US3296557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hybrid network utilizing plural twowinding transformers and resistive balancing means
Assignee: Westinghouse Electric Corp
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Filing: 1963-12-09
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Granted: 1967-01-03
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Expires: 1983-12-09
Abstract
No abstract record available.
Inventors
- 👤 George E Petts
- 👤 Heber J Morrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:49
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
A TRANSFORMER HYBRID NETWORK PROVIDING N OUTPUTS COMPRISING IN COMBINATION; AN N NUMBER OF TRANSFORMERS EACH INCLUDING A PRIMARY AND A SECONDARY WINDING OF PREDETERMINED TURNS RATIO DISPOSED ON ITS OWN CORE; AN N NUMBER OF LOADS, EACH LOAD COUPLED ACROSS A RESPECTIVE SECONDARY WINDING OF SAID PLURALITY OF TRANSFORMERS; MEANS FOR RETURNING ONE TERMINAL OF SAID SECONDARY WINDING TO A POINT OF REFERENCE POTENTIAL; A BALANCING NETWORK COMPRISING AN N POLE STAR NETWORK OF RESISTORS COUPLED TOGETHER AT A COMMON TERMINAL WITH THE OTHER TERMINAL OF EACH RESISTOR COUPLED TO A RESPECTIVE LOAD OF SAID N NUMBER OF LOADS; CIRCUIT MEANS FOR CONNECTING EACH SAID PRIMARY WINDING OF SAID PLURALITY OF TRANSFORMERS TOGETHER IN SERIES CIRCUIT RELATIONSHIP; A SOURCE OF ELECTRIAL POWER HAVING AN INTERNAL SOURCE IMPEDANCE SUBSTANTIALLY EQUAL TO THE PRODUCT OF SAID LOAD IMPEDANCE TIMES THE NUMBER OF SAID PRIMARY WINDINGS CONNECTED IN SERIES TIMES THE SQUARE OF SAID TURNS RATIO OF SAID TRANSFORMERS; MEANS FOR COUPLING SAID SERIES CIRCUIT RELATIONSHIP ACROSS SAID SOURCE OF ELECTRICAL POWER; AND CIRCUIT MEANS FOR RETURNING ONE SIDE OF SAID SOURCE OF ELECTRICAL POWER TO THE POINT OF REFERENCE POTENTIAL.
Claim 2
Dependent Claim
189 words
A TRANSFORMER HYBRID NETWORK PROVIDING N OUTPUTS COMPRISING IN COMBINATION; AN N NUMBER OF TRANSFORMERS EACH INCLUDING A PRIMARY AND A SECONDARY WINDING OF PREDETERMINED TURNS RATIO DISPOSED ON ITS OWN CORE; AN N NUMBER OF LOADS, EACH LOAD COUPLED ACROSS A RESPECTIVE SECONDARY WINDING OF SAID PLURALITY OF TRANSFORMERS; MEANS FOR RETURNING ONE TERMINAL OF SAID SECONDARY WINDING TO A POINT OF REFERENCE POTENTIAL; A BALANCING NETWORK COMPRISING AN N POLE STAR NETWORK OF RESISTORS COUPLED TOGETHER AT A COMMON TERMINAL WITH THE OTHER TERMINAL OF EACH RESISTOR COUPLED TO A RESPECTIVE LOAD OF SAID N NUMBER OF LOADS; CIRCUIT MEANS FOR CONNECTING EACH SAID PRIMARY WINDING OF SAID PLURALITY OF TRANSFORMERS TOGETHER IN SERIES CIRCUIT RELATIONSHIP; A SOURCE OF ELECTRIAL POWER HAVING AN INTERNAL SOURCE IMPEDANCE SUBSTANTIALLY EQUAL TO THE PRODUCT OF SAID LOAD IMPEDANCE TIMES THE NUMBER OF SAID PRIMARY WINDINGS CONNECTED IN SERIES TIMES THE SQUARE OF SAID TURNS RATIO OF SAID TRANSFORMERS; MEANS FOR COUPLING SAID SERIES CIRCUIT RELATIONSHIP ACROSS SAID SOURCE OF ELECTRICAL POWER; AND CIRCUIT MEANS FOR RETURNING ONE SIDE OF SAID SOURCE OF ELECTRICAL POWER TO THE POINT OF REFERENCE POTENTIAL.
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) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |