Patent US3143698A successfully refreshed from Google Patents.
US3143698A
Expired / Lapsed
US
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Pulse generating from a single-phase or multiple-phase a. c. source
Assignee: Robotron Corp
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Filing: 1962-11-30
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Granted: 1964-08-04
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Expires: 1982-11-30
Abstract
No abstract record available.
Inventors
- 👤 Laura M Rockafellow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:52
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/24; B23K11/248
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A CIRCUIT FOR SUPPLYING ELECTRICAL PULSES TO A LOAD COMPRISING THE COMBINATION: A PAIR OF SOURCE TERMINALS AND FIRST CONDUCTIVE MEANS FOR CONNECTING SAME TO A SOURCE OF REGULARLY REVERSING POTENTIAL; A SWITCH; A SWITCH ACTUATOR FOR CONTROLLING SAID SWITCH AND OPERABLE TO CLOSE SAME IN DESIRED RELATIONSHIP TO REVERSALS IN POLARITY OF SAID SOURCE, THE SWITCH BEING OPENED WHEN CURRENT THROUGH SAID SWITCH REACHES A PREDETERMINED MINIMUM LEVEL; CAPACITIVE AND INDUCTIVE ENERGY STORAGE DEVICES AND A RESISTIVE DEVICE, AT LEAST ONE THEREOF CONSTITUTING SAID LOAD, AND SECOND CONDUCTIVE MEANS FOR CONNECTING SAID ENERGY STORAGE AND RESISTIVE DEVICES IN SERIES WITH EACH OTHER AND WITH SAID SWITCH AND SAID SOURCE TERMINALS; THE PARAMETERS OF SAID CIRCUIT CONFORMING SUBSTANTIALLY TO THE FORMULA:
Claim 2
Dependent Claim
121 words
A CIRCUIT FOR SUPPLYING ELECTRICAL PULSES TO A LOAD COMPRISING THE COMBINATION: A PAIR OF SOURCE TERMINALS AND FIRST CONDUCTIVE MEANS FOR CONNECTING SAME TO A SOURCE OF REGULARLY REVERSING POTENTIAL; A SWITCH; A SWITCH ACTUATOR FOR CONTROLLING SAID SWITCH AND OPERABLE TO CLOSE SAME IN DESIRED RELATIONSHIP TO REVERSALS IN POLARITY OF SAID SOURCE, THE SWITCH BEING OPENED WHEN CURRENT THROUGH SAID SWITCH REACHES A PREDETERMINED MINIMUM LEVEL; CAPACITIVE AND INDUCTIVE ENERGY STORAGE DEVICES AND A RESISTIVE DEVICE, AT LEAST ONE THEREOF CONSTITUTING SAID LOAD, AND SECOND CONDUCTIVE MEANS FOR CONNECTING SAID ENERGY STORAGE AND RESISTIVE DEVICES IN SERIES WITH EACH OTHER AND WITH SAID SWITCH AND SAID SOURCE TERMINALS; THE PARAMETERS OF SAID CIRCUIT CONFORMING SUBSTANTIALLY TO THE FORMULA:
References Cited (Backward Citations)
US1281454A
Cited
US2040969A
Cited
US2389351A
Cited
US2440309A
Cited
US2585772A
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US2739281A
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US2681428A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |