US3295045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phase and frequency conversion system
Assignee: Ohio Crankshaft Co
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Filing: 1963-06-21
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Granted: 1966-12-27
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Expires: 1983-06-21
Abstract
No abstract record available.
Inventors
- 👤 Dante J Domizi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:30
CPC Classifications
H; H01; H01F; H01F30/00; H01F30/06; H01F30/12; H01F30/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A SYSTEM FOR CONVERTING ELECTRICAL POWER FROM A MULTIPHASE SOURCE OF KNOWN FREQUENCY INTO A SINGLE PHASE ELECTRICAL POWER, EACH PHASE OF SAID SOURCE INCLUDING A PRIMARY CIRCUIT WITH SAID CIRCUITS JOINED AT A COMMON POINT, SAID SYSTEM COMPRISING, IN COMBINATION: A SATURATING TRANSFORMER FOR EACH PRIMARY CIRCUIT AND HAVING A PRIMARY WINDING IN THAT CIRCUIT; A NON-SATURATING INDUCTANCE IN EACH PRIMARY CIRCUIT, SAID INDUCTANCES EACH FORMING A BLOCKING CHOKE IN SAID PRIMARY CIRCUITS; SECONDARY WINDINGS ON SAID TRANSFORMERS AND IN ELECTRICAL SERIES WITH EACH OTHER TO FORM A SINGLE PHASE OUTPUT CIRCUIT; AND, A SEPARATE WIND BAND WAVE TRAP IN EACH OF SAID PRIMARY CIRCUITS, SAID WAVE TRAPS BEING LOCATED BETWEEN SAID PRIMARY WINDINGS AND SAID INDUCTANCES AND BEING TUNED TO ATTENUATE LOW ORDER HARMONICS OF SAID KNOWN FREQUENCY WHEREBY SAID INDUCTANCES ARE SUBJECTED TO PRIMARILY SAID KNOWN FREQUENCY AND HIGH ORDER HARMONICS THEREOF.
Claim 2
Independent Claim
145 words
A SYSTEM FOR CONVERTING ELECTRICAL POWER FROM A MULTIPHASE SOURCE OF KNOWN FREQUENCY INTO A SINGLE PHASE ELECTRICAL POWER, EACH PHASE OF SAID SOURCE INCLUDING A PRIMARY CIRCUIT WITH SAID CIRCUITS JOINED AT A COMMON POINT, SAID SYSTEM COMPRISING, IN COMBINATION: A SATURATING TRANSFORMER FOR EACH PRIMARY CIRCUIT AND HAVING A PRIMARY WINDING IN THAT CIRCUIT; A NON-SATURATING INDUCTANCE IN EACH PRIMARY CIRCUIT, SAID INDUCTANCES EACH FORMING A BLOCKING CHOKE IN SAID PRIMARY CIRCUITS; SECONDARY WINDINGS ON SAID TRANSFORMERS AND IN ELECTRICAL SERIES WITH EACH OTHER TO FORM A SINGLE PHASE OUTPUT CIRCUIT; AND, A SEPARATE WIND BAND WAVE TRAP IN EACH OF SAID PRIMARY CIRCUITS, SAID WAVE TRAPS BEING LOCATED BETWEEN SAID PRIMARY WINDINGS AND SAID INDUCTANCES AND BEING TUNED TO ATTENUATE LOW ORDER HARMONICS OF SAID KNOWN FREQUENCY WHEREBY SAID INDUCTANCES ARE SUBJECTED TO PRIMARILY SAID KNOWN FREQUENCY AND HIGH ORDER HARMONICS THEREOF.
References Cited (Backward Citations)
GB291529A
Cited
US2008515A
Cited
US2210384A
Cited
US3038113A
Cited
US3040230A
Cited
US3040231A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |