US3795833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ion beam deflection system
Assignee: Raytheon Co
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Filing: 1972-05-25
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Granted: 1974-03-05
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Expires: 1992-05-25
Abstract
Abstract The accel electrode in a Kaufman-type of electron bombardment ion thrustor is created by interengaging panels of insulative material. These panels are angularly related to each other to define the openings of the accel electrode. Conductive blades are installed in each opening for electrostatic deflection of the beamlet issuing therethrough.
Inventors
- 👤 H King
- 👤 D Schnelker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:06
CPC Classifications
F; F03; F03H; F03H1/00; F03H1/0037; F03H1/0043; G; G21; G21K; G21K1/00; G21K1/08; G21K1/087; H; H01; H01J; H01J27/00; H01J27/02; H01J27/08
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
164 words
An ion beam device, said ion beam device having a housing having an axis, an accelerator electrode positioned downstream with respect to said housing on said axis, means for supplying a negative potential to said accelerator electrode as an ion beam accelerating voltage for accelerating the ions generally along said axis, the improvement comprising: said accelerator electrode being comprised of a plurality of intersecting insulative panel members positioned so that openings through said electrode are formed by the intersection of said panel members intersecting in groups of at least three; conductive blades lying against said panel members so that said accelerator electrode openingS are defined between said blades, there being at least three blades in each of said openings, each of said openings being bounded on all sides by blades, each of said blades bounding a particular opening being electrically separate so that, upon application of differential voltage between blades in said openings, the ion beam can be electrostatically deflected in a selected direction.
Claim 2
Dependent Claim
164 words
An ion beam device, said ion beam device having a housing having an axis, an accelerator electrode positioned downstream with respect to said housing on said axis, means for supplying a negative potential to said accelerator electrode as an ion beam accelerating voltage for accelerating the ions generally along said axis, the improvement comprising: said accelerator electrode being comprised of a plurality of intersecting insulative panel members positioned so that openings through said electrode are formed by the intersection of said panel members intersecting in groups of at least three; conductive blades lying against said panel members so that said accelerator electrode openingS are defined between said blades, there being at least three blades in each of said openings, each of said openings being bounded on all sides by blades, each of said blades bounding a particular opening being electrically separate so that, upon application of differential voltage between blades in said openings, the ion beam can be electrostatically deflected in a selected direction.
Claim 3
Dependent Claim
71 words
The ion beam device of claim 1 wherein a plurality of first insulative panels extend in a first direction, and a plurality of second insulative panels extend in a second direction, said first insulative panels having notches therein for engagement on said second insulative panels, and said second insulative panels having notches therein for engagement on said first insulative panels so that said panels intersect to define the plurality of openings.
Claim 4
Dependent Claim
43 words
The ion beam device of claim 2 wherein said conductive blades comprise first blades lying adjacent said first panels and second blades lying adjacent said second panels, said blades being notched so that none of said first blades electrically contact said second blades.
Claim 5
Dependent Claim
24 words
The ion beam device of claim 3 wherein said blades are formed as a segment of a cylindrical tube in each of said openings.
Claim 6
Dependent Claim
24 words
The ion beam device of claim 4 wherein said cylindrical tube segments in one of said openings between said panels have substantially coaxial axes.
Claim 7
Dependent Claim
71 words
The ion beam device of claim 1 wherein a plurality of first conductive blades extend in a first direction, and a plurality of second conductive blades extend in a second direction, said first conductive blades having notches therein for engagement around said second conductive blades, and said second conductive blades having notches therein for engagement around said first conductive blades so that said blades intersect to define the plurality of openings.
Claim 8
Dependent Claim
24 words
The ion beam device of claim 6 wherein said blades are formed as a segment of a cylindrical tube in each of said openings.
Claim 9
Dependent Claim
24 words
The ion beam device of claim 7 wherein said cylindrical tube segments in one of said openings between said panels have substantially coaxial axes.
Claim 10
Dependent Claim
117 words
An accelerator electrode for an ion beam device, said accelerator electrode comprising a plurality of first panels and a plurality of second panels arranged so that said panels intersect each other, said first panels being recessed to receive said second panels to retain said second panels and to define openings between said first and second panels; accelerator and deflection blades positioned against said panels and lying next to said openings, said blades in each opening being electrically separate so that an electric field can be provided therebetween so as to act upon an ion beam passing through said accelerator electrode, there being a sufficient number of blades to selectively deflect the beam within a conically defined direction.
Claim 11
Dependent Claim
117 words
An accelerator electrode for an ion beam device, said accelerator electrode comprising a plurality of first panels and a plurality of second panels arranged so that said panels intersect each other, said first panels being recessed to receive said second panels to retain said second panels and to define openings between said first and second panels; accelerator and deflection blades positioned against said panels and lying next to said openings, said blades in each opening being electrically separate so that an electric field can be provided therebetween so as to act upon an ion beam passing through said accelerator electrode, there being a sufficient number of blades to selectively deflect the beam within a conically defined direction.
