Patent US3271646A successfully refreshed from Google Patents.
US3271646A
Expired / Lapsed
US
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Converter systems
Assignee: Individual
•
Filing: 1965-07-12
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Granted: 1966-09-06
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Expires: 1985-07-12
Abstract
No abstract record available.
Inventors
- 👤 Alexander J Lewus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:25
CPC Classifications
H; H02; H02K; H02K47/00; H02K47/18; H02K47/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A CONVERTER SYSTEM FOR ENERGIZING A PLURALITY OF THREE-PHASE MOTORS OR LIKE THREE-PHASE OPERATING LOADS, EACH HAVING THREE INPUT TERMINALS A, B AND C, FROM A SINGLE-PHASE POWER SUPPLY HAVING TWO OUTPUT TERMINALS, SAID CONVERTER SYSTEM COMPRISING: MEANS FOR CONNECTING A FIRST ONE OF SAID POWER SUPPLY OUTPUT TERMINALS TO TERMINAL A OF EACH OF SAID LOADS; MEANS FOR CONNECTING THE OTHER POWER SUPPLY OUTPUT TERMINAL TO TERMINAL B OF EACH OF SAID LOADS; A MAIN DE-PHASING CAPACITOR; MEANS FOR CONNECTING SAID MAIN CAPACITOR BETWEEN TERMINALS B AND C OF EACH OF SAID LOADS; A THREE-PHASE ROTARY TRANSFORMER HAVING TERMINALS A'',B'', AND C''; MEANS FOR CONNECTING SAID TRANSFORMER TERMINALS A'', B'' AND C'' TO THE TERMINALS A, B ANC C, RESPECTIVELY, OF EACH OF SAID OPERATING LOADS TO AFFORD A VARIABLE CURRENT-BALANCING INDUCTANCE HAVING A RELATIVELY HIGH REACTANCE-RESISTANCE RATIO CONNECTED IN PARALLEL WITH THE OPERATING LOADS;
Claim 2
Dependent Claim
146 words
A CONVERTER SYSTEM FOR ENERGIZING A PLURALITY OF THREE-PHASE MOTORS OR LIKE THREE-PHASE OPERATING LOADS, EACH HAVING THREE INPUT TERMINALS A, B AND C, FROM A SINGLE-PHASE POWER SUPPLY HAVING TWO OUTPUT TERMINALS, SAID CONVERTER SYSTEM COMPRISING: MEANS FOR CONNECTING A FIRST ONE OF SAID POWER SUPPLY OUTPUT TERMINALS TO TERMINAL A OF EACH OF SAID LOADS; MEANS FOR CONNECTING THE OTHER POWER SUPPLY OUTPUT TERMINAL TO TERMINAL B OF EACH OF SAID LOADS; A MAIN DE-PHASING CAPACITOR; MEANS FOR CONNECTING SAID MAIN CAPACITOR BETWEEN TERMINALS B AND C OF EACH OF SAID LOADS; A THREE-PHASE ROTARY TRANSFORMER HAVING TERMINALS A'',B'', AND C''; MEANS FOR CONNECTING SAID TRANSFORMER TERMINALS A'', B'' AND C'' TO THE TERMINALS A, B ANC C, RESPECTIVELY, OF EACH OF SAID OPERATING LOADS TO AFFORD A VARIABLE CURRENT-BALANCING INDUCTANCE HAVING A RELATIVELY HIGH REACTANCE-RESISTANCE RATIO CONNECTED IN PARALLEL WITH THE OPERATING LOADS;
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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |