US3334341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit for monitoring a variable electrical quantity
Assignee: General Electric Co
•
Filing: 1964-02-17
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Granted: 1967-08-01
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Expires: 1984-02-17
Abstract
No abstract record available.
Inventors
- 👤 Frank W Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:50
CPC Classifications
H; H02; H02H; H02H3/00; H02H3/12; B; B23; B23K; B23K11/00; B23K11/24; B23K11/248
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
A DEVICE FOR MONITORING A VARIABLE ELECTRICAL QUANTITY COMPRISING, AN INDICATING LAMP, A RELAY HAVING A COIL FOR CONTROLLING ENERGIZATION OF SAID LAMP, MEANS FOR CONTROLLING ENERGIZATION OF SAID RELAY COIL INCLUDING A SWITCH EFFECTIVE WHEN CLOSED FOR ENERGIZING SAID RELAY COIL TO LIGHT SAID LAMP, A BREAKDOWN DEVICE HAVING TWO MAIN TERMINALS WHICH IS RENDERED CONDUCTING BETWEEN SAID MAIN TERMINALS WHEN VOLTAGE APPLIED TO SAID MAIN TERMINALS EXCEEDS ITS BEAKDOWN VOLTAGE AND WHICH IS NONCONDUCTING WHEN VOLTAGE APPLIED TO SAID MAIN TERMINALS IS LESS THAN ITS BREAKDOWN VOLTAGE, AND CIRCUIT MEANS CONNECTED TO DIVERT CURRENT AWAY FROM SAID RELAY COIL THROUGH SAID BREAKDOWN DEVICE IN RESPONSE TO BREAKDOWN THEREOF FOR DEENERGIZING SAID RELAY COIL AND EXTINGUISHING SAID LAMP; MEANS CONNECTED TO APPLY TO SAID MAIN TERMINALS A PREDETERMINED VOLTAGE HAVING A MAGNITUDE LESS THAN SAID BREAKDOWN VOLTAGE, AND MEANS RESPONSIVE TO THE QUANTITY TO BE MONITORED FOR APPLYING TO SAID MAIN TERMINALS IN CUMULATIVE RELATION TO SAID PREDETERMINED VOLTAGE A SECOND VOLTAGE WHICH IS A FUNCTION OF THE VARIABLE QUANTITY.
Claim 2
Independent Claim
171 words
A DEVICE FOR MONITORING A VARIABLE ELECTRICAL QUANTITY COMPRISING, AN INDICATING LAMP, A RELAY HAVING A COIL FOR CONTROLLING ENERGIZATION OF SAID LAMP, MEANS FOR CONTROLLING ENERGIZATION OF SAID RELAY COIL INCLUDING A SWITCH EFFECTIVE WHEN CLOSED FOR ENERGIZING SAID RELAY COIL TO LIGHT SAID LAMP, A BREAKDOWN DEVICE HAVING TWO MAIN TERMINALS WHICH IS RENDERED CONDUCTING BETWEEN SAID MAIN TERMINALS WHEN VOLTAGE APPLIED TO SAID MAIN TERMINALS EXCEEDS ITS BEAKDOWN VOLTAGE AND WHICH IS NONCONDUCTING WHEN VOLTAGE APPLIED TO SAID MAIN TERMINALS IS LESS THAN ITS BREAKDOWN VOLTAGE, AND CIRCUIT MEANS CONNECTED TO DIVERT CURRENT AWAY FROM SAID RELAY COIL THROUGH SAID BREAKDOWN DEVICE IN RESPONSE TO BREAKDOWN THEREOF FOR DEENERGIZING SAID RELAY COIL AND EXTINGUISHING SAID LAMP; MEANS CONNECTED TO APPLY TO SAID MAIN TERMINALS A PREDETERMINED VOLTAGE HAVING A MAGNITUDE LESS THAN SAID BREAKDOWN VOLTAGE, AND MEANS RESPONSIVE TO THE QUANTITY TO BE MONITORED FOR APPLYING TO SAID MAIN TERMINALS IN CUMULATIVE RELATION TO SAID PREDETERMINED VOLTAGE A SECOND VOLTAGE WHICH IS A FUNCTION OF THE VARIABLE QUANTITY.
References Cited (Backward Citations)
US1547693A
Cited
US2343001A
Cited
US2536527A
Cited
US2748380A
Cited
US3058034A
Cited
US3050644A
Cited
US3207922A
Cited
US3230459A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |