US3176129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and system for electron irradiation of materials
Assignee: General Electric Co
•
Filing: 1961-10-23
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Granted: 1965-03-30
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Expires: 1981-10-23
Abstract
No abstract record available.
Inventors
- 👤 Elliott J Lawton
- 👤 Anatole M Gurewitsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:11
CPC Classifications
H; H01; H01J; H01J33/00; G; G21; G21K; G21K5/00; G21K5/04; Y; Y10; Y10S; Y10S148/00; Y10S148/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
IN AN ELECTRON BEAM GENERATOR SYSTEM FOR IRRADIATING MATERIALS, AN ELECTRON GUN FOR PRODUCING AN ELECTRON BEAM AND INCLUDING A GRID ELECTRODE, AN ELECTRON TRANSMISSIVE WINDOW SEPARATING SAID GUN AND SAID MATERIALS, MEANS FOR APPLYING A BIAS VOLTAGE TO SAID GRID ELECTRODE FOR PRODUCING SPACE CHARGE LIMITED OPERATION OF SAID ELECTRON GUN, MEANS FOR ACCELERATING SAID ELECTRON BEAM WITH A VOLTAGE WHOSE MAGNITUDE VARIES AS A FUNCTION OF TIME DURING SUBSTANTIALLY ITS ENTIRE PERIOD OF OPERATION, AND MEANS FOR APPLYING A VARIABLE VOLTAGE TO SAID GRID ELECTRODE FOR CAUSING THE MAGNITUDE OF THE BEAM CURRENT TO VARY DURING SUBSTANTIALLY THE SAME PERIOD AND IN PROPORTION TO THE MAGNITUDE OF SAID ACCELERATION VOLTAGE.
Claim 2
Dependent Claim
112 words
IN AN ELECTRON BEAM GENERATOR SYSTEM FOR IRRADIATING MATERIALS, AN ELECTRON GUN FOR PRODUCING AN ELECTRON BEAM AND INCLUDING A GRID ELECTRODE, AN ELECTRON TRANSMISSIVE WINDOW SEPARATING SAID GUN AND SAID MATERIALS, MEANS FOR APPLYING A BIAS VOLTAGE TO SAID GRID ELECTRODE FOR PRODUCING SPACE CHARGE LIMITED OPERATION OF SAID ELECTRON GUN, MEANS FOR ACCELERATING SAID ELECTRON BEAM WITH A VOLTAGE WHOSE MAGNITUDE VARIES AS A FUNCTION OF TIME DURING SUBSTANTIALLY ITS ENTIRE PERIOD OF OPERATION, AND MEANS FOR APPLYING A VARIABLE VOLTAGE TO SAID GRID ELECTRODE FOR CAUSING THE MAGNITUDE OF THE BEAM CURRENT TO VARY DURING SUBSTANTIALLY THE SAME PERIOD AND IN PROPORTION TO THE MAGNITUDE OF SAID ACCELERATION VOLTAGE.
References Cited (Backward Citations)
GB874195A
Cited
US3066238A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |