US3355609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetohydrodynamic electrical generators
Assignee: Central Electricity Generating Board
•
Filing: 1965-04-19
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Granted: 1967-11-28
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Expires: 1985-04-19
Abstract
No abstract record available.
Inventors
- 👤 Horn George
- 👤 Chojnowski Boguslaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:19
CPC Classifications
H; H02; H02K; H02K44/00; H02K44/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
IN A MAGNETOHYDRODYNAMIC ELECTRICAL GENERATOR OPERATING ON AN OPEN CYCLE WITH FUEL BURNT IN COMBUSTION AIR TO PROVIDE COMBUSTION GASES WHICH ARE PASSED THROUGH A MAGNETOHYDRODYNAMIC DUCT; THE COMBINATION OF A COMPRESSOR COMPRESSING AIR, A FIRST STAGE PRE-HEATER COMPRISING A HEAT EXCHANGER IN THE OUTLET FROM SAID MAGNETOHYDRODYNAMIC DUCT ARRANGED TO HEAT SAID COMPRESSED AIR AND AN INDEPENDENTLY FIRED PRE-HEATER FOR FURTHER PREHEATING THE AIR FROM SAID FIRST STAGE PRE-HEATER TO PROVIDE SAID COMBUSTION AIR, SAID INDEPENDENTLY FIRED PRE-HEATER COMPRISING MEANS FOR BURNING FUEL IN PART OF THE AIR TAKEN FROM SAID COMPRESSOR TO HEAT THE REMAINING PART OF THE AIR SO THAT THE PRESSURE ON THE COMBUSTION SIDE AND TO THE AIR TO BE HEATED IN SAID INDEPENDENTLY FIRED PRE-HEATER ARE SUBSTANTIALLY EQUAL.
Claim 2
Dependent Claim
124 words
IN A MAGNETOHYDRODYNAMIC ELECTRICAL GENERATOR OPERATING ON AN OPEN CYCLE WITH FUEL BURNT IN COMBUSTION AIR TO PROVIDE COMBUSTION GASES WHICH ARE PASSED THROUGH A MAGNETOHYDRODYNAMIC DUCT; THE COMBINATION OF A COMPRESSOR COMPRESSING AIR, A FIRST STAGE PRE-HEATER COMPRISING A HEAT EXCHANGER IN THE OUTLET FROM SAID MAGNETOHYDRODYNAMIC DUCT ARRANGED TO HEAT SAID COMPRESSED AIR AND AN INDEPENDENTLY FIRED PRE-HEATER FOR FURTHER PREHEATING THE AIR FROM SAID FIRST STAGE PRE-HEATER TO PROVIDE SAID COMBUSTION AIR, SAID INDEPENDENTLY FIRED PRE-HEATER COMPRISING MEANS FOR BURNING FUEL IN PART OF THE AIR TAKEN FROM SAID COMPRESSOR TO HEAT THE REMAINING PART OF THE AIR SO THAT THE PRESSURE ON THE COMBUSTION SIDE AND TO THE AIR TO BE HEATED IN SAID INDEPENDENTLY FIRED PRE-HEATER ARE SUBSTANTIALLY EQUAL.
References Cited (Backward Citations)
US3007306A
Cited
US3223860A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-27 | 1971-05-29 | 1971-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-27 | 1975-05-29 | 1975-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-27 | 1979-05-29 | 1979-11-28 | $7700.00 | Window Closed / Lapsed |