAD CIRCUIT TO A SOURCE; A MAGNETIC MULTIVIBRATOR AMPLIFIER HAVING AN OUTPUT WINDING CONNECTED TO APPLY A VARIABLE FREQUENCY SIGNAL TO CONTROL BASE CURRENT OF THE TRANSISTOR, AND HAVING A PLURALITY OF OTHER WINDINGS; MEANS CONNECTING ONE OF SAID OTHER WINDINGS TO EFFECT SUBSTANTIALLY CONSTANT VOLTAGE ENERGIZATION THEREOF AT TIMES TO SET THE CORE; MEANS CONNECTING ANOTHER ONE OF SAID OTHER WINDINGS TO AFFECT SUBSTANTIALLY CONSTANT CURRENT RESET OF THE CORE IN BETWEEN SAID TIMES; AN ERROR CIRCUIT COMPRISING A VOLTAGE DIVIDER AND A ZENER DIODE REFERENCE SOURCE ACROSS THE LOAD CIRCUIT; A TRANSISTOR CONNECTED IN CIRCUIT WITH ANOTHER ONE OF SAID WINDINGS, AND MEANS INCLUDING A TRANSISTOR ERROR SIGNAL AMPLIFIER AND A DIODE CONNECTING THE ERROR CIRCUIT TO CONTROL THE TRANSISTOR OF SAID YET ANOTHER ONE OF SAID OTHER WINDINGS FOR VARYING THE RESET TIME OF THE CORE IN RESPONSE TO VARIATIONS IN ERROR SIGNAL.
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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |