US3343038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phase loss detector and circuit controlled thereby
Assignee: Westinghouse Electric Corp
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Filing: 1965-02-26
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Granted: 1967-09-19
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Expires: 1985-02-26
Abstract
No abstract record available.
Inventors
- 👤 Frederick O Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:12
CPC Classifications
H; H02; H02H; H02H7/00; H02H7/10; H02H7/12; H02H7/125; H02H7/1255; H02H3/00; H02H3/24; H02H3/253; H02H3/26; H02H3/32; H02H3/34; H02H7/08; H02H7/0833
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
IN AN N-PHASE SYSTEM WHEREIN N IS A PLURAL WHOLE NUMBER, N LINES FOR CONVEYING N PHASE POWER FROM AN N-PHASE SOURCE TO A LOAD, TRANSFORMER MEANS HAVING N PRIMARY WINDINGS ONE FOR EACH OF SAID LINES, N PRIMARY CIRCUITS EACH CONNECTED IN SERIES WITH A DIFFERENT ONE OF SAID LINES, EACH PRIMARY CIRCUIT INCLUDING A DIFFERENT ONE OF SAID PRIMARY WINDINGS AND A HALF-WAVE RECTIFIER IN SERIES WITH THAT WINDING, SAID TRANSFORMER MEANS HAVING SECONDARY WINDING MEANS, RECTIFIER MEANS, AND LOAD MEANS COUPLED TO SAID SECONDARY WINDING MEANS THROUGH SAID RECTIFIER MEANS, SAID RECTIFIER MEANS HAVING A THRESHOLD VOLTAGE VALUE WHICH IS BELOW THE OUTPUT VOLTAGE OF THE SECONDARY WINDING MEANS WHEN SAID LINES ARE FULLPHASING, AND WHICH THRESHOLD VOLTAGE VALUE IS ABOVE THE OUTPUT VOLTAGE OF THE SECONDARY WINDINGS MEANS WHEN SAID LINES ARE LESS THAN FULL-PHASING.
Claim 2
Dependent Claim
139 words
IN AN N-PHASE SYSTEM WHEREIN N IS A PLURAL WHOLE NUMBER, N LINES FOR CONVEYING N PHASE POWER FROM AN N-PHASE SOURCE TO A LOAD, TRANSFORMER MEANS HAVING N PRIMARY WINDINGS ONE FOR EACH OF SAID LINES, N PRIMARY CIRCUITS EACH CONNECTED IN SERIES WITH A DIFFERENT ONE OF SAID LINES, EACH PRIMARY CIRCUIT INCLUDING A DIFFERENT ONE OF SAID PRIMARY WINDINGS AND A HALF-WAVE RECTIFIER IN SERIES WITH THAT WINDING, SAID TRANSFORMER MEANS HAVING SECONDARY WINDING MEANS, RECTIFIER MEANS, AND LOAD MEANS COUPLED TO SAID SECONDARY WINDING MEANS THROUGH SAID RECTIFIER MEANS, SAID RECTIFIER MEANS HAVING A THRESHOLD VOLTAGE VALUE WHICH IS BELOW THE OUTPUT VOLTAGE OF THE SECONDARY WINDING MEANS WHEN SAID LINES ARE FULLPHASING, AND WHICH THRESHOLD VOLTAGE VALUE IS ABOVE THE OUTPUT VOLTAGE OF THE SECONDARY WINDINGS MEANS WHEN SAID LINES ARE LESS THAN FULL-PHASING.
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) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |