Patent US3604209A successfully refreshed from Google Patents.
US3604209A
Expired / Lapsed
US
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Ion beam deflection system
Assignee: Raytheon Co
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Filing: 1968-12-23
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Granted: 1971-09-14
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Expires: 1988-12-23
Abstract
Abstract An ion beam device has a plurality of laterally spaced perforated accelerator electrodes, with the electrodes connected to different negative potentials so that ions discharged out of the perforations along the separating line are deflected. Preferably, these perforations along the separating line are equipped with half-cylindrical tubes to enhance the electrostatic deflection of the beamlets passing through the apertures. Thus, a net deflection of the discharge ion beam is obtained.
Inventors
- 👤 Harry J King
- 👤 James W Ward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:08
CPC Classifications
F; F03; F03H; F03H1/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
118 words
An ion beam device, said ion beam device having a housing having an axis, the improvement comprising: first and second electrodes secured to said housing, said first and second electrodes being laterally spaced in a direction perpendicular to said housing axis and having adjacent edges, perforations in said first and second electrodes including perforations intersecting the laterally spaced adjacent edges of said first and second electrodes so that said perforations along said adjacent electrode edges form perforations defined in part by said first electrode and defined in part by said second electrode so that upon application of different voltages to said first and second electrodes, ion beams passing through said perforations along said adjacent electrode edges are deflected.
Claim 2
Dependent Claim
118 words
An ion beam device, said ion beam device having a housing having an axis, the improvement comprising: first and second electrodes secured to said housing, said first and second electrodes being laterally spaced in a direction perpendicular to said housing axis and having adjacent edges, perforations in said first and second electrodes including perforations intersecting the laterally spaced adjacent edges of said first and second electrodes so that said perforations along said adjacent electrode edges form perforations defined in part by said first electrode and defined in part by said second electrode so that upon application of different voltages to said first and second electrodes, ion beams passing through said perforations along said adjacent electrode edges are deflected.
Claim 3
Dependent Claim
75 words
The ion beam device of claim 1 wherein a plurality of first capacitive deflection plates are secured to said first electrode adjacent said perforations along the edge thereof and a plurality of second capacitive deflection plates are positioned on said second electrode adjacent said perforations along the edge thereof so that the perforations along the adjacent edges of said electrodes have a greater length along saId axis than other perforations away from said adjacent edges.
Claim 4
Dependent Claim
43 words
The ion beam device of claim 2 wherein said perforations are circular and said deflection plates are substantially tubular hemicylinders positioned to substantially define a circular opening of the same diameter as the perforations in the body of said first and second electrodes.
Claim 5
Dependent Claim
27 words
The ion beam device of claim 1 wherein said first and second electrodes are separated at a space which substantially lies on a diameter intersecting said axis.
Claim 6
Dependent Claim
31 words
The ion beam device of claim 1 wherein said first and second electrodes are separated at a space which lies substantially at right angles to a diameter perpendicular to said axis.
Claim 7
Dependent Claim
41 words
The ion beam device of claim 5 wherein there are third and fourth electrodes, said third and fourth electrodes being separated from said first electrode by a space which lies substantially 30* with respect to the diameter defined in claim 5.
Claim 8
Dependent Claim
26 words
The ion beam device of claim 6 wherein the spaces laterally separating said second, third and fourth electrodes from said first electrode intersect with one another.
Claim 9
Dependent Claim
23 words
The ion beam device of claim 6 wherein the spaces separating said second, third, and fourth electrodes from said first electrode are nonintersecting.
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) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |