US3179876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical systems
Assignee: Brentford Transformers Ltd
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Filing: 1960-09-06
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Granted: 1965-04-20
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Expires: 1980-09-06
Abstract
No abstract record available.
Inventors
- 👤 Heuman Cecil Bourne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:00
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/14; H; H02; H02M; H02M5/00; H02M5/02; H02M5/04; H02M5/10; H02M5/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
IN A VOLTAGE CONTROL SYSTEM COMPRISING A VOLTAGE DIVIDING ELEMENT; A PAIR OF CONTACTS MOVABLE OVER SAID VOLTAGE DIVIDING ELEMENTS IN OPPOSITE DIRECTIONS IN SYNCHRONISM; AND A TRANSFORMER HAVING A PLURALITY OF WINDINGS INCLUDING A FIRST WINDING AND A SECOND WINDING, THE FIRST WINDING BEING CONNECTED BETWEEN ONE OF SAID CONTACTS AND ONE ELECTRICAL END OF THE VOLTAGE DIVIDING ELEMENT AND THE SECOND WINDING BEING CONNECTED BETWEEN THE OTHER OF SAID CONTACTS AND THE OTHER ELECTRICAL END OF THE VOLTAGE DIVIDING ELEMENT.
Claim 2
Dependent Claim
82 words
IN A VOLTAGE CONTROL SYSTEM COMPRISING A VOLTAGE DIVIDING ELEMENT; A PAIR OF CONTACTS MOVABLE OVER SAID VOLTAGE DIVIDING ELEMENTS IN OPPOSITE DIRECTIONS IN SYNCHRONISM; AND A TRANSFORMER HAVING A PLURALITY OF WINDINGS INCLUDING A FIRST WINDING AND A SECOND WINDING, THE FIRST WINDING BEING CONNECTED BETWEEN ONE OF SAID CONTACTS AND ONE ELECTRICAL END OF THE VOLTAGE DIVIDING ELEMENT AND THE SECOND WINDING BEING CONNECTED BETWEEN THE OTHER OF SAID CONTACTS AND THE OTHER ELECTRICAL END OF THE VOLTAGE DIVIDING ELEMENT.
References Cited (Backward Citations)
US1959153A
Cited
US2325936A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-19 | 1968-10-19 | 1969-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-19 | 1972-10-19 | 1973-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-19 | 1976-10-19 | 1977-04-20 | $7700.00 | Window Closed / Lapsed |