Patent US3211947A successfully refreshed from Google Patents.
US3211947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Noise reduction of traveling-wave tubes by circuit refrigeration
Assignee: Individual
•
Filing: 1962-05-14
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Granted: 1965-10-12
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Expires: 1982-05-14
Abstract
No abstract record available.
Inventors
- 👤 Bloom Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:20
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/02; H01J23/11; H01J19/00; H01J19/74
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
IN A TRAVELING-WAVE TUBE HAVING A TUBE ENVELOPE AND A SLOW-WAVE STRUCTURE SUPPORTED WITHIN THE TUBE ENVELOPE AND IN THERMAL CONTACT THEREWITH, THE IMPROVEMENT COMPRISING; A COOLING JACKET SURROUNDING SAID TUBE ENVELOPE, THE COOLANT CHAMBER FORMED BY SAID JACKET AND SAID ENVELOPE EXTENDING OVER THE ENTIRE LENGTH OF SAID SLOW WAVE STRUCTURE; A WAVEGUIDE COUPLER LOCATED OUTSIDE SAID COOLING JACKET; AND CONDUCTIVE MEANS WITHIN THE CHAMBER FORMED BY SAID JACKET AND SAID ENVELOPE FOR EFFICIENTLY COUPLING SAID COUPLER WITH SAID SLOW-WAVE STRUCTURE THROUGH THE CHAMBER FORMED BY SAID JACKET AND SAID ENVELOPE, SAID CONDUCTIVE MEANS COMPRISING A PLURALITY OF CONCENTRIC RINGS OF DIFFERENT DIAMETERS LOCATED BETWEEN SAID WAVEGUIDE COUPLER AND SAID SLOW WAVE STRUCTURE.
Claim 2
Dependent Claim
114 words
IN A TRAVELING-WAVE TUBE HAVING A TUBE ENVELOPE AND A SLOW-WAVE STRUCTURE SUPPORTED WITHIN THE TUBE ENVELOPE AND IN THERMAL CONTACT THEREWITH, THE IMPROVEMENT COMPRISING; A COOLING JACKET SURROUNDING SAID TUBE ENVELOPE, THE COOLANT CHAMBER FORMED BY SAID JACKET AND SAID ENVELOPE EXTENDING OVER THE ENTIRE LENGTH OF SAID SLOW WAVE STRUCTURE; A WAVEGUIDE COUPLER LOCATED OUTSIDE SAID COOLING JACKET; AND CONDUCTIVE MEANS WITHIN THE CHAMBER FORMED BY SAID JACKET AND SAID ENVELOPE FOR EFFICIENTLY COUPLING SAID COUPLER WITH SAID SLOW-WAVE STRUCTURE THROUGH THE CHAMBER FORMED BY SAID JACKET AND SAID ENVELOPE, SAID CONDUCTIVE MEANS COMPRISING A PLURALITY OF CONCENTRIC RINGS OF DIFFERENT DIAMETERS LOCATED BETWEEN SAID WAVEGUIDE COUPLER AND SAID SLOW WAVE STRUCTURE.
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) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |