US3423598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Peak demand current limiting control system
Assignee: General Electric Co
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Filing: 1966-08-29
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Granted: 1969-01-21
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Expires: 1986-08-29
Abstract
No abstract record available.
Inventors
- 👤 Leon J Goldberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:05
CPC Classifications
H; H02; H02J; H02J3/00; H02J3/12; H02J3/14; G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/40; G05F1/44; G05F1/445; H02J2105/00; H02J2105/50; H02J2105/52; Y; Y02; Y02B; Y02B70/00; Y02B70/30; Y02B70/3225; Y04; Y04S; Y04S20/00; Y04S20/20; Y04S20/222
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
195 words
A PEAK DEMAND CURRENT LIMITING CONTROL SYSTEM FOR A LOAD CIRCUIT COMPRISING A PLURALITY OF BRANCHES EACH CONNECTED ACROSS ALTERNATING CURRENT POWER SUPPLY LINES AND EACH HAVING A LOAD, AT LEAST ONE OF SAID LOADS BEING A PRIME LOAD WHICH RECEIVES FULL CURRENT AT PEAK DEMAND PERIODS WHILE ANOTHER OF SAID LOADS IS A DEFERRED LOAD WHICH RECEIVES LESS THAN FULL CURRENT AT PEAK DEMAND PERIODS, SAID CONTROL CIRCUIT COMPRISING MEANS FOR CONTINUOUSLY SENSING THE TOTAL CURRENT IN SAID LOAD CIRCUIT DUE TO ALL OF THE LOADS IN ALL OF THE CIRCUIT BRANCHES AND FOR GENERATING A CONTROL SIGNAL THAT IS A FUNCTION OF THE TOTAL CURRENT, CONTROL CIRCUIT MEANS CONNECTED IN SERIES WITH THE DEFERRED LOAD IN ONE OF THE CIRCUIT BRANCHES FOR SUPPLYING A VARIABLE AMOUNT OF CURRENT TO THE DEFERRED LOAD, AND MEANS FOR APPLYING SAID CONTROL SIGNAL TO SAID CONTROL CIRCUIT MEANS TO VARY CONTINUOUSLY THE AMOUNT OF CURRENT SUPPLIED TO THE DEFERRED LOAD IN INVERSE RELATION TO THE MAGNITUDE OF THE CONTROL SIGNAL WHEN A CRITICAL VALUE OF THE TOTAL CURRENT IS EXCEEDED, WHEREBY THE TOTAL CURRENT IN THE LOAD CIRCUIT AT PEAK DEMAND PERIODS NEVER EXCEEDS A PREDETERMINED MAXIMUM.
Claim 2
Dependent Claim
195 words
A PEAK DEMAND CURRENT LIMITING CONTROL SYSTEM FOR A LOAD CIRCUIT COMPRISING A PLURALITY OF BRANCHES EACH CONNECTED ACROSS ALTERNATING CURRENT POWER SUPPLY LINES AND EACH HAVING A LOAD, AT LEAST ONE OF SAID LOADS BEING A PRIME LOAD WHICH RECEIVES FULL CURRENT AT PEAK DEMAND PERIODS WHILE ANOTHER OF SAID LOADS IS A DEFERRED LOAD WHICH RECEIVES LESS THAN FULL CURRENT AT PEAK DEMAND PERIODS, SAID CONTROL CIRCUIT COMPRISING MEANS FOR CONTINUOUSLY SENSING THE TOTAL CURRENT IN SAID LOAD CIRCUIT DUE TO ALL OF THE LOADS IN ALL OF THE CIRCUIT BRANCHES AND FOR GENERATING A CONTROL SIGNAL THAT IS A FUNCTION OF THE TOTAL CURRENT, CONTROL CIRCUIT MEANS CONNECTED IN SERIES WITH THE DEFERRED LOAD IN ONE OF THE CIRCUIT BRANCHES FOR SUPPLYING A VARIABLE AMOUNT OF CURRENT TO THE DEFERRED LOAD, AND MEANS FOR APPLYING SAID CONTROL SIGNAL TO SAID CONTROL CIRCUIT MEANS TO VARY CONTINUOUSLY THE AMOUNT OF CURRENT SUPPLIED TO THE DEFERRED LOAD IN INVERSE RELATION TO THE MAGNITUDE OF THE CONTROL SIGNAL WHEN A CRITICAL VALUE OF THE TOTAL CURRENT IS EXCEEDED, WHEREBY THE TOTAL CURRENT IN THE LOAD CIRCUIT AT PEAK DEMAND PERIODS NEVER EXCEEDS A PREDETERMINED MAXIMUM.
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) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |