Patent FR1273284A successfully refreshed from Google Patents.
Patent US3631282A successfully refreshed from Google Patents.
US3631282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Accelerating tube with heating means
Assignee: National Electrostatics Corp
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Filing: 1969-01-23
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Granted: 1971-12-28
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Expires: 1989-01-23
Abstract
Abstract The accelerating tube of the present invention is provided with means for continuously heating the tube while it is in operation. This has the surprising effect of greatly increasing the ability of the tube to withstand high voltages. Thus, an increased operating voltage may be employed when the tube is heated. The heating of the tube drives off condensed gases from the interior surfaces of the tube, while also preventing any condensation of residual gases upon such surfaces. Various means may be provided to heat the tube. It is particularly advantageous to subdivide the tube into tubular sections with separator electrodes or diaphragms therebetween. The ion beam passes within the tube through apertures in the separators. It is preferred to heat the separators by causing electrical currents to pass through the separators. The electrical currents are preferably supplied by a series of generators driven by an insulating shaft. Heat may also be supplied externally to the accelerating tube, by means of heating coils or lamps. Another arrangement is to heat the entire tank in which the tube is enclosed.
Inventors
- 👤 Raymond G Herb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:30
CPC Classifications
H; H05; H05H; H05H5/00; H01; H01J; H01J5/00; H01J5/02; H01J5/06
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
86 words
In a high-voltage accelerator, the combination comprising an elongated electrically insulating accelerating tube, source means connected to one end of said tube for directing a beam of charged particles, along said tube, means for producing a high voltage between said source means and the opposite end of said tube to accelerate the charged particles, heating means for heating said tube to an elevated temperature to enhance the ability of said tube to withstand high voltages, and means for insulating said heating means from said high voltage.
Claim 2
Dependent Claim
86 words
In a high-voltage accelerator, the combination comprising an elongated electrically insulating accelerating tube, source means connected to one end of said tube for directing a beam of charged particles, along said tube, means for producing a high voltage between said source means and the opposite end of said tube to accelerate the charged particles, heating means for heating said tube to an elevated temperature to enhance the ability of said tube to withstand high voltages, and means for insulating said heating means from said high voltage.
Claim 3
Dependent Claim
41 words
The combination of claim 1, in which said heating means include electrically conductive separators in said tube, and means for passing electrical currents along said separators to produce electrical heating thereof, said tube having electrically insulating sections interspersed between said separators.
Claim 4
Dependent Claim
21 words
The combination of claim 1, in which said heating Means include a heating coil for heating said tube by radiant heat.
Claim 5
Dependent Claim
21 words
The combination of claim 1, in which said heating means include a heat lamp for heating said tube by radiant heat.
Claim 6
Dependent Claim
22 words
The combination of claim 1, in which said heating means include a heating element spaced from said tube to produce heating thereof.
Claim 7
Dependent Claim
23 words
The combination of claim 5, including heat insulation disposed around said tube and said heating element to minimize the loss of heat therefrom.
Claim 8
Dependent Claim
28 words
The combination of claim 1, including a tank surrounding said tube and spaced outwardly therefrom, said heating means comprising a heating element between said tank and said tube.
Claim 9
Dependent Claim
20 words
The combination of claim 7, including heat insulation around said tank to conserve the heat generated by said heating element.
Claim 10
Dependent Claim
24 words
The combination of claim 1, including a tank surrounding said tube and spaced outwardly therefrom, said heating means comprising means for heating said tank.
Claim 11
Dependent Claim
20 words
The combination of claim 9, including heat insulation around said tank and said heating means to reduce heat loss therefrom.
Claim 12
Dependent Claim
28 words
The combination of claim 1, including a plurality of apertured separators extending across said tube and spaced therealong, said tube having electrically insulating sections interspersed between said separators.
Claim 13
Dependent Claim
126 words
In a high-voltage accelerator, the combination comprising an accelerating tube having a plurality of tubular electrically insulating sections joined together end to end, a plurality of separators disposed between the successive sections to isolate the sections, a particle source connected to one end of said accelerating tube for directing a beam of charged particles along said accelerating tube, said separators having aligned openings therein to provide for the passage of the beam, means for producing a high voltage between the source and the opposite end of said tube for accelerating the charged particles, heating means for heating at least some of said separators to enhance the ability of said accelerating tube to withstand high voltages, and means for insulating said heating means from said high voltage.
Claim 14
Dependent Claim
126 words
In a high-voltage accelerator, the combination comprising an accelerating tube having a plurality of tubular electrically insulating sections joined together end to end, a plurality of separators disposed between the successive sections to isolate the sections, a particle source connected to one end of said accelerating tube for directing a beam of charged particles along said accelerating tube, said separators having aligned openings therein to provide for the passage of the beam, means for producing a high voltage between the source and the opposite end of said tube for accelerating the charged particles, heating means for heating at least some of said separators to enhance the ability of said accelerating tube to withstand high voltages, and means for insulating said heating means from said high voltage.
Claim 15
Dependent Claim
16 words
The combination of claim 12, in which said separators comprise metal plates disposed between said sections.
Claim 16
Dependent Claim
34 words
The combination of claim 12, in which said separators comprise electrically conductive members, said heating means comprising means for causing electrical currents to flow along said electrically conductive members to produce electrical heating thereof.
Claim 17
Dependent Claim
35 words
The combination of claim 12, in which said separators comprise metal plates disposed between said sections, said heating means comprising means for causing electrical currents to flow along said plates to produce electrical heating thereof.
Claim 18
Dependent Claim
94 words
The combination of claim 12, in which each separator comprises a conductive member extending across the inside of said tube between the adjacent sections, an annular mounting flange disposed between said adjacent sections, a pair of conductive leads extending outwardly from said conductive member to support said conductive member on said mounting flange, and at least one feedthrough insulator to carry one of said leads outwardly through said mounting flange, said heating means comprising means for causing an electrical current to flow through said leads and said conductive member to produce electrical heating thereof.
Claim 19
Dependent Claim
55 words
The combination of claim 12, in which said separators comprise conductive members disposed between said sections, said heating means comprising a plurality of electrical generators for causing currents to flow along said conductive members to produce electrical heating thereof, and insulating drive means extending between said generators and along said tube for driving said generators.
Claim 20
Dependent Claim
15 words
The combination of claim 17, including transformers connected between said generatorS and said conductive members.
Claim 21
Dependent Claim
20 words
The combination of claim 1, in which said heating means comprise heating elements adjacent said tube at spaced points therealong.
Claim 22
Dependent Claim
32 words
The combination of claim 19, including a plurality of electrical generators for energizing said heating elements, and insulating drive means extending between said generators and along said tube for driving said generators.
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) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |