Patent US3289035A successfully refreshed from Google Patents.
US3289035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reverse magnetron having means to suppress undersired modes
Assignee: SFD LAB Inc
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Filing: 1962-08-10
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Granted: 1966-11-29
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Expires: 1982-08-10
Abstract
No abstract record available.
Inventors
- 👤 Drexler Jerome
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:55
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/50; H01J25/52; H01J25/54; H01J25/55; H01J23/00; H01J23/02; H01J23/04; H01J23/05; H01J23/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A COUPLING DEVICE FOR WAVE ENERGY COMMUNICATION BETWEEN A HOLLOW CAVITY RESONATOR OPERATING IN A CIRCULAR ELECTRIC MODE AND A LOAD INCLUDING, A CIRCULAR ELECTRIC MODE CAVITY RESONATOR HAVING AN END WALL, SAID END WALL HAVING AN ELONGATED COUPLING HOLE THERETHROUGH, A HOLLOW CIRCULAR ELECTRIC MODE WAVE SUPPORTING STRUCTURE AXIALLY ALIGNED WITH SAID COUPLING HOLE FOR WAVE COMMUNICATION BETWEEN SAID CAVITY AND THE LOAD, SAID ELONGATED COUPLING HOLD BEING ELONGATED IN THE CIRCUMFERENTIAL DIRECTION OF SAID CAVITY END WALL TO PROVIDE COUPLING TO THE DISIRED CIRCULAR ELECTRIC MODE WHILD MORE HEAVILY COUPLING THE LOAD TO THE UNDESIRED NON-CIRCULAR ELECTRIC MODES OF SAID CAVITY HAVING RADIAL CURRENTS IN SAID WALL TO THEREBY LOAD SAID UNDESIRED MODES FOR SUPPRESSION THEREOF.
Claim 2
Dependent Claim
118 words
A COUPLING DEVICE FOR WAVE ENERGY COMMUNICATION BETWEEN A HOLLOW CAVITY RESONATOR OPERATING IN A CIRCULAR ELECTRIC MODE AND A LOAD INCLUDING, A CIRCULAR ELECTRIC MODE CAVITY RESONATOR HAVING AN END WALL, SAID END WALL HAVING AN ELONGATED COUPLING HOLE THERETHROUGH, A HOLLOW CIRCULAR ELECTRIC MODE WAVE SUPPORTING STRUCTURE AXIALLY ALIGNED WITH SAID COUPLING HOLE FOR WAVE COMMUNICATION BETWEEN SAID CAVITY AND THE LOAD, SAID ELONGATED COUPLING HOLD BEING ELONGATED IN THE CIRCUMFERENTIAL DIRECTION OF SAID CAVITY END WALL TO PROVIDE COUPLING TO THE DISIRED CIRCULAR ELECTRIC MODE WHILD MORE HEAVILY COUPLING THE LOAD TO THE UNDESIRED NON-CIRCULAR ELECTRIC MODES OF SAID CAVITY HAVING RADIAL CURRENTS IN SAID WALL TO THEREBY LOAD SAID UNDESIRED MODES FOR SUPPRESSION THEREOF.
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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |