US3221206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Output window and coupler for high frequency electron discharge device
Assignee: Varian Medical Systems Inc
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Filing: 1964-02-21
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Granted: 1965-11-30
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Expires: 1984-02-21
Abstract
No abstract record available.
Inventors
- 👤 John D Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:24
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/08; H01J; H01J23/00; H01J23/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A HIGH FREQUENCY ELECTRON DISCHARGE DEVICE INCLUDING ELECTRON BEAM FORMING AND PROJECTING MEANS, MEANS FOR PROVIDING ELECTROMAGNETIC INTERACTION BETWEEN ELECTROMAGNETIC ENERGY AND AN ELECTRON BEAM AND ELECTROMAGNETIC TRANSMISSION COUPLER MEANS COUPLED TO SAID ELECTRON DISCHARGE DEVICE, SAID COUPLER MEANS INCLUDING A HOLLOW WAVEGUIDE HAVING A LOW LOSS WAVE PERMEABLE BLOCK WINDOW DISPOSED THEREIN IN VACUUM SEALED RELATIONSHIP, THE HOLLOW WAVEGUIDE PORTION OF SAID COUPLER HAVING AN EPLANE IMPEDANCE DISCONTINUITY DISPOSED ON EACH SIDE OF SAID BLOCK WINDOW, SAID COUPLER BEING FURTHER CHARACTERIZED BY HAVING WAVEGUIDE PORTIONS ON THE OUTWARDLY DIRECTED ENDS OF SAID E-PLANE IMPEDANCE DISCONTINUITIES, SAID E-PLANE IMPEDANCE DISCONTINUITIES BEING SPACED FROM SAID BLOCK WINDOW SUCH THAT SAID BLOCK WINDOW IS BROADBANDED, SAID BLOCK WINDOW HAVING A LENGTH AS MEASURED ALONG THE TRANSMISSION PATH OF SAID COUPLER WHICH FALLS WITHIN THE FOLLOWING RANGE; SUBSTANTIALLY N/2$GE WHERE $GE IS DETERMINED AT THE CENTER FREQUENCY OF THE PASSBAND OF THE COUPLER AND N IS ANY POSITIVE INTEGER, SAID WAVE-
Claim 2
Dependent Claim
158 words
A HIGH FREQUENCY ELECTRON DISCHARGE DEVICE INCLUDING ELECTRON BEAM FORMING AND PROJECTING MEANS, MEANS FOR PROVIDING ELECTROMAGNETIC INTERACTION BETWEEN ELECTROMAGNETIC ENERGY AND AN ELECTRON BEAM AND ELECTROMAGNETIC TRANSMISSION COUPLER MEANS COUPLED TO SAID ELECTRON DISCHARGE DEVICE, SAID COUPLER MEANS INCLUDING A HOLLOW WAVEGUIDE HAVING A LOW LOSS WAVE PERMEABLE BLOCK WINDOW DISPOSED THEREIN IN VACUUM SEALED RELATIONSHIP, THE HOLLOW WAVEGUIDE PORTION OF SAID COUPLER HAVING AN EPLANE IMPEDANCE DISCONTINUITY DISPOSED ON EACH SIDE OF SAID BLOCK WINDOW, SAID COUPLER BEING FURTHER CHARACTERIZED BY HAVING WAVEGUIDE PORTIONS ON THE OUTWARDLY DIRECTED ENDS OF SAID E-PLANE IMPEDANCE DISCONTINUITIES, SAID E-PLANE IMPEDANCE DISCONTINUITIES BEING SPACED FROM SAID BLOCK WINDOW SUCH THAT SAID BLOCK WINDOW IS BROADBANDED, SAID BLOCK WINDOW HAVING A LENGTH AS MEASURED ALONG THE TRANSMISSION PATH OF SAID COUPLER WHICH FALLS WITHIN THE FOLLOWING RANGE; SUBSTANTIALLY N/2$GE WHERE $GE IS DETERMINED AT THE CENTER FREQUENCY OF THE PASSBAND OF THE COUPLER AND N IS ANY POSITIVE INTEGER, SAID WAVE-
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) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |