US3334231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plate thickness measuring device with means to adjust source voltage in response to thickness variations
Assignee: General Electric Co
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Filing: 1964-06-25
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Granted: 1967-08-01
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Expires: 1984-06-25
Abstract
No abstract record available.
Inventors
- 👤 Bernstein Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:00
CPC Classifications
G; G01; G01N; G01N23/00; G01N23/02; G01N23/06; G01N23/16; G01N23/083
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A GAGE FOR INSPECTING THE THICKNESS PROFILE OF A WORKPIECE COMPRISING: (A) A SOURCE OF PENETRATING RADIATION ON ONE SIDE OF THE WORKPIECE, (B) A PLURALITY OF RADIATION DETECTORS ON THE OTHER SIDE OF THE WORKPIECE FOR PRODUCING ELECTRIC CURRENTS THAT EACH DEPEND ON THE RAYS FROM THE SOURCE AFTER PENETRATION THROUGH DIFFERENT PARTS OF THE WORKPIECE, (C) THE DIFFERENCE BETWEEN THE CURRENTS BEING DEPENDENT ON THICKNESS VARIATIONS BETWEEN THE PARTS AND THE CHANGE IN DETECTOR CURRENT $I WITH RESPECT TO CHANGE IN THE THICKNESS $T BEING DEPENDENT ON THE RADIATION FROM THE SOURCE, (D) MEANS FOR GENERATING AN ELECTRIC SIGNAL THAT IS REPRESENTATIVE OF $I/$T FOR A PREDETERMINED RADIATION FROM THE SOURCE, AND (E) MEANS THAT RESPOND SO SAID LAST NAMED SIGNAL GENERATING MEANS FOR ADJUSTING THE CHARACTERISTICS OF THE SOURCE TO MAINTAIN $I/$T SUBSTANTIALLY CONSTANT FOR A WORKPIECE OF ANY THICKNESS WITHIN THE RANGE OF THE GAGE.
Claim 2
Dependent Claim
149 words
A GAGE FOR INSPECTING THE THICKNESS PROFILE OF A WORKPIECE COMPRISING: (A) A SOURCE OF PENETRATING RADIATION ON ONE SIDE OF THE WORKPIECE, (B) A PLURALITY OF RADIATION DETECTORS ON THE OTHER SIDE OF THE WORKPIECE FOR PRODUCING ELECTRIC CURRENTS THAT EACH DEPEND ON THE RAYS FROM THE SOURCE AFTER PENETRATION THROUGH DIFFERENT PARTS OF THE WORKPIECE, (C) THE DIFFERENCE BETWEEN THE CURRENTS BEING DEPENDENT ON THICKNESS VARIATIONS BETWEEN THE PARTS AND THE CHANGE IN DETECTOR CURRENT $I WITH RESPECT TO CHANGE IN THE THICKNESS $T BEING DEPENDENT ON THE RADIATION FROM THE SOURCE, (D) MEANS FOR GENERATING AN ELECTRIC SIGNAL THAT IS REPRESENTATIVE OF $I/$T FOR A PREDETERMINED RADIATION FROM THE SOURCE, AND (E) MEANS THAT RESPOND SO SAID LAST NAMED SIGNAL GENERATING MEANS FOR ADJUSTING THE CHARACTERISTICS OF THE SOURCE TO MAINTAIN $I/$T SUBSTANTIALLY CONSTANT FOR A WORKPIECE OF ANY THICKNESS WITHIN THE RANGE OF THE GAGE.
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) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |