Patent US3354328A successfully refreshed from Google Patents.
US3354328A
Expired / Lapsed
US
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Magnetohydrodynamic apparatus
Assignee: CA Parsons and Co Ltd
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Filing: 1963-09-25
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Granted: 1967-11-21
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Expires: 1983-09-25
Abstract
No abstract record available.
Inventors
- 👤 Maitland Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:11
CPC Classifications
H; H02; H02K; H02K44/00; H02K44/08; H02K44/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
MAGNETO-HYDRO-DYNAMIC APPARATUS FOR THE DIRECT GENERATION OF ELECTRICITY COMPRISING: A DUCT THROUGH WHICH A THERMALLY IONIZED GAS RAPIDLY IS MOVEABLE IN THE DIRECTION OF THE LONGITUDINAL AXIS OF SAID DUCT; MEANS TO APPLY A MAGNETIC FIELD TRANSVERSE TO THE LONGITUDINAL AXIS OF THE DUCT TO PRODUCE AN ELECTRIC FIELD WHICH IS PERPENDICULAR TO BOTH THE DIRECTION OF MOTION OF SAID GAS AND SAID MAGNETIC FIELD; A PLURALITY OF LIGHT MEANS EXTERNAL OF SAID DUCT OT PRODUCE READIATION WHICH CAUSES PHOTO-IONIZATION OF SAID GAS; A PLURALITY OF WINDOWS IN SAID DUCT WITHIN SAID MAGNETIC FIELD DISPOSED TO ADMIT SAID RADIATIONS INTO SAID DUCT WITHIN THE MAGNETIC FIELD TO PHOTO-IONIZE SAID GAS, SAID WINDOWS BEING ARRANGED ON OPPOSITE SIDES OF SAID DUCT AND IN STAGGERED RELATIONSHIP ALONG THE DUCT SUCH THAT WINDOWS ON OPPOSITE SIDES OF THE DUCT ARE OUT OF ALIGNMENT; AND ELECTRODES ON OPPOSITE SIDES OF THE DUCT AND POSITIONED TO ACCEPT SAID ELECTRIC CURRENT INDUCED IN SAID DIRECTION PERPENDICULAR TO BOTH SAID DIRECTION OF MOTION OF SAID GAS AND SAID MAGNETIC FIELD.
Claim 2
Dependent Claim
173 words
MAGNETO-HYDRO-DYNAMIC APPARATUS FOR THE DIRECT GENERATION OF ELECTRICITY COMPRISING: A DUCT THROUGH WHICH A THERMALLY IONIZED GAS RAPIDLY IS MOVEABLE IN THE DIRECTION OF THE LONGITUDINAL AXIS OF SAID DUCT; MEANS TO APPLY A MAGNETIC FIELD TRANSVERSE TO THE LONGITUDINAL AXIS OF THE DUCT TO PRODUCE AN ELECTRIC FIELD WHICH IS PERPENDICULAR TO BOTH THE DIRECTION OF MOTION OF SAID GAS AND SAID MAGNETIC FIELD; A PLURALITY OF LIGHT MEANS EXTERNAL OF SAID DUCT OT PRODUCE READIATION WHICH CAUSES PHOTO-IONIZATION OF SAID GAS; A PLURALITY OF WINDOWS IN SAID DUCT WITHIN SAID MAGNETIC FIELD DISPOSED TO ADMIT SAID RADIATIONS INTO SAID DUCT WITHIN THE MAGNETIC FIELD TO PHOTO-IONIZE SAID GAS, SAID WINDOWS BEING ARRANGED ON OPPOSITE SIDES OF SAID DUCT AND IN STAGGERED RELATIONSHIP ALONG THE DUCT SUCH THAT WINDOWS ON OPPOSITE SIDES OF THE DUCT ARE OUT OF ALIGNMENT; AND ELECTRODES ON OPPOSITE SIDES OF THE DUCT AND POSITIONED TO ACCEPT SAID ELECTRIC CURRENT INDUCED IN SAID DIRECTION PERPENDICULAR TO BOTH SAID DIRECTION OF MOTION OF SAID GAS AND SAID MAGNETIC FIELD.
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) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |