US3786275A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit and method for arc protection of linear beam devices
Assignee: Westinghouse Electric Corp
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Filing: 1972-07-28
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Granted: 1974-01-15
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Expires: 1992-07-28
Abstract
Abstract A method and circuit for protecting a linear beam device such as a klystron from damage due to cathode-to-body member arcing. The linear beam device is supplied with body member and collector electrode voltages from serially connected power supplies which are both referenced to the cathode electrode. A diode poled to block current flow away from the collector electrode is provided between the collector electrode and the interconnection or junction between the power supplies. The diode thus prevents high current flow from the collector supply resulting from a cathodeto-body member arc.
Inventors
- 👤 A Quesinberry
- 👤 E Lawson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:50
CPC Classifications
H; H02; H02H; H02H7/00; H02H7/20; H01; H01J; H01J23/00
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
122 words
A power supply for a linear beam device including an anode electrode, a cathode electrode and a body member comprising: a first power supply means comprising a large storage capacitor connected between the anode electrode and cathode electrode of the linear beam device and means for supplying charge to storage capacitor; a second power supply means connected between the anode electrode and body member of the linear beam device, said first and second power supply means being connected in series aiding between the cathode electrode and the body member of the linear beam device; and, means for preventing current flow from a discharge of said storage capacitor to the body member of the linear beam device through the second power supply means.
Claim 2
Dependent Claim
122 words
A power supply for a linear beam device including an anode electrode, a cathode electrode and a body member comprising: a first power supply means comprising a large storage capacitor connected between the anode electrode and cathode electrode of the linear beam device and means for supplying charge to storage capacitor; a second power supply means connected between the anode electrode and body member of the linear beam device, said first and second power supply means being connected in series aiding between the cathode electrode and the body member of the linear beam device; and, means for preventing current flow from a discharge of said storage capacitor to the body member of the linear beam device through the second power supply means.
Claim 3
Dependent Claim
39 words
The power supply of claim 1 wherein said means for preventing current flow from the anode electrode to the body member includes a diode having the cathode electrode thereof connected to the anode electrode of the linear beam device.
Claim 4
Dependent Claim
12 words
The power supply of claim 2 wherein said diode is a semiconductor.
Claim 5
Dependent Claim
27 words
The power supply of claim 1 wherein the voltage of said first power supply means is substantially greater than the voltage of said second power supply means.
Claim 6
Dependent Claim
25 words
The power supply of claim 1 including a current limiting element connected between the cathode electrode and the body member of the linear beam device.
Claim 7
Dependent Claim
55 words
The power supply of claim 5 including a capacitor connected between the anode electrode and the cathode electrode of the linear beam device; and, wherein said second power supply means includes low pass filter means, said current flow preventing means being operative to prevent the discharge of said capacitor through said low pass filter means.
Claim 8
Dependent Claim
86 words
Apparatus comprising: a linear beam device including an anode electrode, a cathode electrode and a body member; power supply means connected between the cathode electrode and the body member of said linear beam device; circuit means for applying a portIon of the voltage of said power supply means between the cathode electrode and the anode electrode of said linear beam device; and, means for preventing current flow from the anode electrode to the body member of said linear beam device through the said power supply means.
Claim 9
Dependent Claim
86 words
Apparatus comprising: a linear beam device including an anode electrode, a cathode electrode and a body member; power supply means connected between the cathode electrode and the body member of said linear beam device; circuit means for applying a portIon of the voltage of said power supply means between the cathode electrode and the anode electrode of said linear beam device; and, means for preventing current flow from the anode electrode to the body member of said linear beam device through the said power supply means.
Claim 10
Dependent Claim
38 words
The apparatus of claim 7 wherein said means for preventing current flow from the anode electrode to the body member includes a diode having the cathode electrode thereof connected to the anode electrode of the linear beam device.
Claim 11
Dependent Claim
37 words
The apparatus of claim 8 wherein the portion of the voltage applied between the cathode electrode and the anode electrode of said linear beam device is substantially less than the total voltage of said power supply means.
Claim 12
Dependent Claim
30 words
The apparatus of claim 9 including current limiting means connected between the cathode electrode and the body member of said linear beam device; and, wherein said diode is a semiconductor.
Claim 13
Independent Claim
100 words
A method for limiting the current from a power supply upon arcing between the cathode electrode and the body member of a linear beam device comprising the steps of: a. applying the entire voltage of the power supply between the cathode electrode and the body member of the linear beam device; b. applying a significantly smaller portion of the voltage of the power supply between the cathode electrode and the anode electrode of the linear beam device; and, c. blocking current flow from the anode electrode to the body member of the linear beam device through the power supply means.
Claim 14
Independent Claim
100 words
A method for limiting the current from a power supply upon arcing between the cathode electrode and the body member of a linear beam device comprising the steps of: a. applying the entire voltage of the power supply between the cathode electrode and the body member of the linear beam device; b. applying a significantly smaller portion of the voltage of the power supply between the cathode electrode and the anode electrode of the linear beam device; and, c. blocking current flow from the anode electrode to the body member of the linear beam device through the power supply means.
Claim 15
Independent Claim
103 words
A method of limiting the cathode electrode to body member arcing current of a linear beam device comprising the steps of: a. applying a first voltage between an anode electrode and the cathode electrode of the the linear beam device; b. applying a second voltage between the anode electrode and the body member of the linear beam device in series aiding with the first voltage applied between the cathode electrode and the anode electrode of the linear beam device; and, c. preventing current flow exteriorly of the linear beam device from the anode electrode to the body member of the linear beam device.
Claim 16
Independent Claim
103 words
A method of limiting the cathode electrode to body member arcing current of a linear beam device comprising the steps of: a. applying a first voltage between an anode electrode and the cathode electrode of the the linear beam device; b. applying a second voltage between the anode electrode and the body member of the linear beam device in series aiding with the first voltage applied between the cathode electrode and the anode electrode of the linear beam device; and, c. preventing current flow exteriorly of the linear beam device from the anode electrode to the body member of the linear beam 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) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |