Patent US3553570A successfully refreshed from Google Patents.
US3553570A
Expired / Lapsed
US
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Automatic billet inspector
Assignee: Republic Steel Corp
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Filing: 1969-01-22
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Granted: 1971-01-05
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Expires: 1989-01-22
Abstract
Abstract METAL BILLETS ARE CONVEYED PAST A DEFECT SCANNING UNIT THAT RECIPROCATES SEARCH COILS ACROSS A BILLET SURFACE. THE SCANNING UNIT IS MOVABLE TO A POSITION ADJACENT THE BILLET SURFACE AND THE SEARCH COILS ARE INDEPENDENTLY POSITIONED ON THE BILLET SURFACE. SCANNING UNIT MOVEMENT ACROSS THE BILLET IS REVERSED IN RESPONSE TO SENSING OF BILLET EDGES.
Inventors
- 👤 John J Skubiak
- 👤 John A Toth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:37
CPC Classifications
G; G01; G01N; G01N29/00; G01N29/22; G01N29/26; G01N29/265; G01N27/00; G01N27/72; G01N27/82; G01N27/90; G01N27/9093
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |