Patent US3307098A successfully refreshed from Google Patents.
US3307098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inverter having a single selfcommutating thyristor
Assignee: Jefferson Electric Co
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Filing: 1963-07-12
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Granted: 1967-02-28
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Expires: 1983-07-12
Abstract
No abstract record available.
Inventors
- 👤 Jr Andrew Byron Elliott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:11
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/505; H02M7/515; H02M7/523; H05; H05B; H05B41/00; H05B41/14; H05B41/26; H05B41/28; H05B41/282; Y; Y02; Y02B; Y02B20/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
AN INVERTER COMPRISING A TRANSFORMER HAVING A PRIMARY WINDING AND A SECONDARY WINDING, SAID PRIMARY WINDING HAVING A FIRST END, A SECONE END, AND AN INTERMEDIATE TAP, A POSITIVE D.C. LEAD CONNECTED TO SAID INTERMEDIATE TAP, A NEGATIVE D.C. LEAD CONNECTED TO SAID FIRST END, SAID POSITIVE AND NEGATIVE LEADS HAVING TERMINALS FOR CONNECTION TO A D.C. SOURCE, AN SCR INTERPOSED IN SAID NEGATIVE LEAD BETWEEN SAID NEGATIVE TERMINAL AND SAID FIRST END, A JUNCTION POINT LOCATED IN SAID NEGATIVE LEAD BETWEEN SAID SCR AND SAID FIRST END, A CONDENSER CONNECTED ACROSS SAID PRIMARY WINDING BETWEEN SAID JUNCTION POINT AND SAID SECOND END, SAID SECOND END BEING CONNECTED TO SAID NEGATIVE TERMINAL ONLY THROUGH SAID CONDENSER AND SAID SCR, AND A TRIGGER DEVICE CONNECTED TO THE GATE OF SAID SCR WHEREBY A SERIES OF PULSES APPLIED BY SAID TRIGGER DEVICE TO SAID GATE WILL CAUSE A PULSATING CURRENT TO TRAVERSE SAID PRIMARY WINDING AND WILL INDUCE AN ALTERNATING CURRENT IN SAID SECONDARY WINDING.
Claim 2
Dependent Claim
163 words
AN INVERTER COMPRISING A TRANSFORMER HAVING A PRIMARY WINDING AND A SECONDARY WINDING, SAID PRIMARY WINDING HAVING A FIRST END, A SECONE END, AND AN INTERMEDIATE TAP, A POSITIVE D.C. LEAD CONNECTED TO SAID INTERMEDIATE TAP, A NEGATIVE D.C. LEAD CONNECTED TO SAID FIRST END, SAID POSITIVE AND NEGATIVE LEADS HAVING TERMINALS FOR CONNECTION TO A D.C. SOURCE, AN SCR INTERPOSED IN SAID NEGATIVE LEAD BETWEEN SAID NEGATIVE TERMINAL AND SAID FIRST END, A JUNCTION POINT LOCATED IN SAID NEGATIVE LEAD BETWEEN SAID SCR AND SAID FIRST END, A CONDENSER CONNECTED ACROSS SAID PRIMARY WINDING BETWEEN SAID JUNCTION POINT AND SAID SECOND END, SAID SECOND END BEING CONNECTED TO SAID NEGATIVE TERMINAL ONLY THROUGH SAID CONDENSER AND SAID SCR, AND A TRIGGER DEVICE CONNECTED TO THE GATE OF SAID SCR WHEREBY A SERIES OF PULSES APPLIED BY SAID TRIGGER DEVICE TO SAID GATE WILL CAUSE A PULSATING CURRENT TO TRAVERSE SAID PRIMARY WINDING AND WILL INDUCE AN ALTERNATING CURRENT IN SAID SECONDARY 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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |