US3106643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation inversion device and flaw detector embodying same
Assignee: General Electric Co
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Filing: 1961-06-30
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Granted: 1963-10-08
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Expires: 1981-06-30
Abstract
No abstract record available.
Inventors
- 👤 Roy E Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:35
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/84; G01N21/88
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
133 words
AN INSPECTION APPARATUS FOR DETECTING FLAWS IN A SHEET OF MOVING MATERIAL OF FINITE WIDTH INCLUDING THE COMBINATION OF A LIGHT SOURCE DIRECTED TOWARD THE SHEET MOVING MATERIAL, A PLURALITY OF LIGHT SENSITIVE DEVICES, EACH OF SAID DEVICES COMPRISING A PHOTOCONDUCTOR CONNECTECTED IN SERIES WITH A SOURCE OF CURRENT TOGETHER WITH AN ELECTRICALLY RESPONSIVE LIGHT EMITTING ELEMENT, A FIRST MEANS POSITIONING EACH OF SAID DEVICES IN AN ARRAY OF FINITE WIDTH WITH SAID PHOTOCONDUCTORS IN OPTICAL ALIGNMENT WITH AND FACING THE REFLECTED LIGNT FROM SAID MOVING MATERIAL AND LIGHT SOURCE, A SECOND MEANS EXTENDING THROUGH SAID FIRST MEANS TO CONNECT EACH OF SAID ELEMENT IN PARALLEL WITH EACH SAID PHOTOCONDUCTOR, AND MEANS RESPONSIVE TO LIGHT EMITTED BY ANY OF SAID ELEMENTS TO SIGNAL PASSAGE OF A FLAW IN SAID SHEET OF MOVING MATERIAL.
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) | 1966-10-07 | 1967-04-08 | 1967-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-07 | 1971-04-08 | 1971-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-07 | 1975-04-08 | 1975-10-08 | $7700.00 | Window Closed / Lapsed |