US3176306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for testing surface quality of material
Assignee: British Iron and Steel Research Association BISRA
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Filing: 1962-05-07
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Granted: 1965-03-30
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Expires: 1982-05-07
Abstract
No abstract record available.
Inventors
- 👤 Burns Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:59
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/84; G01N21/86; G01N21/88; G01N21/89
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
APPARATUS FOR TESTING THE SURFACE QUALITY OF MOVING ELONGATE MATERIAL COMPRISING MEANS FOR ILLUMINATING THE MATERIAL SURFACE IN AN AREA EXTENDING TRANSVERSE THE PATH OF MATERIAL MOVEMENT, AN OPTICAL SYSTEM FOR RECEIVING LIGHT FROM THE ILLUMINATING MEANS BY REFLECTION FROM THE MATERIAL TO FORM AN IMAGE OF THE ILLUMINATED SURFACE, MEANS FOR MOVING AT LEAST PART OF THE OPTICAL SYSTEM IN THE DIRECTION OF MATERIAL MOVEMENT RELATIVE TO THE OPTICAL PATH OF SUCH SYSTEM TO NEUTRALISE OPTICALLY IMAGE MOVEMENT WHICH WOULD OTHERWISE RESULT FROM MOVEMENT OF THE MATERIAL, AND MEANS FOR RECORDING THE IMAGE FORMED BY THE OPTICAL SYSTEM.
Claim 2
Dependent Claim
99 words
APPARATUS FOR TESTING THE SURFACE QUALITY OF MOVING ELONGATE MATERIAL COMPRISING MEANS FOR ILLUMINATING THE MATERIAL SURFACE IN AN AREA EXTENDING TRANSVERSE THE PATH OF MATERIAL MOVEMENT, AN OPTICAL SYSTEM FOR RECEIVING LIGHT FROM THE ILLUMINATING MEANS BY REFLECTION FROM THE MATERIAL TO FORM AN IMAGE OF THE ILLUMINATED SURFACE, MEANS FOR MOVING AT LEAST PART OF THE OPTICAL SYSTEM IN THE DIRECTION OF MATERIAL MOVEMENT RELATIVE TO THE OPTICAL PATH OF SUCH SYSTEM TO NEUTRALISE OPTICALLY IMAGE MOVEMENT WHICH WOULD OTHERWISE RESULT FROM MOVEMENT OF THE MATERIAL, AND MEANS FOR RECORDING THE IMAGE FORMED BY THE OPTICAL SYSTEM.
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) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |