US3286159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Current supply apparatus employing electric waveform conversion
Assignee: North Electric Co
•
Filing: 1963-02-11
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Granted: 1966-11-15
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Expires: 1983-02-11
Abstract
No abstract record available.
Inventors
- 👤 Richard E Kuba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:10
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/45; G; G05; G05F; G05F3/00; G05F3/02; G05F3/04; G05F3/06; H01; H01F; H01F27/00; H01F27/34; H01F27/38; H01F27/385; H01F38/00; H01F38/02; H01F38/06; H01F38/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
1,. A CURRENT SUPPLY APPARATUS INCLUDING AN ALTERNATING CURRENT SUPPLY SOURCE COMPRISING A FERRORESONANT TRANSFORMER FOR PROVIDING SIGNALS IN A CYCLE MANNER HAVING A PLURALITY OF FREQUENCY COMPONENTS, A VARIABLE LOAD, WAVEFROM CORRECTION MEANS CONTROLLED BY SAID SIGNALS FOR PROVIDING A SUBSTANTIALLY SINUSOIDAL HARMONIC-FREE OUTPUT VOLTAGE WAVEFORM TO SAID LOAD INCLUDING A TRANSFORMER COMPRISING A CORE, A PRIMARY WINDING ON SAID CORE, A SECONDARY WINDING ON SAID CORE, A FIRST HIGH RELUCTANCE MAGNETIC PATH INCLUDING SHUNT MEANS MAGNETICALLY DISPOSED BETWEEN SAID PRIMARY AND SECONDARY WINDINGS, AND A SECOND HIGH RELUCTANCE MAGNETIC PATH INCLUDING MEANS
Claim 2
Dependent Claim
94 words
1,. A CURRENT SUPPLY APPARATUS INCLUDING AN ALTERNATING CURRENT SUPPLY SOURCE COMPRISING A FERRORESONANT TRANSFORMER FOR PROVIDING SIGNALS IN A CYCLE MANNER HAVING A PLURALITY OF FREQUENCY COMPONENTS, A VARIABLE LOAD, WAVEFROM CORRECTION MEANS CONTROLLED BY SAID SIGNALS FOR PROVIDING A SUBSTANTIALLY SINUSOIDAL HARMONIC-FREE OUTPUT VOLTAGE WAVEFORM TO SAID LOAD INCLUDING A TRANSFORMER COMPRISING A CORE, A PRIMARY WINDING ON SAID CORE, A SECONDARY WINDING ON SAID CORE, A FIRST HIGH RELUCTANCE MAGNETIC PATH INCLUDING SHUNT MEANS MAGNETICALLY DISPOSED BETWEEN SAID PRIMARY AND SECONDARY WINDINGS, AND A SECOND HIGH RELUCTANCE MAGNETIC PATH INCLUDING MEANS
References Cited (Backward Citations)
US2694177A
Cited
US2858455A
Cited
US2753512A
Cited
US2930964A
Cited
US2992386A
Cited
US3022458A
Cited
US3061769A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |