US3222979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-contacting dimensional gaging of objects with an electron-optics device
Assignee: Jones and Laughlin Steel Corp
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Filing: 1962-02-09
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Granted: 1965-12-14
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Expires: 1982-02-09
Abstract
No abstract record available.
Inventors
- 👤 Richard R Webster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:20
CPC Classifications
G; G01; G01B; G01B11/00; G01B11/02; G01B11/022; G01B11/04; G01B11/046
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
APPARATUS FOR MEASURING THE EDGE TO EDGE DIMENSION OF AN ARTICLE HAVING A SUBSTANTIALLY UNIFORM LIGHT INTENSITY WHICH IS DIFFERENT THAN THE BACKGROUND SURROUNDING THE ARTICLE COMPRISING, IN COMBINATION, AN ELECTRON-OPTICS DEVICE HAVING A PHOTOSENSITIVE SURFACE THEREIN, MEANS FOR FOCUSING AN IMAGE OF SAID ARTICLE ON THE PHOTOSENSITIVE SURFACE, MEANS IN THE ELECTRON-OPTICS DEVICE FOR CONVERTING THE ELECTRICAL IMAGE PRODUCED ON THE PHOTOSENSITIVE SURFACE INTO A VIDEO OUTPUT SIGNAL REPRESENTING THAT IMAGE, AND MEANS FOR DIVIDING THE PHOTOSENSITIVE SURFACE INTO AREAS OF DIFFERENT PHOTOSENSITIVITY BETWEEN THE EDGES OF SAID IMAGE WHEN THE IMAGE IS FOCUSED THEREON WHEREBY A SERIES OF PULSES WILL BE PRODUCED IN THE VIDEO OUTPUT OF THE ELECTRON-OPTICS DEVICE WITH THE NUMBER OF PULSES BEING A FUNCTION OF THE DISTANCE BETWEEN SAID EDGES OF THE IMAGE.
Claim 2
Dependent Claim
129 words
APPARATUS FOR MEASURING THE EDGE TO EDGE DIMENSION OF AN ARTICLE HAVING A SUBSTANTIALLY UNIFORM LIGHT INTENSITY WHICH IS DIFFERENT THAN THE BACKGROUND SURROUNDING THE ARTICLE COMPRISING, IN COMBINATION, AN ELECTRON-OPTICS DEVICE HAVING A PHOTOSENSITIVE SURFACE THEREIN, MEANS FOR FOCUSING AN IMAGE OF SAID ARTICLE ON THE PHOTOSENSITIVE SURFACE, MEANS IN THE ELECTRON-OPTICS DEVICE FOR CONVERTING THE ELECTRICAL IMAGE PRODUCED ON THE PHOTOSENSITIVE SURFACE INTO A VIDEO OUTPUT SIGNAL REPRESENTING THAT IMAGE, AND MEANS FOR DIVIDING THE PHOTOSENSITIVE SURFACE INTO AREAS OF DIFFERENT PHOTOSENSITIVITY BETWEEN THE EDGES OF SAID IMAGE WHEN THE IMAGE IS FOCUSED THEREON WHEREBY A SERIES OF PULSES WILL BE PRODUCED IN THE VIDEO OUTPUT OF THE ELECTRON-OPTICS DEVICE WITH THE NUMBER OF PULSES BEING A FUNCTION OF THE DISTANCE BETWEEN SAID EDGES OF THE IMAGE.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |