US3297906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High frequency electron discharge device of the traveling wave type having an interconnected cell slow wave circuit with improved slot coupling
Assignee: Varian Medical Systems Inc
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Filing: 1963-05-29
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Granted: 1967-01-10
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Expires: 1983-05-29
Abstract
No abstract record available.
Inventors
- 👤 Richard T Schumacher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:25
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/16; H01J23/24; Y; Y10; Y10S; Y10S228/00; Y10S228/903
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
AN ELECTRON BEAM DISCHARGE DEVICE INCLUDING A SLOW WAVE STRUCTURE FOR PROVIDING INTERACTION BETWEEN AN ELECTROMAGNETIC WAVE BEING PROPAGATED THEREBY AND A BEAM OF ELECTRONS BEING PROJECTED ALONG A PREDETERMINED AXIS, COMPRISING, A SERIES OF INTERACTION CAVITIES POSITIONED SUCCESSIVELY ALONG SAID AXIS, SAID INTERACTION CAVITIES BEING DEFINED BY A PLURALTY OF WALL MEMBERS DISPOSED SUCCESSIVELY ACROSS SAID PREDETERMINED AXIS AND HAVING SUCCESSIVELY ALIGNED APERTURES FOR PASSAGE OF SAID ELECTRON BEAM THERETHROUGH, A PLURALITY OF SAID APERTURED WALL MEMBERS EACH HAVING A SLOT SUBTENDING AN ARC OF A CIRCLE ABOUT SAID AXIS, THE WIDTH OF SAID SLOT BEING LESS THAN ONE SIXTH OF THE LENGTH OF SAID SLOT, SAID SLOTS IN SUCCESSIVELY DISPOSED WALL MEMBERS SUBTENDING A PORTION OF THE SAME ARC ABOUT SAID AXIS, AND MEANS FOR SPACING SUCCESSIVE WALL MEMBERS APART IN THE DIRECTION OF AND ALONG SAID AXIS.
Claim 2
Dependent Claim
140 words
AN ELECTRON BEAM DISCHARGE DEVICE INCLUDING A SLOW WAVE STRUCTURE FOR PROVIDING INTERACTION BETWEEN AN ELECTROMAGNETIC WAVE BEING PROPAGATED THEREBY AND A BEAM OF ELECTRONS BEING PROJECTED ALONG A PREDETERMINED AXIS, COMPRISING, A SERIES OF INTERACTION CAVITIES POSITIONED SUCCESSIVELY ALONG SAID AXIS, SAID INTERACTION CAVITIES BEING DEFINED BY A PLURALTY OF WALL MEMBERS DISPOSED SUCCESSIVELY ACROSS SAID PREDETERMINED AXIS AND HAVING SUCCESSIVELY ALIGNED APERTURES FOR PASSAGE OF SAID ELECTRON BEAM THERETHROUGH, A PLURALITY OF SAID APERTURED WALL MEMBERS EACH HAVING A SLOT SUBTENDING AN ARC OF A CIRCLE ABOUT SAID AXIS, THE WIDTH OF SAID SLOT BEING LESS THAN ONE SIXTH OF THE LENGTH OF SAID SLOT, SAID SLOTS IN SUCCESSIVELY DISPOSED WALL MEMBERS SUBTENDING A PORTION OF THE SAME ARC ABOUT SAID AXIS, AND MEANS FOR SPACING SUCCESSIVE WALL MEMBERS APART IN THE DIRECTION OF AND ALONG SAID AXIS.
References Cited (Backward Citations)
US3099767A
Cited
US3099765A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |