US3354348A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Harmonic producing velocity modulation tube having particular output cavity structure
Assignee: US Philips Corp
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Filing: 1964-03-04
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Granted: 1967-11-21
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Expires: 1984-03-04
Abstract
No abstract record available.
Inventors
- 👤 Bernardus Bastiaan Van Iperen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:12
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/02; H01J25/10; H01J25/12; H01J23/00; H01J23/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A VELOCITY MODULATED ELECTRON DICHARGE TUBE FOR PRODUCING A HARMONIC OF A HIGH-FREQUENCY ELECTROMAGNETIC OSCILLATION COMPRISING IN SUCCESSION WITHIN AN EVACUATED ENVELOPE MEANS TO GENERATE AND DIRECT AN ELECTRON BEAM ALONG A GIVEN AXIS, A MODULATION SYSTEM, A DRIFT SPACE, AND AN OUTPUT SYSTEM COMPRISING A RESONANT CAVITY IN THE PATH OF SAID ELECTRON BEAM COUPLED TO A WAVE-GUIDE THROUGH AN ANNULAR GAP FORMED BY WALLS PERPENDICULAR TO THE AXIS OF THE ELECTRON BEAM, SAID GAP HAVING A RADIAL DIMENSION OF APPROXIMATELY ONE-QUARTER HAVING A RADIAL THE HARMONIC FREQUENCY, SAID RESONANT CAVITY HAVING SPACED PARALLEL SIDE-WALLS EXTENDING IN TWO PLANES SUBSTANTIALLY PERPENDICULAR TO THE ELECTRON BEAM AXIS.
Claim 2
Dependent Claim
107 words
A VELOCITY MODULATED ELECTRON DICHARGE TUBE FOR PRODUCING A HARMONIC OF A HIGH-FREQUENCY ELECTROMAGNETIC OSCILLATION COMPRISING IN SUCCESSION WITHIN AN EVACUATED ENVELOPE MEANS TO GENERATE AND DIRECT AN ELECTRON BEAM ALONG A GIVEN AXIS, A MODULATION SYSTEM, A DRIFT SPACE, AND AN OUTPUT SYSTEM COMPRISING A RESONANT CAVITY IN THE PATH OF SAID ELECTRON BEAM COUPLED TO A WAVE-GUIDE THROUGH AN ANNULAR GAP FORMED BY WALLS PERPENDICULAR TO THE AXIS OF THE ELECTRON BEAM, SAID GAP HAVING A RADIAL DIMENSION OF APPROXIMATELY ONE-QUARTER HAVING A RADIAL THE HARMONIC FREQUENCY, SAID RESONANT CAVITY HAVING SPACED PARALLEL SIDE-WALLS EXTENDING IN TWO PLANES SUBSTANTIALLY PERPENDICULAR TO THE ELECTRON BEAM AXIS.
References Cited (Backward Citations)
GB541623A
Cited
US2424959A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |