US3226641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic type converter for producting a d.c. signal proportional to watt input
Assignee: General Electric Co
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Filing: 1961-12-05
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Granted: 1965-12-28
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Expires: 1981-12-05
Abstract
No abstract record available.
Inventors
- 👤 Meritt L Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:41
CPC Classifications
G; G01; G01R; G01R21/00; G01R21/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
193 words
A WATTAGE CONVERTER COMPRISING A CURRENT TRANSFORMER MEANS ADAPTED FOR MONITORING THE CURRENT OF AN ALTERNATING POWER SUPPLY AND CONVERTING THE CURRENT TO A FIRST ELECTRICAL SIGNAL PROPORTIONAL IN MAGINTUDE TO SAID CURRENT; A POTENTIAL TRANSFORMER MEANS ADAPTED FOR MONITORING THE VOLTAGE OF THE POWER SUPPLY AND CONVERTING THE VOLTAGE TO A SECOND ELECTRICAL SIGNAL PROPORTIONAL THERETO; A MULTIPLYING CIRCUIT INCLUDING A FIRST INPUT, A SECOND INPUT AND AT LEAST ONE OUTPUT LEAD, SAID FIRST ELECTRICAL SIGNAL BEING COUPLED TO THE FIRST INPUT OF SAID MULTIPLYING CIRCUIT AND SAID SECOND ELECTRICAL SIGNAL BEING COUPLED TO THE SECOND INPUT OF SAID MULTIPLYING CIRCUIT, A FIRST AND A SECOND OPERATIONAL AMPLIFIER, MEANS COUPLING SAID FIRST AND SECOND INPUTS WITH SAID FIRST OPERATIONAL AMPLIFIER TO PROVIDE A SIGNAL PROPORTIONAL TO THE SUM OF THE INSTANTANEOUS VALUES OF THE FIRST AND SECOND ELECTRICAL SIGNALS, MEANS INCLUDING RESISTORS COUPLING THE OUTPUT OF SAID FIRST OPERATIONAL AMPLIFIER AND SAID FIRST INPUT WITH THE INPUT OF SAID SECOND OPERATIONAL AMPLIFIER TO PROVIDE AN OUTPUT SIGNAL AT SAID SECOND OPERATIONAL AMPLIFIER PROPORTIONAL TO THE DIFFERENCE BETWEEN SAID FIRST AND SECOND ELECTRICAL SIGNALS, SAID MULTIPLYING CIRCUIT INCLUDING A FIRST, SECOND, THIRD AND
Claim 2
Dependent Claim
193 words
A WATTAGE CONVERTER COMPRISING A CURRENT TRANSFORMER MEANS ADAPTED FOR MONITORING THE CURRENT OF AN ALTERNATING POWER SUPPLY AND CONVERTING THE CURRENT TO A FIRST ELECTRICAL SIGNAL PROPORTIONAL IN MAGINTUDE TO SAID CURRENT; A POTENTIAL TRANSFORMER MEANS ADAPTED FOR MONITORING THE VOLTAGE OF THE POWER SUPPLY AND CONVERTING THE VOLTAGE TO A SECOND ELECTRICAL SIGNAL PROPORTIONAL THERETO; A MULTIPLYING CIRCUIT INCLUDING A FIRST INPUT, A SECOND INPUT AND AT LEAST ONE OUTPUT LEAD, SAID FIRST ELECTRICAL SIGNAL BEING COUPLED TO THE FIRST INPUT OF SAID MULTIPLYING CIRCUIT AND SAID SECOND ELECTRICAL SIGNAL BEING COUPLED TO THE SECOND INPUT OF SAID MULTIPLYING CIRCUIT, A FIRST AND A SECOND OPERATIONAL AMPLIFIER, MEANS COUPLING SAID FIRST AND SECOND INPUTS WITH SAID FIRST OPERATIONAL AMPLIFIER TO PROVIDE A SIGNAL PROPORTIONAL TO THE SUM OF THE INSTANTANEOUS VALUES OF THE FIRST AND SECOND ELECTRICAL SIGNALS, MEANS INCLUDING RESISTORS COUPLING THE OUTPUT OF SAID FIRST OPERATIONAL AMPLIFIER AND SAID FIRST INPUT WITH THE INPUT OF SAID SECOND OPERATIONAL AMPLIFIER TO PROVIDE AN OUTPUT SIGNAL AT SAID SECOND OPERATIONAL AMPLIFIER PROPORTIONAL TO THE DIFFERENCE BETWEEN SAID FIRST AND SECOND ELECTRICAL SIGNALS, SAID MULTIPLYING CIRCUIT INCLUDING A FIRST, SECOND, THIRD AND
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) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |