Patent US3283151A successfully refreshed from Google Patents.
US3283151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic sample changer for scintillation counting
Assignee: Nuclear Chicago Corp
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Filing: 1963-04-15
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Granted: 1966-11-01
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Expires: 1983-04-15
Abstract
No abstract record available.
Inventors
- 👤 Floyd R Rowan
- 👤 Joseph E Kus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:33
CPC Classifications
G; G01; G01T; G01T7/00; G01T7/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A LIQUID SCINTILLATION SAMPLE CHANGER COMPRISING: (A) A CONVEYOR BEARING RADIOACTIVE SAMPLES DISPERSED IN A SCINTILLATING LIQUID, (B) A LIGHT-TIGHT CHAMBER HAVING A PHOTOSENSITIVE TRANSDUCER THEREIN, (C) A PASSAGE CONNECTING THE CHAMBER AND THE CONVEYOR, (D) A LIGHT-TIGHT CLOSURE SELECTIVELY OPENING AND CLOSING THE OUTER END OF THE PASSAGE, (E) LIGHT-SEALING MEANS FORMING A LIGHT-TIGHT SEAL IN THE PASSAGE INWARD OF THE CLOSURE, (F) MECHANICAL CONNECTION MEANS INTERCOUPLING THE CLOSURE AND THE SEALING MEANS FOR MAINTAINING THE SEAL AT ALL TIMES WHEN THE CLOSURE IS AT LEAST PARTIALLY OPEN, (G) CYCLED SAMPLE DELIVERY MEANS FOR FIRST MOVING A SAMPLE FROM THE CONVEYOR THROUGH THE PASSAGE TO THE CHAMBER, AND LATER MOVING THE SAMPLE THROUGH THE PASSAGE BACK TO THE CONVEYOR,
Claim 2
Dependent Claim
120 words
A LIQUID SCINTILLATION SAMPLE CHANGER COMPRISING: (A) A CONVEYOR BEARING RADIOACTIVE SAMPLES DISPERSED IN A SCINTILLATING LIQUID, (B) A LIGHT-TIGHT CHAMBER HAVING A PHOTOSENSITIVE TRANSDUCER THEREIN, (C) A PASSAGE CONNECTING THE CHAMBER AND THE CONVEYOR, (D) A LIGHT-TIGHT CLOSURE SELECTIVELY OPENING AND CLOSING THE OUTER END OF THE PASSAGE, (E) LIGHT-SEALING MEANS FORMING A LIGHT-TIGHT SEAL IN THE PASSAGE INWARD OF THE CLOSURE, (F) MECHANICAL CONNECTION MEANS INTERCOUPLING THE CLOSURE AND THE SEALING MEANS FOR MAINTAINING THE SEAL AT ALL TIMES WHEN THE CLOSURE IS AT LEAST PARTIALLY OPEN, (G) CYCLED SAMPLE DELIVERY MEANS FOR FIRST MOVING A SAMPLE FROM THE CONVEYOR THROUGH THE PASSAGE TO THE CHAMBER, AND LATER MOVING THE SAMPLE THROUGH THE PASSAGE BACK TO THE CONVEYOR,
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) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |