US3227916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tuning mechanism for electron discharge devices
Assignee: Varian Medical Systems Inc
•
Filing: 1960-10-07
•
Granted: 1966-01-04
•
Expires: 1980-10-07
Abstract
No abstract record available.
Inventors
- 👤 Proskauer Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:01
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/16; H01J23/18; H01J23/20; H01J23/207
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
IN AN ELECTRON DISCHARGE DEVICE, A HOLLOW SHELL SYMMETRICAL ABOUT A LONGITUDINAL AXIS AND DEFINING A CAVITY RESONATOR, A TUNING PADDLE PIVOTALLY MOUNTED AT ONE END ON THE SHELL FOR PIVOTAL MOVEMENT ABOUT AN AXIS PARALLEL TO SAID LONGITUDINAL AXIS AND EXTENDING INTO THE CAVITY IN A FREE END CAPACITIVELY RELATED TO THE SHELL, MEANS OPERTIVELY CONNECTED TO THE TUNING PADDLE AND EXTENDING OUT OF THE SHELL TO EFFECT CONTROLLED MOVEMENT OF THE TUNING PADDLE WITHIN THE CAVITY, AND FLEXIBLE WALL MEANS FORMING A HERMETIC SEAL BETWEEN THE PADDLE AND SAID SHELL.
Claim 2
Dependent Claim
92 words
IN AN ELECTRON DISCHARGE DEVICE, A HOLLOW SHELL SYMMETRICAL ABOUT A LONGITUDINAL AXIS AND DEFINING A CAVITY RESONATOR, A TUNING PADDLE PIVOTALLY MOUNTED AT ONE END ON THE SHELL FOR PIVOTAL MOVEMENT ABOUT AN AXIS PARALLEL TO SAID LONGITUDINAL AXIS AND EXTENDING INTO THE CAVITY IN A FREE END CAPACITIVELY RELATED TO THE SHELL, MEANS OPERTIVELY CONNECTED TO THE TUNING PADDLE AND EXTENDING OUT OF THE SHELL TO EFFECT CONTROLLED MOVEMENT OF THE TUNING PADDLE WITHIN THE CAVITY, AND FLEXIBLE WALL MEANS FORMING A HERMETIC SEAL BETWEEN THE PADDLE AND SAID SHELL.
References Cited (Backward Citations)
US3103609A
Cited
US2568325A
Cited
US2425738A
Cited
US2682623A
Cited
US2656484A
Cited
US2542797A
Cited
US2785334A
Cited
US2963616A
Cited
US2945156A
Cited
US2968013A
Cited
US2994009A
Cited
US3122669A
Cited
US3058026A
Cited
US3093804A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |