Patent US3200392A successfully refreshed from Google Patents.
US3200392A
Expired / Lapsed
US
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Counting circuit for counting cell railures in a rectifier system
Assignee: ABB Inc USA
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Filing: 1960-12-02
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Granted: 1965-08-10
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Expires: 1980-12-02
Abstract
No abstract record available.
Inventors
- 👤 Walter V Chumakov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:31
CPC Classifications
H; H02; H02H; H02H7/00; H02H7/10; H02H7/12; H02H7/1203; H02H7/1206
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
IN A SYSTEM HAVING A PLURALITY OF INTERCONNECTED RECTIFIER ELEMENTS FOR EXCHANGING ENERGY BETWEEN AN A.-C. SYSTEM AND A D.-C. SYSTEM; A COUNTING CIRCUIT FOR COUNTING THE NUMBER OF RECTIFIER ELEMENTS THAT FAIL; SAID COUNTING CIRCUIT COMPRISING FIRST MEANS FOR GENERATING A VOLTAGE PULSE RESPONSIVE TO FAILURE OF ANY OF SAID RECTIFIER ELEMENTS, A PULSE TYPE RELAY, AND A STEPPING RELAY AND AN INDICATING MEANS; SAID FIRST MEANS BEING OPERATIVELY CONNECTED TO OPERATE SAID PULSE TYPE RELAY RESPONSIVE TO THE GENERATION OF A VOLTAGE PULSE; SAID PULSE TYPE RELAY BEING OPERATIVELY CONNECTED TO SAID STEPPING RELAY TO ADVANCE SAID STEPPING RELAY ONE POSITION FOR EACH OPERATION OF SAID PULSE TYPE RELAY, SAID STEPPING RELAY BEING OPERATIVELY CONNECTED TO SAID INDICATING MEANS TO PRESENT A COUNT OF THE NUMBER OF PULSES GENERATED BY SAID VOLTAGE GENERATING MEANS.
Claim 2
Dependent Claim
136 words
IN A SYSTEM HAVING A PLURALITY OF INTERCONNECTED RECTIFIER ELEMENTS FOR EXCHANGING ENERGY BETWEEN AN A.-C. SYSTEM AND A D.-C. SYSTEM; A COUNTING CIRCUIT FOR COUNTING THE NUMBER OF RECTIFIER ELEMENTS THAT FAIL; SAID COUNTING CIRCUIT COMPRISING FIRST MEANS FOR GENERATING A VOLTAGE PULSE RESPONSIVE TO FAILURE OF ANY OF SAID RECTIFIER ELEMENTS, A PULSE TYPE RELAY, AND A STEPPING RELAY AND AN INDICATING MEANS; SAID FIRST MEANS BEING OPERATIVELY CONNECTED TO OPERATE SAID PULSE TYPE RELAY RESPONSIVE TO THE GENERATION OF A VOLTAGE PULSE; SAID PULSE TYPE RELAY BEING OPERATIVELY CONNECTED TO SAID STEPPING RELAY TO ADVANCE SAID STEPPING RELAY ONE POSITION FOR EACH OPERATION OF SAID PULSE TYPE RELAY, SAID STEPPING RELAY BEING OPERATIVELY CONNECTED TO SAID INDICATING MEANS TO PRESENT A COUNT OF THE NUMBER OF PULSES GENERATED BY SAID VOLTAGE GENERATING MEANS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |