US2755390A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detection of mixed radiation
Assignee: Texaco Development Corp
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Filing: 1952-08-06
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Granted: 1956-07-17
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Expires: 1972-08-06
Abstract
No abstract record available.
Inventors
- 👤 Charles F Teichmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:05
CPC Classifications
G; G01; G01V; G01V5/00; G01V5/04; G01V5/08; G01V5/10; G01V5/104; G01T; G01T1/00; G01T1/16; G01T1/17; G01T1/178
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
RADIATION DETECTION APPARATUS COMPRISING A HIGH GAIN PHOTO-ELECTRIC DEVICE HAVING A CATHODE WHICH IS CAPABLE OF EMITTING A GROUP OF PHOTO-ELECTRONS IN RESPONSE TO IRRADIATION WITH A IMPULSE OF A LIGHT IN A PREDETERMINED SPECTRAL RANGE AND MEANS CAPABLE OF ATTRACTING SAID ELECTRONS AWAY FROM THE CATHODE AND MULTIPLYING THE NUMBER THEREOF TO PRODUCE A SIZABLE ELECTRICAL PULSE AS A USEFUL OUTPUT SIGNAL; A PLURALITY OF CLOSELY-GROUPEDTOGETHER LUMINOPHORS DISPOSED SUBSTANTIALLY SIDE BY SIDE AND HAVING DISCRETE CAPABILITIES FOR CONVERTING PENETRATIVE RADIATION INTO LIGHT WITHIN SAID RANGE; AND MEANS FOR PERIODICALLY ENABLING SAID PHOTO-ELECTRIC DEVICE TO BE RESPONSIVE DURING NON-OVER-LAPPING, SEQUENTIAL INTERVALS AND ON A TIME-SHARING MULTIPLEX BASIS TO SAMPLES OF THE LIGHT EMITTED BY RESPECTIVE ONES OF SAID LUMINOPHORS TO PRODUCE USEFUL OUTPUT SIGNALS IN ACCORDANCE THEREWITH.
Claim 2
Dependent Claim
127 words
RADIATION DETECTION APPARATUS COMPRISING A HIGH GAIN PHOTO-ELECTRIC DEVICE HAVING A CATHODE WHICH IS CAPABLE OF EMITTING A GROUP OF PHOTO-ELECTRONS IN RESPONSE TO IRRADIATION WITH A IMPULSE OF A LIGHT IN A PREDETERMINED SPECTRAL RANGE AND MEANS CAPABLE OF ATTRACTING SAID ELECTRONS AWAY FROM THE CATHODE AND MULTIPLYING THE NUMBER THEREOF TO PRODUCE A SIZABLE ELECTRICAL PULSE AS A USEFUL OUTPUT SIGNAL; A PLURALITY OF CLOSELY-GROUPEDTOGETHER LUMINOPHORS DISPOSED SUBSTANTIALLY SIDE BY SIDE AND HAVING DISCRETE CAPABILITIES FOR CONVERTING PENETRATIVE RADIATION INTO LIGHT WITHIN SAID RANGE; AND MEANS FOR PERIODICALLY ENABLING SAID PHOTO-ELECTRIC DEVICE TO BE RESPONSIVE DURING NON-OVER-LAPPING, SEQUENTIAL INTERVALS AND ON A TIME-SHARING MULTIPLEX BASIS TO SAMPLES OF THE LIGHT EMITTED BY RESPECTIVE ONES OF SAID LUMINOPHORS TO PRODUCE USEFUL OUTPUT SIGNALS IN ACCORDANCE THEREWITH.
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) | 1959-07-17 | 1960-01-16 | 1960-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-17 | 1964-01-16 | 1964-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-17 | 1968-01-16 | 1968-07-17 | $7700.00 | Window Closed / Lapsed |