US3247439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Energy supply circuit
Assignee: Duo Fast Corp
•
Filing: 1961-12-22
•
Granted: 1966-04-19
•
Expires: 1981-12-22
Abstract
No abstract record available.
Inventors
- 👤 Richard H Doyle
- 👤 Joseph S Naber
- 👤 Le Roy N Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:01
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/24; B23K11/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
A CIRCUIT FOR SUPPLYING ENERGY TO A LOAD COMPRISING A POTENTIAL SOURCE, A NORMALLY DISCHARGED CAPACITIVE MEANS CONNECTED TO SAID LOAD FOR SUPPLYING ENERGY TO SAID LOAD, FIRST CONTROLLED CONDUCTION MEANS HAVING A CONTROL ELECTRODE, FIRST CIRCUIT MEANS INCLUDING SAID FIRST CONTROLLED CONDUCTION MEANS FOR RENDERING SAID POTENTIAL SOURCE EFFECTIVE TO CHARGE SAID CAPACITIVE MEANS, SECOND CIRCUIT MEANS INCLUDING SWITCHING MEANS FOR CONNECTING SAID POTENTIAL SOURCE TO SAID CONTROL ELECTRODE TO PLACE SAID FIRST CONTROLLED CONDUCTION DEVICE IN A CONDUCTIVE CONDITION TO INITIATE THE CHARGING OF SAID CAPACITIVE MEANS, A SECOND CONTROLLED CONDUCTION MEANS CONNECTED TO SAID POTENTIAL SOURCE BY SAID SWITCHING MEANS, AND THIRD CIRCUIT MEANS INCLUDING SAID SECOND CONTROLLED CONDUCTION MEANS FOR HOLDING SAID FIRST CONTROLLED CONDUCTION MEANS IN A NONCONDUCTIVE STATE, SAID THIRD CIRCUIT MEANS INCLUDING MEANS RESPONSIVE TO THE DISCHARGE OF ENERGY FROM THE CAPACITIVE MEANS TO THE LOAD FOR PLACING THE SECOND CONTROLLED CONDUCTION MEANS IN A CONDUCTIVE CONDITION.
Claim 2
Dependent Claim
154 words
A CIRCUIT FOR SUPPLYING ENERGY TO A LOAD COMPRISING A POTENTIAL SOURCE, A NORMALLY DISCHARGED CAPACITIVE MEANS CONNECTED TO SAID LOAD FOR SUPPLYING ENERGY TO SAID LOAD, FIRST CONTROLLED CONDUCTION MEANS HAVING A CONTROL ELECTRODE, FIRST CIRCUIT MEANS INCLUDING SAID FIRST CONTROLLED CONDUCTION MEANS FOR RENDERING SAID POTENTIAL SOURCE EFFECTIVE TO CHARGE SAID CAPACITIVE MEANS, SECOND CIRCUIT MEANS INCLUDING SWITCHING MEANS FOR CONNECTING SAID POTENTIAL SOURCE TO SAID CONTROL ELECTRODE TO PLACE SAID FIRST CONTROLLED CONDUCTION DEVICE IN A CONDUCTIVE CONDITION TO INITIATE THE CHARGING OF SAID CAPACITIVE MEANS, A SECOND CONTROLLED CONDUCTION MEANS CONNECTED TO SAID POTENTIAL SOURCE BY SAID SWITCHING MEANS, AND THIRD CIRCUIT MEANS INCLUDING SAID SECOND CONTROLLED CONDUCTION MEANS FOR HOLDING SAID FIRST CONTROLLED CONDUCTION MEANS IN A NONCONDUCTIVE STATE, SAID THIRD CIRCUIT MEANS INCLUDING MEANS RESPONSIVE TO THE DISCHARGE OF ENERGY FROM THE CAPACITIVE MEANS TO THE LOAD FOR PLACING THE SECOND CONTROLLED CONDUCTION MEANS IN A CONDUCTIVE CONDITION.
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) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |