US3271616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Focusing systems with alternating magnets for traveling wave tubes
Assignee: Thales SA
•
Filing: 1962-03-20
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Granted: 1966-09-06
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Expires: 1982-03-20
Abstract
No abstract record available.
Inventors
- 👤 Verger Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:10
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/02; H01J23/08; H01J23/087; H01J23/0873
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
AN O-TYPE TRAVELING WAVE TUBE, COMPRISING: AN ELONGATED, SUBSTANTIALLY CYLINDRICAL ENVELOPE, ELECTRON GUN MEANS LOCATED WITHIN A FIRST PORTION OF SAID ENVELOPE; A WAVE RETARDING STRUCTURE LOCATED WITHIN A SECOND PORTION OF SAID ENVELOPE SUBSTANTIALLY ADJACENT SAID FIRST PORTION; AND A FOCUSSING SYSTEM FOR SAID TUBE INCLUDING A SUBSTANTIALLY PERMANENT MAGNET WITHIN THE AREA OF AND SURROUNDING SAID FIRST PORTION, A SERIES OF SUBSTANTIALLY IDENTICAL ANNULAR PERMANENT MAGNETS, OF ALTERNATELY OPPOSITE POLARITIES, WITHIN THE AREA OF AND SURROUNDING SAID SECOND PORTION, POLE PIECES ARRANGED BETWEEN ADJACENT PERMANENT MAGNETS, AND A FLUX-CARRYING ELEMENT, DISPOSED ON THE FIRST AND THIRD PERMANENT MAGNET OF SAID SERIES NEAR SAID ELECTRON GUN MEANS INTERCONNECTING THE POLE PIECES THEREOF.
Claim 2
Dependent Claim
113 words
AN O-TYPE TRAVELING WAVE TUBE, COMPRISING: AN ELONGATED, SUBSTANTIALLY CYLINDRICAL ENVELOPE, ELECTRON GUN MEANS LOCATED WITHIN A FIRST PORTION OF SAID ENVELOPE; A WAVE RETARDING STRUCTURE LOCATED WITHIN A SECOND PORTION OF SAID ENVELOPE SUBSTANTIALLY ADJACENT SAID FIRST PORTION; AND A FOCUSSING SYSTEM FOR SAID TUBE INCLUDING A SUBSTANTIALLY PERMANENT MAGNET WITHIN THE AREA OF AND SURROUNDING SAID FIRST PORTION, A SERIES OF SUBSTANTIALLY IDENTICAL ANNULAR PERMANENT MAGNETS, OF ALTERNATELY OPPOSITE POLARITIES, WITHIN THE AREA OF AND SURROUNDING SAID SECOND PORTION, POLE PIECES ARRANGED BETWEEN ADJACENT PERMANENT MAGNETS, AND A FLUX-CARRYING ELEMENT, DISPOSED ON THE FIRST AND THIRD PERMANENT MAGNET OF SAID SERIES NEAR SAID ELECTRON GUN MEANS INTERCONNECTING THE POLE PIECES THEREOF.
References Cited (Backward Citations)
US2867745A
Cited
US2886738A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |