US3374368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetohydrodynamic apparatus
Assignee: Central Electricity Generating Board
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Filing: 1965-03-18
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Granted: 1968-03-19
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Expires: 1985-03-18
Abstract
No abstract record available.
Inventors
- 👤 Swift-Hook Donald Thomas
- 👤 Wright John Keith
- 👤 Maycock John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:11
CPC Classifications
H; H02; H02K; H02K44/00; H02K44/08; H02K44/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A DUCT FOR MAGNETOHYDRODYNAMIC APPARATUS CONSTRUCTED OF A NUMBER OF METAL TUBES, EACH SHAPED TO FORM A LOOP EXTENDING COMPLETELY AROUND THE DUCT, THE VARIOUS LOOPS BEING STACKED TOGETHER WITH ELECTRICAL INSULATION BETWEEN THEM TO FORM A DUCT WITH EACH LOOP LYING IN A PLANE OR OTHER SURFACE SUCH THAT THE PLANES OR SURFACES CORRESPOND WITH THE DESIRED EQUIPOTENTIAL SURFACES AND WHEREBY THE PORTIONS OF THE TUBE IN CONTACT WITH FLUID PASSING THROUGH THE DUCT MAY BE UTILISED AS ELECTRODES.
Claim 2
Dependent Claim
80 words
A DUCT FOR MAGNETOHYDRODYNAMIC APPARATUS CONSTRUCTED OF A NUMBER OF METAL TUBES, EACH SHAPED TO FORM A LOOP EXTENDING COMPLETELY AROUND THE DUCT, THE VARIOUS LOOPS BEING STACKED TOGETHER WITH ELECTRICAL INSULATION BETWEEN THEM TO FORM A DUCT WITH EACH LOOP LYING IN A PLANE OR OTHER SURFACE SUCH THAT THE PLANES OR SURFACES CORRESPOND WITH THE DESIRED EQUIPOTENTIAL SURFACES AND WHEREBY THE PORTIONS OF THE TUBE IN CONTACT WITH FLUID PASSING THROUGH THE DUCT MAY BE UTILISED AS ELECTRODES.
References Cited (Backward Citations)
No citation records indexed.
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 |