Claim 12
Dependent Claim
146 words
An accelerator electrode for an ion beam device, said accelerator electrode comprising a plurality of first panels and a plurality of second panels arranged so that said panels intersect each other, said first panels being recessed to receive said second panels to retain said second panels and to define openings between said first and second panels; conductive accelerator and deflection blades positioned against said panels and lying next to said openings, said conductive blades comprising first blades lying adjacent said first panels and second blades lying adjacent said second panels, said blades being notched so that none of said first blades electrically contact said second blades, said blades being connectable to a source of electrical potential so as to act upon an ion beam passing through said accelerator electrode, there being a sufficient number of blades to selectively deflect the beam within a conically defined direction.
Claim 13
Dependent Claim
146 words
An accelerator electrode for an ion beam device, said accelerator electrode comprising a plurality of first panels and a plurality of second panels arranged so that said panels intersect each other, said first panels being recessed to receive said second panels to retain said second panels and to define openings between said first and second panels; conductive accelerator and deflection blades positioned against said panels and lying next to said openings, said conductive blades comprising first blades lying adjacent said first panels and second blades lying adjacent said second panels, said blades being notched so that none of said first blades electrically contact said second blades, said blades being connectable to a source of electrical potential so as to act upon an ion beam passing through said accelerator electrode, there being a sufficient number of blades to selectively deflect the beam within a conically defined direction.
Claim 14
Dependent Claim
24 words
The ion beam device of claim 10 wherein said blades are formed as a segment of a cylindrical tube in each of said openings.
Claim 15
Dependent Claim
26 words
The ion beam device of claim 11 whereiN each of said cylindrical tube segments in one of said openings between said panels has substantially coaxial axes.
Claim 16
Dependent Claim
135 words
An ion beam device, said ion beam device having a housing having an axis, an accelerator electrode positioned downstream with respect to said housing on said axis, means for supplying a negative potential to said accelerator electrode as an ion beam accelerating voltage for accelerating the ions generally along said axis, the improvement comprising: said accelerator electrode being comprised of a plurality of intersecting interengaged conductive blades, so that said accelerator electrode openings are defined between said blades, there being at least three blades defining each of said openings, each of said openings being bounded on all sides by blades, each of said blades bounding a particular opening being electrically separate, so that, upon application of differential voltage between said blades defining an opening, the ion beam can be electrostatically deflected in a selected direction.
Claim 17
Dependent Claim
135 words
An ion beam device, said ion beam device having a housing having an axis, an accelerator electrode positioned downstream with respect to said housing on said axis, means for supplying a negative potential to said accelerator electrode as an ion beam accelerating voltage for accelerating the ions generally along said axis, the improvement comprising: said accelerator electrode being comprised of a plurality of intersecting interengaged conductive blades, so that said accelerator electrode openings are defined between said blades, there being at least three blades defining each of said openings, each of said openings being bounded on all sides by blades, each of said blades bounding a particular opening being electrically separate, so that, upon application of differential voltage between said blades defining an opening, the ion beam can be electrostatically deflected in a selected direction.
Claim 18
Dependent Claim
103 words
An accelerator electrode for an ion beam device, said accelerator electrode comprising a first plurality of at least three electrically separate conductive accelerator and deflection electrode blades intersecting to define a first beamlet opening through said accelerator electrode, at least some of said blades being notched and interengaged with respect to another of said blades; a second plurality of at least three electrically separate conductive accelerator and deflection electrode blades intersecting to define a second beamlet opening through said accelerator electrode adjacent said first beamlet opening, said blades on adjacent sides of said first and second openings being electrically separate from each other.
Claim 19
Dependent Claim
103 words
An accelerator electrode for an ion beam device, said accelerator electrode comprising a first plurality of at least three electrically separate conductive accelerator and deflection electrode blades intersecting to define a first beamlet opening through said accelerator electrode, at least some of said blades being notched and interengaged with respect to another of said blades; a second plurality of at least three electrically separate conductive accelerator and deflection electrode blades intersecting to define a second beamlet opening through said accelerator electrode adjacent said first beamlet opening, said blades on adjacent sides of said first and second openings being electrically separate from each other.
Claim 20
Dependent Claim
57 words
The accelerator electrode of claim 14 wherein each of said first and second adjacent beamlet openings is defined by four intersecting electrode blades, said blades between said adjacent openings being electrically separate, and said blades intersecting with said adjacent electrically separate blades being the same blades extending to define sides of said first and second beamlet openings.
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) | 1977-03-04 | 1977-09-03 | 1978-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-04 | 1981-09-03 | 1982-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-04 | 1985-09-03 | 1986-03-05 | $7700.00 | Window Closed / Lapsed |