US3261339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetostrictive transformer
Assignee: Tung Sol Electric Inc
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Filing: 1963-03-11
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Granted: 1966-07-19
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Expires: 1983-03-11
Abstract
No abstract record available.
Inventors
- 👤 Halsey P Quinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:13
CPC Classifications
F; F02; F02D; F02D41/00; F02D41/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
AN IGNITION CIRCUIT FOR INTERNAL COMBUSTION ENGINES COMPRISING; AN INPUT CIRCUIT INCLUDING A SOURCE OF DIRECT CURRENT, A PAIR OF BREAKER CONTACTS, AND CIRCUIT MEANS FOR GENERATING A SERIES OF CURRENT PULSES; A TRANSFORMER WHICH INCLUDES A WINDING ON A MAGNETOSTRICTIVE CORE AND A PAIR OF PIEZOELECTRIC CRYSTALS MECHANICALLY COUPLED TO A PORTION OF SAID CORE, SAID WINDING HAVING ITS TERMINALS CONNECTED TO SAID INPUT CIRCUIT FOR RECEIVING SAID CURRENT PULSES; AN OUTPUT CIRCUIT INCLUDING A STORAGE CAPACITOR CONNECTED IN SERIES WITH A PRIMARY WINDING OF AN OUTPUT TRANSFORMER AND A RECTIFIER; SAID OUTPUT CIRCUIT CONNECTED ACROSS ONE OF SAID CRYSTALS FOR CHARGING THE CAPACITOR DURING A CHARGING INTERVAL; AND A DISCHARGE DEVICE CONNECTED ACROSS SAID CAPACITOR AND SAID PRIMARY WINDING FOR DISCHARGING THE CAPACITOR THROUGH THE PRIMARY WINDING DURING A DISCHARGE INTERVAL, SAID DISCHARGE DEVICE COUPLED TO THE OTHER CRYSTAL FOR INITIATING THE DISCHARGE.
Claim 2
Dependent Claim
145 words
AN IGNITION CIRCUIT FOR INTERNAL COMBUSTION ENGINES COMPRISING; AN INPUT CIRCUIT INCLUDING A SOURCE OF DIRECT CURRENT, A PAIR OF BREAKER CONTACTS, AND CIRCUIT MEANS FOR GENERATING A SERIES OF CURRENT PULSES; A TRANSFORMER WHICH INCLUDES A WINDING ON A MAGNETOSTRICTIVE CORE AND A PAIR OF PIEZOELECTRIC CRYSTALS MECHANICALLY COUPLED TO A PORTION OF SAID CORE, SAID WINDING HAVING ITS TERMINALS CONNECTED TO SAID INPUT CIRCUIT FOR RECEIVING SAID CURRENT PULSES; AN OUTPUT CIRCUIT INCLUDING A STORAGE CAPACITOR CONNECTED IN SERIES WITH A PRIMARY WINDING OF AN OUTPUT TRANSFORMER AND A RECTIFIER; SAID OUTPUT CIRCUIT CONNECTED ACROSS ONE OF SAID CRYSTALS FOR CHARGING THE CAPACITOR DURING A CHARGING INTERVAL; AND A DISCHARGE DEVICE CONNECTED ACROSS SAID CAPACITOR AND SAID PRIMARY WINDING FOR DISCHARGING THE CAPACITOR THROUGH THE PRIMARY WINDING DURING A DISCHARGE INTERVAL, SAID DISCHARGE DEVICE COUPLED TO THE OTHER CRYSTAL FOR INITIATING THE DISCHARGE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |