US4521719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ion beam gun
Assignee: TECHNICS EUROPA A GERMAN CORP GmbH
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Filing: 1982-08-27
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Granted: 1985-06-04
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Expires: 2002-08-27
Abstract
Abstract The invention relates to an ion beam gun having a pair of electrodes for applying a high-frequency high voltage to ionize an ionization gas, the ions produced being extracted by an extraction electrode arranged behind the pair of electrodes in the direction of the ion beam (FIG. 1).
Inventors
- 👤 Gerhard Liebel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:51
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/02; H01J37/04; H01J37/08; H01J27/00; H01J27/02; H01J27/16
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
122 words
Ion beam gun comprising an ionization chamber which is provided with an ionization gas inlet and an ionization gas outlet, two ionization electrodes spaced from and in opposition to each other in the direction of the ion beam for ionizing the ionization gas; an extraction electrode permeable to the ion beams, said extraction electrode being arranged behind said two ionization electrodes in the direction of the ion beam; means for applying a high frequency and a high voltage to said two ionization electrodes, one of said two ionization electrodes, disposed between the other of said two ionization electrodes and said electrodes, and said extraction electrode each being provided with passages arranged in alignment with each other for passage of the ion beam.
Claim 2
Dependent Claim
122 words
Ion beam gun comprising an ionization chamber which is provided with an ionization gas inlet and an ionization gas outlet, two ionization electrodes spaced from and in opposition to each other in the direction of the ion beam for ionizing the ionization gas; an extraction electrode permeable to the ion beams, said extraction electrode being arranged behind said two ionization electrodes in the direction of the ion beam; means for applying a high frequency and a high voltage to said two ionization electrodes, one of said two ionization electrodes, disposed between the other of said two ionization electrodes and said electrodes, and said extraction electrode each being provided with passages arranged in alignment with each other for passage of the ion beam.
Claim 3
Dependent Claim
27 words
Ion beam gun according to claim 1, characterized in that the first electrode (11, 21) in the direction of the ion beam is connected as the earth.
Claim 4
Dependent Claim
38 words
Ion beam gun according to claim 1, characterized in that the extraction electrode (23) is arranged so that it is displaceable with respect to its distance to the second electrode (22) in the direction of the ion beam.
Claim 5
Dependent Claim
27 words
Ion beam gun according to claim 1, characterized in that the second electrode (12; 22) in the direction of the ion beam is connected as the earth.
Claim 6
Dependent Claim
38 words
Ion beam gun according to claim 2, characterized in that the extraction electrode (23) is arranged so that it is displaceable with respect to its distance to the second electrode (22) in the direction of the ion beam.
Claim 7
Dependent Claim
38 words
Ion beam gun according to claim 4, characterized in that the extraction electrode (23) is arranged so that it is displaceable with respect to its distance to the second electrode (22) in the direction of the ion beam.
References Cited (Backward Citations)
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US3956666A
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US4220545A
Cited
US4339691A
Cited
US4367429A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-06-03 | 1988-12-03 | 1989-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-03 | 1992-12-03 | 1993-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-03 | 1996-12-03 | 1997-06-04 | $7700.00 | Window Closed / Lapsed |