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Patent US3213393A successfully refreshed from Google Patents.
US3213393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cavity device
Assignee: Westinghouse Electric Corp
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Filing: 1963-05-03
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Granted: 1965-10-19
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Expires: 1983-05-03
Abstract
No abstract record available.
Inventors
- 👤 Powell Kenneth Dean
- 👤 Jr Walter R Hayter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:08
CPC Classifications
H; H01; H01P; H01P7/00; H01P7/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A CAVITY RESONATOR COMPRISING A MEMBER HAVING AN OPENING THEREIN, CLOSURE MEANS FOR EACH END OF SAID OPENING TO DEFINE A CAVITY ADAPTED TO BE EXCITED SIMULTANEOUSLY IN TWO MODES, MEANS FOR COUPLING ENERGY INTO SAID CAVITY RESONATOR TO EXCITE TWO MODES OF OSCILLATION THEREIN, AND MEANS FOR SELECTIVELY TUNING SAID TWO MODES OF OSCILLATION FROM WHICH ENERGY IS DERIVED THROUGH THE WALLS OF SAID CAVITY BY MEANS OF TWO OUTPUTS MEANS, SAID TUNING MEANS COMPRISING A FLEXIBLE DIAPHRAGM FORMING ONE OF SAID CLOSURE MEANS, MEANS FOR EFFECTING SUBSTANTIALLY AXIAL MOTION OF SAID DIAPHRAGM AND MEANS FOR TILTING SAID DIAPHRAGM.
Claim 2
Dependent Claim
100 words
A CAVITY RESONATOR COMPRISING A MEMBER HAVING AN OPENING THEREIN, CLOSURE MEANS FOR EACH END OF SAID OPENING TO DEFINE A CAVITY ADAPTED TO BE EXCITED SIMULTANEOUSLY IN TWO MODES, MEANS FOR COUPLING ENERGY INTO SAID CAVITY RESONATOR TO EXCITE TWO MODES OF OSCILLATION THEREIN, AND MEANS FOR SELECTIVELY TUNING SAID TWO MODES OF OSCILLATION FROM WHICH ENERGY IS DERIVED THROUGH THE WALLS OF SAID CAVITY BY MEANS OF TWO OUTPUTS MEANS, SAID TUNING MEANS COMPRISING A FLEXIBLE DIAPHRAGM FORMING ONE OF SAID CLOSURE MEANS, MEANS FOR EFFECTING SUBSTANTIALLY AXIAL MOTION OF SAID DIAPHRAGM AND MEANS FOR TILTING SAID DIAPHRAGM.
References Cited (Backward Citations)
US2502456A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |