US3217190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spiral magnetohydrodynamic generator
Assignee: RTX Corp
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Filing: 1961-10-03
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Granted: 1965-11-09
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Expires: 1981-10-03
Abstract
No abstract record available.
Inventors
- 👤 George H Mclafferty
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; H02K44/12; H02K44/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A MAGNETOHYDROHYNAMIC GENERATOR INCLUDING A CASING HAVING A FIRST ANNULAR WALL FORMING CURVED FLUID CONFINING PATH, SAID WALL INCLUDING AN OUTER ELECTRODE, MEANS FOR INTRODUCING A WORKING FLUID INTO SAID PATH SUBSTANTIALLY TANGENTIALLY OF SAID WALL, A SECOND ANNULAR WALL SPACED INWARDLY FROM SAID FIRST WALL AND INCLUDING AN INNER ELECTRODE, MEANS IN SAID SECOND WALL RECEIVING WORKING FLUID FLOWING FROM SAID FIRST WALL, AND AN ANNULAR PARTITION BETWEEN SAID FIRST AND SECOND WALLS FOR DIVIDING THE ANNULAR PATH BETWEEN SAID FIRST AND SECOND WALLS INCLUDING OPENINGS PROVIDING COMMUNICATION BETWEEN THE DIVIDED PORTIONS OF SAID PATH, AND MEANS FOR ACCELERATING THE FLOW BETWEEN SAID DIVIDED PORTIONS.
Claim 2
Dependent Claim
106 words
A MAGNETOHYDROHYNAMIC GENERATOR INCLUDING A CASING HAVING A FIRST ANNULAR WALL FORMING CURVED FLUID CONFINING PATH, SAID WALL INCLUDING AN OUTER ELECTRODE, MEANS FOR INTRODUCING A WORKING FLUID INTO SAID PATH SUBSTANTIALLY TANGENTIALLY OF SAID WALL, A SECOND ANNULAR WALL SPACED INWARDLY FROM SAID FIRST WALL AND INCLUDING AN INNER ELECTRODE, MEANS IN SAID SECOND WALL RECEIVING WORKING FLUID FLOWING FROM SAID FIRST WALL, AND AN ANNULAR PARTITION BETWEEN SAID FIRST AND SECOND WALLS FOR DIVIDING THE ANNULAR PATH BETWEEN SAID FIRST AND SECOND WALLS INCLUDING OPENINGS PROVIDING COMMUNICATION BETWEEN THE DIVIDED PORTIONS OF SAID PATH, AND MEANS FOR ACCELERATING THE FLOW BETWEEN SAID DIVIDED PORTIONS.
References Cited (Backward Citations)
US1443091A
Cited
US2982214A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |