Patent US3274436A successfully refreshed from Google Patents.
US3274436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ion source with selective hot or cold cathode
Assignee: Individual
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Filing: 1963-01-23
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Granted: 1966-09-20
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Expires: 1983-01-23
Abstract
No abstract record available.
Inventors
- 👤 Reich Gunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:17
CPC Classifications
H; H01; H01J; H01J49/00; H01J49/02; H01J49/10; H01J49/102
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
200 words
AN ION BEAM APPARATUS COMPRISING AN ION SOURCE HAVING A HOLLOW OPEN ENDED CYLINDRICAL, ANODE ELECTRODE, AN ION BEAM UTILIZING DEVICE POSITIONED ADJACENT ONE OPEN END OF SAID HOLLOW OPEN ENDED CYLINDRICAL ANODE ELECTRODE AND INCLUDING AN ION COLLECTOR ELECTRODE ADAPTED TO COLLECT IONS TRANSMITTED BY SAID ION SOURCE, A THERMIONIC CATHODE ELECTRODE POSITIONED ADJACENT THE OPPOSITE OPEN END OF SAID HOLLOW OPEN ENDED CYLINDRICAL ANODE ELECTRODE, SAID ION SOURCE FURTHER INCLUDING A FIRST PLATE ELECTRODE POSITIONED BETWEEN SAID ION BEAM UTILIZING DEVICE AND SAID CYLINDRICAL ANODE ELECTRODE AND A SECOND PLATE ELECTRODE POSITIONED BETWEEN SAID THERMIONIC CATHODE ELECTRODE AND SAID HOLLOW CYLINDRICAL ANODE ELECTRODE, SAID FIRST PLATE ELECTRODE HAVING AN APERTURE ADAPTED TO TRANSMIT IONS PASSING BETWEEN SAID CYLINDRICAL ANODE ELECTRODE AND SAID ION BEAM UTILIZING DEVICE, SAID SECOND PLATE ELECTRODE HAVING AN APERTURE ADAPTED TO TRANSMIT ELECTRONS BETWEEN SAID THERMIONIC CATHODE ELECTRODE AND SAID CYLINDRICAL ANODE ELECTRODE, MAGNETIC MEANS ADAPTED TO APPLY A MAGNETIC FIELD THROUGH SAID CYLINDRICAL ANODE ELECTRODE, AND VARIABLE POWER SUPPLY MEANS CONNECTED TO SAID ION SOURCE AND ADAPTED TO PERMIT SELECTIVE ENERGIZATION OF SAID ION SOURCE AS EITHER AN ION FOCUSING ANODE FOR SAID THERMIONIC CATHODE ELECTRODE OR AS A COLD CATHODE ION SOURCE.
Claim 2
Dependent Claim
200 words
AN ION BEAM APPARATUS COMPRISING AN ION SOURCE HAVING A HOLLOW OPEN ENDED CYLINDRICAL, ANODE ELECTRODE, AN ION BEAM UTILIZING DEVICE POSITIONED ADJACENT ONE OPEN END OF SAID HOLLOW OPEN ENDED CYLINDRICAL ANODE ELECTRODE AND INCLUDING AN ION COLLECTOR ELECTRODE ADAPTED TO COLLECT IONS TRANSMITTED BY SAID ION SOURCE, A THERMIONIC CATHODE ELECTRODE POSITIONED ADJACENT THE OPPOSITE OPEN END OF SAID HOLLOW OPEN ENDED CYLINDRICAL ANODE ELECTRODE, SAID ION SOURCE FURTHER INCLUDING A FIRST PLATE ELECTRODE POSITIONED BETWEEN SAID ION BEAM UTILIZING DEVICE AND SAID CYLINDRICAL ANODE ELECTRODE AND A SECOND PLATE ELECTRODE POSITIONED BETWEEN SAID THERMIONIC CATHODE ELECTRODE AND SAID HOLLOW CYLINDRICAL ANODE ELECTRODE, SAID FIRST PLATE ELECTRODE HAVING AN APERTURE ADAPTED TO TRANSMIT IONS PASSING BETWEEN SAID CYLINDRICAL ANODE ELECTRODE AND SAID ION BEAM UTILIZING DEVICE, SAID SECOND PLATE ELECTRODE HAVING AN APERTURE ADAPTED TO TRANSMIT ELECTRONS BETWEEN SAID THERMIONIC CATHODE ELECTRODE AND SAID CYLINDRICAL ANODE ELECTRODE, MAGNETIC MEANS ADAPTED TO APPLY A MAGNETIC FIELD THROUGH SAID CYLINDRICAL ANODE ELECTRODE, AND VARIABLE POWER SUPPLY MEANS CONNECTED TO SAID ION SOURCE AND ADAPTED TO PERMIT SELECTIVE ENERGIZATION OF SAID ION SOURCE AS EITHER AN ION FOCUSING ANODE FOR SAID THERMIONIC CATHODE ELECTRODE OR AS A COLD CATHODE ION SOURCE.
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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |