US3308332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio frequency window cooling structure and transmission devices using same
Assignee: Varian Medical Systems Inc
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Filing: 1963-07-16
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Granted: 1967-03-07
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Expires: 1983-07-16
Abstract
No abstract record available.
Inventors
- 👤 Richard H L Bibb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:00
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A MICROWAVE TRANSMISSION STRUCTURE FOR TRANSMITTING HIGH POWER ELECTROMAGNETIC WAVES COMPRISING: WALL MEANS DEFINING A WAVEGUIDE FOR THE ELECTROMAGNETIC WAVES AND HAVING A LONGITUDINAL AXIS TAKEN IN THE DIRECTION OF POWER FLOW ALONG SAID WAVEGUIDE, AN ELECTROMAGNETIC WAVE PERMEABLE WINDOW, MEANS FOR SUPPORTING SAID WAVE PERMEABLE WINDOW WITHIN SAID WAVEGUIDE, SAID WAVEGUIDE WALL MEANS PROVIDED WITH AN ARRAY OF APERTURES ON A FIRST SIDE OF SAID WAVEGUIDE FOR PASSING GAS INTO SAID WAVEGUIDE TOWARD SAID WINDOW AND AN ARRAY OF APERTURES ON A SECOND SIDE OF SAID WAVEGUIDE SUBSTANTIALLY OPPOSITE SAID FIRST SIDE FOR PASSING GAS OUT OF SAID WAVEGUIDE, THE AXES OF SAID APERTURES BEING DIRECTED TOWARD SAID WINDOW, AND SAID ARRAY OF APERTURES HAVING A CENTER SPACED FROM SAID WINDOW ALONG THE LONGITUDINAL AXIS OF SAID
Claim 2
Dependent Claim
128 words
A MICROWAVE TRANSMISSION STRUCTURE FOR TRANSMITTING HIGH POWER ELECTROMAGNETIC WAVES COMPRISING: WALL MEANS DEFINING A WAVEGUIDE FOR THE ELECTROMAGNETIC WAVES AND HAVING A LONGITUDINAL AXIS TAKEN IN THE DIRECTION OF POWER FLOW ALONG SAID WAVEGUIDE, AN ELECTROMAGNETIC WAVE PERMEABLE WINDOW, MEANS FOR SUPPORTING SAID WAVE PERMEABLE WINDOW WITHIN SAID WAVEGUIDE, SAID WAVEGUIDE WALL MEANS PROVIDED WITH AN ARRAY OF APERTURES ON A FIRST SIDE OF SAID WAVEGUIDE FOR PASSING GAS INTO SAID WAVEGUIDE TOWARD SAID WINDOW AND AN ARRAY OF APERTURES ON A SECOND SIDE OF SAID WAVEGUIDE SUBSTANTIALLY OPPOSITE SAID FIRST SIDE FOR PASSING GAS OUT OF SAID WAVEGUIDE, THE AXES OF SAID APERTURES BEING DIRECTED TOWARD SAID WINDOW, AND SAID ARRAY OF APERTURES HAVING A CENTER SPACED FROM SAID WINDOW ALONG THE LONGITUDINAL AXIS OF SAID
References Cited (Backward Citations)
US2820165A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |