US3374370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetohydrodynamic electrical generators
Assignee: Central Electricity Generating Board
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Filing: 1965-03-22
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Granted: 1968-03-19
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Expires: 1985-03-22
Abstract
No abstract record available.
Inventors
- 👤 Swift-Hook Donald Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:34
CPC Classifications
H; H02; H02K; H02K44/00; H02K44/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
IN A MAGNETOHYDRODYNAMIC ELECTRICAL GENERATOR, A DUCT THROUGH WHICH CONDUCTIVE GAS FLOWS, TWO SIMILAR SERIES OF AXIALLY SPACED ELECTRODES ON OPPOSITE SURFACES OF THE DUCT, ELECTRICAL CONNECTIONS BETWEEN THOSE ELECTRODES OF THE TWO SERIES WHICH LIE IN THE DESIRED EQUIPOTENTIAL PLANES AT AN ANGLE TO THE AXIS OF THE DUCE WHEREBY THERE ARE SOME UNCONNECTED ELECTRODES AT ONE END OF ONE SERIES AND AT THE OTHER END OF THE OTHER SERIES A MAIN LOAD, FIRST AND SECOND NETWORKS OF SUBSIDIARY LOADS, MEANS CONNECTING ONE END OF SAID MAIN LOAD THROUGH SAID FIRST NETWORK OF SUBSIDIARY LOADS TO THE UNCONNECTED ELECTRODES AT ONE END OF ONE SERIES, AND MEANS CONNECTING THE OTHER END OF SAID MAIN LOAD THROUGH SAID SECOND NETWORK OF SUBSIDIARY LOADS TO THE UNCONNECTED ELECTRODES AT THE OTHER END OF THE OTHER SERIES, THE SUBSIDIARY LOADS IN EACH NETWORK BEING PROPORTIONED IN ACCORDANCE WITH CURRENT FLOWS TO THE VARIOUS ELECTRODES TO WHICH THE NETWORK IS CONNECTED TO ALLOW CURRENT TO BE DRAWN FROM OR FED INTO THESE ELECTRODES AT THE POTENTIALS APPROPRIATE TO THE REQUIRED POTENTIAL DISTRIBUTION ALONG THE DUCT.
Claim 2
Dependent Claim
182 words
IN A MAGNETOHYDRODYNAMIC ELECTRICAL GENERATOR, A DUCT THROUGH WHICH CONDUCTIVE GAS FLOWS, TWO SIMILAR SERIES OF AXIALLY SPACED ELECTRODES ON OPPOSITE SURFACES OF THE DUCT, ELECTRICAL CONNECTIONS BETWEEN THOSE ELECTRODES OF THE TWO SERIES WHICH LIE IN THE DESIRED EQUIPOTENTIAL PLANES AT AN ANGLE TO THE AXIS OF THE DUCE WHEREBY THERE ARE SOME UNCONNECTED ELECTRODES AT ONE END OF ONE SERIES AND AT THE OTHER END OF THE OTHER SERIES A MAIN LOAD, FIRST AND SECOND NETWORKS OF SUBSIDIARY LOADS, MEANS CONNECTING ONE END OF SAID MAIN LOAD THROUGH SAID FIRST NETWORK OF SUBSIDIARY LOADS TO THE UNCONNECTED ELECTRODES AT ONE END OF ONE SERIES, AND MEANS CONNECTING THE OTHER END OF SAID MAIN LOAD THROUGH SAID SECOND NETWORK OF SUBSIDIARY LOADS TO THE UNCONNECTED ELECTRODES AT THE OTHER END OF THE OTHER SERIES, THE SUBSIDIARY LOADS IN EACH NETWORK BEING PROPORTIONED IN ACCORDANCE WITH CURRENT FLOWS TO THE VARIOUS ELECTRODES TO WHICH THE NETWORK IS CONNECTED TO ALLOW CURRENT TO BE DRAWN FROM OR FED INTO THESE ELECTRODES AT THE POTENTIALS APPROPRIATE TO THE REQUIRED POTENTIAL DISTRIBUTION ALONG THE DUCT.
References Cited (Backward Citations)
US3294990A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-19 | 1971-09-18 | 1972-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-19 | 1975-09-18 | 1976-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-19 | 1979-09-18 | 1980-03-19 | $7700.00 | Window Closed / Lapsed |