US3227880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collimator for beams of high-velocity electrons
Assignee: BBC Brown Boveri AG Germany
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Filing: 1963-08-29
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Granted: 1966-01-04
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Expires: 1983-08-29
Abstract
No abstract record available.
Inventors
- 👤 Wideroe Rolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:07
CPC Classifications
G; G21; G21K; G21K1/00; G21K1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A HIGH-VELOCITY ELECTRON BEAM COLLIMATOR STRUCTURE COMPRISING, A COMPOSITE APERTURED BODY INCLUDING AT LEAST FIRST AND SECOND LAYERS DISPOSED IN FACE-TO-FACE RELATION, SAID LAYERS BEING PROVIDED WITH APERTURES IN AXIAL ALIGNMENT WITH THE BEAM AXIS AND THROUGH WHICH THE BEAM IS PASSED, SAID FIRST LAYER AT THE BEAM ENTRANCE SIDE TO SAID COLLIMATOR BEING MADE FROM A METAL HAVING A LOW ATOMIC NUMBER AND SAID SECOND LAYER AT THE BEAM EMERGENCE SIDE FROM SAID COLLIMATOR BEING MADE FROM A METAL HAVING A HIGH ATOMIC NUMBER, THE SURFACES DEFINING THE RESPECTIVE APERTURES IN SAID FIRST AND SECOND LAYERS HAVING A FRUSTOCONICAL CONFIGURATION DIVERGENT IN THE DIRECTION OF PASSAGE
Claim 2
Dependent Claim
107 words
A HIGH-VELOCITY ELECTRON BEAM COLLIMATOR STRUCTURE COMPRISING, A COMPOSITE APERTURED BODY INCLUDING AT LEAST FIRST AND SECOND LAYERS DISPOSED IN FACE-TO-FACE RELATION, SAID LAYERS BEING PROVIDED WITH APERTURES IN AXIAL ALIGNMENT WITH THE BEAM AXIS AND THROUGH WHICH THE BEAM IS PASSED, SAID FIRST LAYER AT THE BEAM ENTRANCE SIDE TO SAID COLLIMATOR BEING MADE FROM A METAL HAVING A LOW ATOMIC NUMBER AND SAID SECOND LAYER AT THE BEAM EMERGENCE SIDE FROM SAID COLLIMATOR BEING MADE FROM A METAL HAVING A HIGH ATOMIC NUMBER, THE SURFACES DEFINING THE RESPECTIVE APERTURES IN SAID FIRST AND SECOND LAYERS HAVING A FRUSTOCONICAL CONFIGURATION DIVERGENT IN THE DIRECTION OF PASSAGE
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) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |