Patent US3246156A successfully refreshed from Google Patents.
US3246156A
Expired / Lapsed
US
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Automatic sample changer for radioactive samples
Assignee: Nuclear Chicago Corp
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Filing: 1963-04-15
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Granted: 1966-04-12
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Expires: 1983-04-15
Abstract
No abstract record available.
Inventors
- 👤 Richard B Frank
- 👤 Joseph E Kus
- 👤 Floyd R Rowan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:37
CPC Classifications
G; G01; G01T; G01T7/00; G01T7/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
224 words
IN AN AUTOMATIC SAMPLE CHANGER FOR RADIOACTIVE SAMPLES HAVING (A) A COUNTING STATION, AN ENDLESS CONVEYOR WITH RECEPTACLES ADAPTED TO RECEIVE SAMPLES TO BE COUNTED AND TO TRANSPORT THEM REPETITIVELY THROUGH THE PATH OF THE CONVEYOR, MEANS FOR DRIVING THE CONVEYOR TO MOVE SUCCESSIVE SAMPLES TO THE COUNTING STATION, COUNTING CYCLE PROGRAMMING MEANS TO STOP THE CONVEYOR TO POSITION SAMPLES AS THE COUNTING STATION AND TO MEASURE AND RECORD THE ACTIVITY OF EACH SAMPLE SO STOPPED AT THE COUNTING STATION, AND MEANS TO RESTART THE CONVEYOR AFTER EACH COUNTING CYCLE, THE IMPROVED CONSTRUCTION HAVING (B) A FIRST SENSING MEANS ADJACENT TO THE COUNTING STATION FOR SENSING THE PRESENCE OF A SAMPLE IN EACH RECEPTACLE AND FOR ACTUATING THE COUNTING CYCLE PROGRAMMING MEANS ONLY WHEN A SAMPLE IS PRESENT, (C) GROUP SELECTION MEMBERS ADAPTED TO BE PLACED AT DESIRED PRESELECTED LOCATIONS ON THE CONVEYOR, (D) A SECOND SENSING MEANS FOR SENSING THE PRESENCE OF SUCH A GROUP SELECTION MEMBER AS IT REACHES A PREDETERMINED POINT IN THE PATH OF THE CONVEYOR, AND (E) MEANS INCLUDING THE SECOND SENSING MEANS TO INACTIVATE THE COUNTING CYCLE PROGRAMMING MEANS TO BY-PASS THE COUNTING OF ALL SAMPLES OTHER THAN GROUPS COMMENCING AT THE POSITIONS CORRESPONDING TO THE PRESELECTED LOCATIONS OF THE GROUP SELECTION MEMBERS AND TO ACTIVATE THE COUNTING CYCLE PROGRAMMING MEANS TO COUNT THE SAMPLES IN SAID GROUPS.
Claim 2
Dependent Claim
224 words
IN AN AUTOMATIC SAMPLE CHANGER FOR RADIOACTIVE SAMPLES HAVING (A) A COUNTING STATION, AN ENDLESS CONVEYOR WITH RECEPTACLES ADAPTED TO RECEIVE SAMPLES TO BE COUNTED AND TO TRANSPORT THEM REPETITIVELY THROUGH THE PATH OF THE CONVEYOR, MEANS FOR DRIVING THE CONVEYOR TO MOVE SUCCESSIVE SAMPLES TO THE COUNTING STATION, COUNTING CYCLE PROGRAMMING MEANS TO STOP THE CONVEYOR TO POSITION SAMPLES AS THE COUNTING STATION AND TO MEASURE AND RECORD THE ACTIVITY OF EACH SAMPLE SO STOPPED AT THE COUNTING STATION, AND MEANS TO RESTART THE CONVEYOR AFTER EACH COUNTING CYCLE, THE IMPROVED CONSTRUCTION HAVING (B) A FIRST SENSING MEANS ADJACENT TO THE COUNTING STATION FOR SENSING THE PRESENCE OF A SAMPLE IN EACH RECEPTACLE AND FOR ACTUATING THE COUNTING CYCLE PROGRAMMING MEANS ONLY WHEN A SAMPLE IS PRESENT, (C) GROUP SELECTION MEMBERS ADAPTED TO BE PLACED AT DESIRED PRESELECTED LOCATIONS ON THE CONVEYOR, (D) A SECOND SENSING MEANS FOR SENSING THE PRESENCE OF SUCH A GROUP SELECTION MEMBER AS IT REACHES A PREDETERMINED POINT IN THE PATH OF THE CONVEYOR, AND (E) MEANS INCLUDING THE SECOND SENSING MEANS TO INACTIVATE THE COUNTING CYCLE PROGRAMMING MEANS TO BY-PASS THE COUNTING OF ALL SAMPLES OTHER THAN GROUPS COMMENCING AT THE POSITIONS CORRESPONDING TO THE PRESELECTED LOCATIONS OF THE GROUP SELECTION MEMBERS AND TO ACTIVATE THE COUNTING CYCLE PROGRAMMING MEANS TO COUNT THE SAMPLES IN SAID GROUPS.
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) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |