US3275859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulating vanes for linear mhd devices
Assignee: RTX Corp
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Filing: 1961-10-02
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Granted: 1966-09-27
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Expires: 1981-10-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Russell G Meyerand
- 👤 Edmund C Lary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:03
CPC Classifications
H; H02; H02K; H02K44/00; H02K44/08; H02K44/18; H02K44/26
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
81 words
IN AN ALTERNATING CURRENT MAGNETOHYDRODYNAMIC DEVICE HAVING A CONDUIT FOR THE PASSAGE OF A CONDUCTING FLUID, MEANS FOR GENERATING A MAGNETIC FIELD ALONG THE LENGTH OF SAID CONDUIT, SAID MAGNETIC FIELD INTERACTING WITH SAID CONDUCTING FLUID TO GENERATE AZIMUTHAL CURRENTS IN SAID CONDUCTING FLUID, AND VANE MEANS EXTENDING FROM THE WALL OF SAID CONDUIT INTO SAID CONDUIT AND EXTENDING LONGITUDINALLY ALONG SAID CONDUIT FOR INTERRUPTING PART OF SAID AZIMUTHAL CURRENTS TO FACILITATE PENETRATIONS OF SAID MAGNETIC FIELD INTO SAID CONDUCTING FLUID.
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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |