Patent US3101415A successfully refreshed from Google Patents.
US3101415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiant energy sensitive non-contacting dimensional gage
Assignee: Jones and Laughlin Steel Corp
•
Filing: 1960-03-10
•
Granted: 1963-08-20
•
Expires: 1980-03-10
Abstract
No abstract record available.
Inventors
- 👤 Libenschek Rudolph Steven
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:10
CPC Classifications
G; G01; G01B; G01B11/00; G01B11/02; G01B11/04; G01B11/046; G01B11/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
APPARATUS FOR MEASURING THE EDGE-TO-EDGE DIMENSION OF AN ARTICLE HAVING A DIFFERENT LIGHT INTENSITY THAN THE BACKGROUND SURROUNDING IT COMPRISING, IN COMBINATION, AN ELECTRON-OPTICS DEVICE HAVING A PHOTOSENSITIVE SIGNAL PLATE THEREIN, MEANS FOR FOCUSING AN IMAGE OF THE ARTICLE TO BE MEASURED ON THE SIGNAL PLATE MEANS FOR SCANNING SAID SIGNAL PLATE WITH AN ELECTRON BEAM ALONG A LINE EXTENDING SUBSTANTIALLY PARALLEL TO THE DIMENSION BEING MEASURED, MEANS FOR MODULATING SAID ELECTRON BEAM WHEREBY THE ELECTRON BEAM WILL BE INTERRUPTED AT SPACED INTERVALS AS IT SCANS ACROSS THE SIGNAL PLATE TO PRODUCE A PULSED OUTPUT SIGNAL IN WHICH THE NUMBER OF PULSES OF AMPLITUDE DETERMINED BY THE LIGHT INTENSITY OF SAID ARTICLE IS PROPORTIONAL TO THE DIMENSION BEING MEASURED, AND CIRCUIT APPARATUS FOR COUNTING SAID OUTPUT PULSES.
Claim 2
Dependent Claim
127 words
APPARATUS FOR MEASURING THE EDGE-TO-EDGE DIMENSION OF AN ARTICLE HAVING A DIFFERENT LIGHT INTENSITY THAN THE BACKGROUND SURROUNDING IT COMPRISING, IN COMBINATION, AN ELECTRON-OPTICS DEVICE HAVING A PHOTOSENSITIVE SIGNAL PLATE THEREIN, MEANS FOR FOCUSING AN IMAGE OF THE ARTICLE TO BE MEASURED ON THE SIGNAL PLATE MEANS FOR SCANNING SAID SIGNAL PLATE WITH AN ELECTRON BEAM ALONG A LINE EXTENDING SUBSTANTIALLY PARALLEL TO THE DIMENSION BEING MEASURED, MEANS FOR MODULATING SAID ELECTRON BEAM WHEREBY THE ELECTRON BEAM WILL BE INTERRUPTED AT SPACED INTERVALS AS IT SCANS ACROSS THE SIGNAL PLATE TO PRODUCE A PULSED OUTPUT SIGNAL IN WHICH THE NUMBER OF PULSES OF AMPLITUDE DETERMINED BY THE LIGHT INTENSITY OF SAID ARTICLE IS PROPORTIONAL TO THE DIMENSION BEING MEASURED, AND CIRCUIT APPARATUS FOR COUNTING SAID OUTPUT PULSES.
References Cited (Backward Citations)
US2431824A
Cited
US2494441A
Cited
US2674915A
Cited
US2756627A
Cited
US2907519A
Cited
US2803755A
Cited
US2910908A
Cited
US2959349A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-19 | 1967-02-18 | 1967-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-19 | 1971-02-18 | 1971-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-19 | 1975-02-18 | 1975-08-20 | $7700.00 | Window Closed / Lapsed |