US3223885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization circuit for electron beam apparatus
Assignee: General Electric Co
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Filing: 1963-04-29
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Granted: 1965-12-14
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Expires: 1983-04-29
Abstract
No abstract record available.
Inventors
- 👤 Lynn H Stauffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:07
CPC Classifications
B; B23; B23K; B23K15/00; B23K15/10; H; H01; H01J; H01J37/00; H01J37/02; H01J37/04; H01J37/06; H01J37/077; H01J37/21; H01J37/24; H01J37/243; H01J37/30; H01J37/304
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
THE COMBINATION OF A CATHODE COMPRISING A HOLLOW PERFORATED STRUCTURE ADAPTED FOR USE IN AN IONIZABLE GASEOUS MEDIUM AND TO BE OPERATED AT A HIGH NEGATIVE POTENTIAL RELATIVE TO THE ENCLOSURE OF SAID MEDIUM SUFFICIENT TO PRODUCE A PLASMA WITHIN THE CATHODE, SAID CATHODE HAVING AN APERTURE THROUGH WHICH AN ELECTRON BEAM ISSUES FROMTHE PLASMA, WITH A CONTROL ELECTRODE COMPRISING A STRUCTURE BEING POSITIONED WITHIN SAID CATHODE AND ELECTRICALLY INSULATED THEREFROM, SAID CONTROL ELECTRODE HAVING AN APERATURE ALIGNED WITH SAID CATHODE APERTURE THROUGH WHICH SAID BEAM PASSES WHEREBY THE MAGNITUDE OF CURRENT IN SAID BEAM MAY BE VARIED BY VARYING THE POTENTIAL BETWEEN SAID CONTROL ELECTRODE AND CATHODE, AND MEANS CONNECTED IN AN ELECTRICAL CIRCUIT WHICH COUPLES THE CATHODE AND CONTROL ELECTRODE FOR AUTOMATICALLY REGULATING THE MAGNITUDE OF THE BEAM CURRENT.
Claim 2
Dependent Claim
131 words
THE COMBINATION OF A CATHODE COMPRISING A HOLLOW PERFORATED STRUCTURE ADAPTED FOR USE IN AN IONIZABLE GASEOUS MEDIUM AND TO BE OPERATED AT A HIGH NEGATIVE POTENTIAL RELATIVE TO THE ENCLOSURE OF SAID MEDIUM SUFFICIENT TO PRODUCE A PLASMA WITHIN THE CATHODE, SAID CATHODE HAVING AN APERTURE THROUGH WHICH AN ELECTRON BEAM ISSUES FROMTHE PLASMA, WITH A CONTROL ELECTRODE COMPRISING A STRUCTURE BEING POSITIONED WITHIN SAID CATHODE AND ELECTRICALLY INSULATED THEREFROM, SAID CONTROL ELECTRODE HAVING AN APERATURE ALIGNED WITH SAID CATHODE APERTURE THROUGH WHICH SAID BEAM PASSES WHEREBY THE MAGNITUDE OF CURRENT IN SAID BEAM MAY BE VARIED BY VARYING THE POTENTIAL BETWEEN SAID CONTROL ELECTRODE AND CATHODE, AND MEANS CONNECTED IN AN ELECTRICAL CIRCUIT WHICH COUPLES THE CATHODE AND CONTROL ELECTRODE FOR AUTOMATICALLY REGULATING THE MAGNITUDE OF THE BEAM CURRENT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |