US3176223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unidirectional current measuring circuit using a controlled firing relaxation oscillator
Assignee: General Electric Co
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Filing: 1961-03-30
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Granted: 1965-03-30
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Expires: 1981-03-30
Abstract
No abstract record available.
Inventors
- 👤 Edmund E Goodale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:30
CPC Classifications
G; G01; G01R; G01R19/00; G01R19/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A CIRCUIT FOR MEASURING AN ELECTRIC CURRENT COMPRISING A CAPACITANCE, A SERIES CIRCUIT COMPRISING A GASEOUS DISCHARGE TUBE AND A RESISTANCE CONNECTED IN PARALLEL WITH SAID CAPACITANCE, A PERIODIC VOLTAGE SOURCE CONNECTED IN PARALLEL WITH SAID SERIES CIRCUIT, SAID PERIODIC VOLTAGE SOURCE PROVIDING A PERIODIC VOLTAGE ACROSS SAID DISCHARGE TUBE, SAID PERIODIC VOLTAGE HAVING AN AMPLITUDE WHICH IS SMALL RELATIVE TO THE FIRING POTENTIAL OF SAID GASEOUS DISCHARGE TUBE AND A FREQUENCY HIGHER THAN THE FIRING FREQUENCY OF SAID GASEOUS DISCHARGE TUBE, MEANS FOR SUPPLY A CURRENT TO BE MEASURED ACROSS SAID SERIES CIRCUIT, AND MEANS FOR MEASURING THE FREQUENCY OF OUTPUT PULSES APPEARING ACROSS SAID RESISTANCE.
Claim 2
Dependent Claim
107 words
A CIRCUIT FOR MEASURING AN ELECTRIC CURRENT COMPRISING A CAPACITANCE, A SERIES CIRCUIT COMPRISING A GASEOUS DISCHARGE TUBE AND A RESISTANCE CONNECTED IN PARALLEL WITH SAID CAPACITANCE, A PERIODIC VOLTAGE SOURCE CONNECTED IN PARALLEL WITH SAID SERIES CIRCUIT, SAID PERIODIC VOLTAGE SOURCE PROVIDING A PERIODIC VOLTAGE ACROSS SAID DISCHARGE TUBE, SAID PERIODIC VOLTAGE HAVING AN AMPLITUDE WHICH IS SMALL RELATIVE TO THE FIRING POTENTIAL OF SAID GASEOUS DISCHARGE TUBE AND A FREQUENCY HIGHER THAN THE FIRING FREQUENCY OF SAID GASEOUS DISCHARGE TUBE, MEANS FOR SUPPLY A CURRENT TO BE MEASURED ACROSS SAID SERIES CIRCUIT, AND MEANS FOR MEASURING THE FREQUENCY OF OUTPUT PULSES APPEARING ACROSS SAID RESISTANCE.
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) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |