US3213349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective control circuits
Assignee: General Electric Co
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Filing: 1962-04-18
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Granted: 1965-10-19
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Expires: 1982-04-18
Abstract
No abstract record available.
Inventors
- 👤 Frank W Gutzwiller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:19
CPC Classifications
H; H02; H02H; H02H9/00; H02H9/04; H02H9/041; H02M; H02M7/00; H02M7/02; H02M7/04; H02M7/06; H02M7/062
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
AN ARRANGEMENT FOR PROTECTION CONTROL ELEMENTS IN A SYSTEM AGAINST HARMFUL VOLTAGE SURGES COMPRISING AT LEAST ONE CONTROL DEVICE ADAPTED FOR CONNECTION TO A SOURCE OF VOLTAGE SUPPLY AND HAVING A LOAD CONNECTED ACROSS ITS OUTPUT TERMINALS SO THAT DURING OPERATION OF THE SYSTEM, FIRST VOLTAGES HAVING A PREDETERMINED MAXIMUM MAGNITUDE ARE SUPPLIED TO THE LOAD, A NON-GASEOUS SEMICONDUCTOR DEVICE CONNECTED ACROSS THE CONTROL DEVICE TERMINALS AND THE LOAD, AND RESPONSIVE MEANS IN CIRCUIT WITH SAID SEMICONDUCTOR DEVICE AND THE LOAD, SAID RESPONSIVE MEANS BEING SENSITIVE TO SEOCND VOLTAGES OF A PREDETERMINED MAXIMUM AND GREATER THAN SAID FIRST VOLTAGES FOR CAUSING THE SEMICONDUCTOR DEVICE TO CONDUCT AND LIMIT THE LEVEL OF SAID SECOND VOLTAGES TO A PREDETERMINED VALUE.
Claim 2
Dependent Claim
118 words
AN ARRANGEMENT FOR PROTECTION CONTROL ELEMENTS IN A SYSTEM AGAINST HARMFUL VOLTAGE SURGES COMPRISING AT LEAST ONE CONTROL DEVICE ADAPTED FOR CONNECTION TO A SOURCE OF VOLTAGE SUPPLY AND HAVING A LOAD CONNECTED ACROSS ITS OUTPUT TERMINALS SO THAT DURING OPERATION OF THE SYSTEM, FIRST VOLTAGES HAVING A PREDETERMINED MAXIMUM MAGNITUDE ARE SUPPLIED TO THE LOAD, A NON-GASEOUS SEMICONDUCTOR DEVICE CONNECTED ACROSS THE CONTROL DEVICE TERMINALS AND THE LOAD, AND RESPONSIVE MEANS IN CIRCUIT WITH SAID SEMICONDUCTOR DEVICE AND THE LOAD, SAID RESPONSIVE MEANS BEING SENSITIVE TO SEOCND VOLTAGES OF A PREDETERMINED MAXIMUM AND GREATER THAN SAID FIRST VOLTAGES FOR CAUSING THE SEMICONDUCTOR DEVICE TO CONDUCT AND LIMIT THE LEVEL OF SAID SECOND VOLTAGES TO A PREDETERMINED VALUE.
References Cited (Backward Citations)
US2942123A
Cited
US3040237A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |