US3096443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic surface inspection system
Assignee: Jones and Laughlin Steel Corp
•
Filing: 1960-06-20
•
Granted: 1963-07-02
•
Expires: 1980-06-20
Abstract
No abstract record available.
Inventors
- 👤 John F Laycak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:01
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/84; G01N21/88; G01N21/89
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
IN APPARATUS FOR DETECTING FLAWS ON THE SURFACE OF MOVING MATERIAL IN WHICH THE FLAWS HAVE A DIFFERENT OPRICAL APPEARANCE THAN THE REMAINDER OF THE MATERIAL, THE COMBINATION OF MEANS INCLUDING AN ELECTRON-OPTICS DEVICE FOR SCANNING AN IMAGE OF THE SURFACE OF SAID MATERIAL WITH AN UNMODUALTED ELECTRON BEAM ALONG A LINE EXTENDING SUBSTANTIALLY PERPENDICULAR TO THE DIRECTION OF MOVEMENT OF THE MATERIAL TO PRODUCE A PULSED SIGNAL IN WHICH A PULSE IS PRODUCED EACH TIME THE ELECTRON BEAM SCANS OVER THE IMAGE OF A DEFECT, MEANS RESPONSIVE TO THE SPEED OF SAID MOVING MATERIAL FOR GATING SAID PULDED SIGNAL TO ELIMINATE A PORION OF THE PULSES THEREIN AND PRODUCE A RESULTANT SIGNAL, THE PORTION OF THE PULSES ELIMINATED BEING A FUNC-
Claim 2
Dependent Claim
122 words
IN APPARATUS FOR DETECTING FLAWS ON THE SURFACE OF MOVING MATERIAL IN WHICH THE FLAWS HAVE A DIFFERENT OPRICAL APPEARANCE THAN THE REMAINDER OF THE MATERIAL, THE COMBINATION OF MEANS INCLUDING AN ELECTRON-OPTICS DEVICE FOR SCANNING AN IMAGE OF THE SURFACE OF SAID MATERIAL WITH AN UNMODUALTED ELECTRON BEAM ALONG A LINE EXTENDING SUBSTANTIALLY PERPENDICULAR TO THE DIRECTION OF MOVEMENT OF THE MATERIAL TO PRODUCE A PULSED SIGNAL IN WHICH A PULSE IS PRODUCED EACH TIME THE ELECTRON BEAM SCANS OVER THE IMAGE OF A DEFECT, MEANS RESPONSIVE TO THE SPEED OF SAID MOVING MATERIAL FOR GATING SAID PULDED SIGNAL TO ELIMINATE A PORION OF THE PULSES THEREIN AND PRODUCE A RESULTANT SIGNAL, THE PORTION OF THE PULSES ELIMINATED BEING A FUNC-
References Cited (Backward Citations)
US2184157A
Cited
US2184159A
Cited
US2276565A
Cited
US2261192A
Cited
US2393631A
Cited
US2494441A
Cited
US2648723A
Cited
US2661902A
Cited
US2731202A
Cited
US2927219A
Cited
US2756627A
Cited
GB747558A
Cited
US2907519A
Cited
US3019972A
Cited
US2910908A
Cited
US2819399A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-01 | 1966-12-31 | 1967-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-01 | 1970-12-31 | 1971-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-01 | 1974-12-31 | 1975-07-02 | $7700.00 | Window Closed / Lapsed |