US3886397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hybrid slow wave circuit
Assignee: Varian Medical Systems Inc
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Filing: 1974-01-10
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Granted: 1975-05-27
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Expires: 1994-01-10
Abstract
Abstract A slow wave circuit of a microwave tube includes a wide band helix-type slow wave circuit, such as a comb-supported ring bar (CSRB) circuit, followed by a coupled cavity slow wave output circuit in direct microwave coupling relationship with the CSRB circuit.
Inventors
- 👤 Yukio Hiramatsu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:53
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/16; H01J23/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A device for progressively interacting micrOwave energy with an electron beam comprising: a. means for projecting a beam of electrons over an elongted beam path; b. a ring and bar slow wave circuit disposed along said beam path in enegy exchange relationship with said beam; c. a coupled cavity slow wave circuit disposed along said beam path downstream of said ring and bar circuit and in energy exchange relationship with said beam; d. said ring and bar circuit being in direct microwave energy exchange relationship with said coupled cavity circuit by protruding into a first cavity of said coupled cavity circuit.
Claim 2
Independent Claim
101 words
A device for progressively interacting micrOwave energy with an electron beam comprising: a. means for projecting a beam of electrons over an elongted beam path; b. a ring and bar slow wave circuit disposed along said beam path in enegy exchange relationship with said beam; c. a coupled cavity slow wave circuit disposed along said beam path downstream of said ring and bar circuit and in energy exchange relationship with said beam; d. said ring and bar circuit being in direct microwave energy exchange relationship with said coupled cavity circuit by protruding into a first cavity of said coupled cavity circuit.
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) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |