Patent EP1042997A1 successfully refreshed from Google Patents.
US3109931A
Expired / Lapsed
US
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Method and apparatus for uniformly irradiating an object with electrons
Assignee: General Electric Co
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Filing: 1960-06-20
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Granted: 1963-11-05
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Expires: 1980-06-20
Abstract
No abstract record available.
Inventors
- 👤 Jr James Albert Knowlton
- 👤 Arndt Richard Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:18
CPC Classifications
H; H01; H01J; H01J33/00; G; G21; G21K; G21K1/00; G21K1/08; G21K1/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
87 words
A METHOD FOR PROVIDING SUBSTANTIALLY UNIFORM CHARGED PARTICLE IRRADIATION ACROSS AN OBJECT TO BE IRRADIATED COMPRISING THE STEPS OF: PLACING THE OBJECT TO BE IRRADIATED AT ITS CLOSEST POINT A DISTANCE FROM THE OUTPUT WINDOW OF A CHARGED PARTICLE GENERATING TUBE; AND DEFLECTING THE CHARGED PARTICLE BEAM OF SAID TUBE IN A PATTERN OVER SAID WINDOW TO FORM A NON-UNIFORM CHARGED PARTICLE DENSITY DISTRIBUTION IN THE PLANE OF SAID WINDOW HAVING TWO MAXIMA SPACED FROM EACH OTHER AND ON OPPOSITE SIDES OF THE MIDPOINT OF SAID DISTRIBUTION.
Claim 2
Independent Claim
87 words
A METHOD FOR PROVIDING SUBSTANTIALLY UNIFORM CHARGED PARTICLE IRRADIATION ACROSS AN OBJECT TO BE IRRADIATED COMPRISING THE STEPS OF: PLACING THE OBJECT TO BE IRRADIATED AT ITS CLOSEST POINT A DISTANCE FROM THE OUTPUT WINDOW OF A CHARGED PARTICLE GENERATING TUBE; AND DEFLECTING THE CHARGED PARTICLE BEAM OF SAID TUBE IN A PATTERN OVER SAID WINDOW TO FORM A NON-UNIFORM CHARGED PARTICLE DENSITY DISTRIBUTION IN THE PLANE OF SAID WINDOW HAVING TWO MAXIMA SPACED FROM EACH OTHER AND ON OPPOSITE SIDES OF THE MIDPOINT OF SAID DISTRIBUTION.
Claim 3
Dependent Claim
77 words
CHARGED PARTICLE BEAM GENERATING APPARATUS COMPRISING: FIRST MEANS FOR GENERATING AND ACCELERATING CHARGED PARTICLES AND CAUSING SAID CHARGED PARTICLES TO EXIT FROM SAID APPARATUS THROUGH A PLANE AT ONE END OF SAID APPARATUS; AND SECOND MEANS COMPRISING CHARGED PARTICLE BEAM DEFLECTING MEANS FOR SHAPING THE CHARGED PARTICLE DENSITY DISTRIBUTION IN SAID PLANE, INTEGRATED OVER A FINITE PERIOD OF TIME, TO HAVE TWO MAXIMA SPACED FROM EACH OTHER AND ON OPPOSITE SIDES OF THE MIDPOINT OF SAID DISTRIBUTION.
Claim 4
Dependent Claim
77 words
CHARGED PARTICLE BEAM GENERATING APPARATUS COMPRISING: FIRST MEANS FOR GENERATING AND ACCELERATING CHARGED PARTICLES AND CAUSING SAID CHARGED PARTICLES TO EXIT FROM SAID APPARATUS THROUGH A PLANE AT ONE END OF SAID APPARATUS; AND SECOND MEANS COMPRISING CHARGED PARTICLE BEAM DEFLECTING MEANS FOR SHAPING THE CHARGED PARTICLE DENSITY DISTRIBUTION IN SAID PLANE, INTEGRATED OVER A FINITE PERIOD OF TIME, TO HAVE TWO MAXIMA SPACED FROM EACH OTHER AND ON OPPOSITE SIDES OF THE MIDPOINT OF SAID DISTRIBUTION.
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) | 1966-11-04 | 1967-05-06 | 1967-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-04 | 1971-05-06 | 1971-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-04 | 1975-05-06 | 1975-11-05 | $7700.00 | Window Closed / Lapsed |