US3105171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High voltage d. c. transmission systems
Assignee: Associated Electrical Industries Ltd
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Filing: 1961-07-03
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Granted: 1963-09-24
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Expires: 1981-07-03
Abstract
No abstract record available.
Inventors
- 👤 Matthews John Jenkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:01
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/59; H01H33/596
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A CURRENT INTERRUPTING ARRANGEMENT IN A HIGH VOLTAGE D.C. CIRCUIT, COMPRISING A CIRCUIT-BREAKER, CONTACTS OF SAID CIRCUIT-BREAKER CONNECTED IN SAID D.C. CIRCUIT, A PLASMA DEVICE, SWITCHING MEANS FOR CONNECTING SAID PLASMA DEVICE IN SERIES WITH SAID CIRCUIT-BREAKER CONTACTS, MEANS FOR PRODUCING A CURRENT IN THE PLASMA AND FOR PRODUCING A MAGNETIC FIELD ACROSS THE PLASMA TO EFFECT ROTATION OF THE PLASMA ABOUT A FIXED AXIS FOR THE GENERATION OF AN E.M.F. SUBSTANTIALLY EQUAL AND OPPOSITE TO THE VOLTAGE ACROSS THE TERMINALS OF THE PLASMA DEVICE DUE TO CURRENT FLOWING IN THE D.C. CIRCUIT, AND FURTHER SWITCHING MEANS FOR RENDERING THE PLASMA CURRENT AND MAGNETIC FIELD PRODUCING MEANS EFFECTIVE.
Claim 2
Dependent Claim
108 words
A CURRENT INTERRUPTING ARRANGEMENT IN A HIGH VOLTAGE D.C. CIRCUIT, COMPRISING A CIRCUIT-BREAKER, CONTACTS OF SAID CIRCUIT-BREAKER CONNECTED IN SAID D.C. CIRCUIT, A PLASMA DEVICE, SWITCHING MEANS FOR CONNECTING SAID PLASMA DEVICE IN SERIES WITH SAID CIRCUIT-BREAKER CONTACTS, MEANS FOR PRODUCING A CURRENT IN THE PLASMA AND FOR PRODUCING A MAGNETIC FIELD ACROSS THE PLASMA TO EFFECT ROTATION OF THE PLASMA ABOUT A FIXED AXIS FOR THE GENERATION OF AN E.M.F. SUBSTANTIALLY EQUAL AND OPPOSITE TO THE VOLTAGE ACROSS THE TERMINALS OF THE PLASMA DEVICE DUE TO CURRENT FLOWING IN THE D.C. CIRCUIT, AND FURTHER SWITCHING MEANS FOR RENDERING THE PLASMA CURRENT AND MAGNETIC FIELD PRODUCING MEANS EFFECTIVE.
References Cited (Backward Citations)
US1537378A
Cited
US1818969A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |