US3147395A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave transmission gaseous discharge control device having gas reservoir
Assignee: Varian Medical Systems Inc
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Filing: 1960-11-23
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Granted: 1964-09-01
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Expires: 1980-11-23
Abstract
No abstract record available.
Inventors
- 👤 Eugene L Street
- 👤 Harold A Sleeper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:56
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
187 words
A GASEOUS DISCHARGE SWITCHING DEVICE FOR CONTROL OF TRANSMISSION OF ULTRA HIGH FREQUENCY ELECTROMAGNETIC ENERGY AND FOR INSTALLATION ACROSS A COUPLING APERTURE COMPRISING INNER AND AN OUTER CONCENTRICALLY DISPOSED CYLINDRICAL DIELECTRIC MEMBERS SPACED APART TO DEFINE AN ANNULAR DISCHARGE GAP, SO THAT SAID SWITCHING DEVICE HAS A RAPID DEIONIZATION TIME CHARACTERISTIC OF GASEOUS DIFFUSION WITHIN SAID ANNULAR DISCHARGE GAP FOR RECOVERY THEREOF, HOLLOW TUBULAR MEMBERS OF REDUCED DIAMETER JOINED TO THE ENDS OF THE INNER MEMBER BY MEANS OF A DIELECTRIC SEAL, SAID OUTER MEMBER BEING JOINED TO THE OUTER EDGES OF SAID TUBULAR MEMBERS BY A SIMILAR SEAL TO THEREBY DEFINE AN HERMETICALLY SEALED ENVELOPE HAVING ENLARGED ANNULAR CHAMBERS ADJACENT TO EACH END AND AN IONIZABLE GASEOUS ATMOSPHERE CONTAINED WITHIN SAID ENVELOPE UNDER REDUCED PRESSURE, SAID ANNULAR CHAMBERS FORMING SEPARATE RESERVOIRS WITHIN WHICH A PORTION OF SAID IONIZABLE GASEOUS ATMOSPHERE IS STORED FOR REPLENISHING A PORTION OF SAID GASEOUS ATMOSPHERE WHICH IS BEING IONIZED AND DEGRADED WITHIN SAID ANNULAR DISCHARGE GAP, SO THAT SAID DEIONIZATION TIME IS MAINTAINED WHILE SAID HIGH FREQUENCY ELECTROMAGNETIC ENERGY IS IONIZING SAID PORTION OF SAID GASEOUS ATMOSPHERE OF SAID SWITCHING DEVICE.
Claim 2
Dependent Claim
187 words
A GASEOUS DISCHARGE SWITCHING DEVICE FOR CONTROL OF TRANSMISSION OF ULTRA HIGH FREQUENCY ELECTROMAGNETIC ENERGY AND FOR INSTALLATION ACROSS A COUPLING APERTURE COMPRISING INNER AND AN OUTER CONCENTRICALLY DISPOSED CYLINDRICAL DIELECTRIC MEMBERS SPACED APART TO DEFINE AN ANNULAR DISCHARGE GAP, SO THAT SAID SWITCHING DEVICE HAS A RAPID DEIONIZATION TIME CHARACTERISTIC OF GASEOUS DIFFUSION WITHIN SAID ANNULAR DISCHARGE GAP FOR RECOVERY THEREOF, HOLLOW TUBULAR MEMBERS OF REDUCED DIAMETER JOINED TO THE ENDS OF THE INNER MEMBER BY MEANS OF A DIELECTRIC SEAL, SAID OUTER MEMBER BEING JOINED TO THE OUTER EDGES OF SAID TUBULAR MEMBERS BY A SIMILAR SEAL TO THEREBY DEFINE AN HERMETICALLY SEALED ENVELOPE HAVING ENLARGED ANNULAR CHAMBERS ADJACENT TO EACH END AND AN IONIZABLE GASEOUS ATMOSPHERE CONTAINED WITHIN SAID ENVELOPE UNDER REDUCED PRESSURE, SAID ANNULAR CHAMBERS FORMING SEPARATE RESERVOIRS WITHIN WHICH A PORTION OF SAID IONIZABLE GASEOUS ATMOSPHERE IS STORED FOR REPLENISHING A PORTION OF SAID GASEOUS ATMOSPHERE WHICH IS BEING IONIZED AND DEGRADED WITHIN SAID ANNULAR DISCHARGE GAP, SO THAT SAID DEIONIZATION TIME IS MAINTAINED WHILE SAID HIGH FREQUENCY ELECTROMAGNETIC ENERGY IS IONIZING SAID PORTION OF SAID GASEOUS ATMOSPHERE OF SAID SWITCHING DEVICE.
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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |