US3146358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abnormal voltage detection circuits
Assignee: AMF Inc
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Filing: 1962-07-03
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Granted: 1964-08-25
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Expires: 1982-07-03
Abstract
No abstract record available.
Inventors
- 👤 Aloysius W Pratt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:04
CPC Classifications
H; H02; H02H; H02H3/00; H02H3/24; H02H3/247
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A SYSTEM FOR ACTUATING A CONTROL DEVICE IN RESPONSE TO AN ABNORMAL INPUT VOLTAGE COMPRISING: FIRST COMPRISON MEANS, SAID MEANS ADAPTED TO COMPARE THE INPUT VOLTAGE WITH A REFERENCE VOLTAGE AND TO PROVIDE AN OUTPUT SIGNAL WHEN THEIR DIFFERENCE EXCEEDS A PREDETERMINED VALUE; VOLTAGE-VARYING MEANS CONNECTED TO SAID FIRST COMPARISON MEANS, HAVING AN OUTPUT NORMALLY MAINTAINED AT A FIXED VOLTAGE WITH RESPECT TO SAID REFERENCE VOLTAGE, AND ADAPTED TO DECREASE THE VOLTAGE DIFFERENCE BETWEEN SAID OUTPUT AND SAID REFERENCE VOLTAGE AS A FUNCTION OF A TIME DURING THE EXISTENCE OF AN OUTPUT SIGNAL FROM SAID FIRST COMPARISON MEANS; AND SECOND COMPARISON MEANS CONNECTED TO SAID OUTPUT OF SAID VOLTAGE-VARYING MEANS AND ADAPTED TO COMPARE THE VOLTAGE THEREON WITH SAID INPUT VOLTAGE, AND ADAPTED TO SUPPLY AN ACTUATING SIGNAL WHEN THE DIFFERENCE BETWEEN THE VOLTAGE ON SAID OUTPUT OF SAID VOLTAGE-VARYING MEANS AND SAID INPUT VOLTAGE EXCEEDS A PREDETERMINED VALUE.
Claim 2
Independent Claim
149 words
A SYSTEM FOR ACTUATING A CONTROL DEVICE IN RESPONSE TO AN ABNORMAL INPUT VOLTAGE COMPRISING: FIRST COMPRISON MEANS, SAID MEANS ADAPTED TO COMPARE THE INPUT VOLTAGE WITH A REFERENCE VOLTAGE AND TO PROVIDE AN OUTPUT SIGNAL WHEN THEIR DIFFERENCE EXCEEDS A PREDETERMINED VALUE; VOLTAGE-VARYING MEANS CONNECTED TO SAID FIRST COMPARISON MEANS, HAVING AN OUTPUT NORMALLY MAINTAINED AT A FIXED VOLTAGE WITH RESPECT TO SAID REFERENCE VOLTAGE, AND ADAPTED TO DECREASE THE VOLTAGE DIFFERENCE BETWEEN SAID OUTPUT AND SAID REFERENCE VOLTAGE AS A FUNCTION OF A TIME DURING THE EXISTENCE OF AN OUTPUT SIGNAL FROM SAID FIRST COMPARISON MEANS; AND SECOND COMPARISON MEANS CONNECTED TO SAID OUTPUT OF SAID VOLTAGE-VARYING MEANS AND ADAPTED TO COMPARE THE VOLTAGE THEREON WITH SAID INPUT VOLTAGE, AND ADAPTED TO SUPPLY AN ACTUATING SIGNAL WHEN THE DIFFERENCE BETWEEN THE VOLTAGE ON SAID OUTPUT OF SAID VOLTAGE-VARYING MEANS AND SAID INPUT VOLTAGE EXCEEDS A PREDETERMINED VALUE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |