Patent US3405267A successfully refreshed from Google Patents.
US3405267A
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Inner layer displacement measuring method and apparatus
Assignee: Industrial Nucleonics Corp
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Filing: 1964-06-17
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Granted: 1968-10-08
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Expires: 1984-06-17
Abstract
No abstract record available.
Inventors
- 👤 Wilbert E Chope
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:24
CPC Classifications
G; G01; G01N; G01N23/00; G01N23/02; G01N23/06; G01N23/16
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
169 words
APPARATUS FOR DETERMINING THE POSITION OF A SHEET OF ONE MATERIAL OF CONSTANT COMPOSITION AND DENSITY OF AN INTERMEDIATE LAYER OF DIFFERENT MATERIAL BUT OF CONSTANT COMPOSITION AND WEIGHT PER UNIT AREA, SAID APPARATUS COMPRISING: MEANS FOR DIRECTING A BEAM OF RADIATION INTO OPPOSITE SURFACES OF SAID SHEET TOWARD SAID LAYER, MEANS FOR DETECTING RADIATION RETURNED FROM A FIRST SURFACE ON ONE SIDE OF SAID SHEET TO GENERATE A FIRST SIGNAL THAT IS A FUNCTION OF THE THICKNESS OF SAID SHEET MATERIAL LOCATED BETWEEN SAID SURFACE AND SAID LAYER, MEANS FOR DETECTING RADIATION RETURNED FROM A SECOND SURFACE ON THE OPPOSITE SIDE OF SAID SHEET TO GENERATE A SECOND SIGNAL THAT IS A FUNCTION OF THE THICKNESS OF SAID SHEET MATERIAL LOCATED BETWEEN SAID OPPOSITE SURFACE AND SAID LAYER, AND MEANS FOR COMBINING SAID FIRST AND SECOND SIGNALS IN ACCORDANCE WITH A PREDETERMINED RELATIONSHIP TO OBTAIN AN OUTPUT SIGNAL THAT IS A FUNCTION OF THE DEVIATION OF SAID INTERMEDIATE LAYER FROM THE MEDIAN PLANE OF SAID OPPOSITE SHEET SURFACES.
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) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |