US2730233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for inspecting and classifying flat steel products
Assignee: United States Steel Corp
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Filing: 1952-03-18
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Granted: 1956-01-10
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Expires: 1972-03-18
Abstract
No abstract record available.
Inventors
- 👤 William E Coleman
- 👤 George H Rendel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:00
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/84; G01N21/88; G01N21/89; G01N21/892; G01N21/894; Y; Y10; Y10T; Y10T83/00; Y10T83/465; Y10T83/4766; Y10T83/4795; Y10T83/4809
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
209 words
APPARATUS FOR INSPECTING AND CLASSIFYING FLAT PRODUCTS WHICH COMPRISES A PIN HOLE DETECTOR, MEANS FOR PASSING THE FLAT PRODUCT IN STRIP FORM THROUGH THE PIN HOLE DETECTOR, A MARKER ACTUATED BY SAID PIN HOLE DETECTOR WHEN A PIN HOLE APPEARS IN THE STRIP FOR APPLYING A MARK TO THE STRIP ADJACENT THE PIN HOLE, A SHEAR FOR CUTTING THE STRIP INTO SHEETS, A MARK DETECTOR ADJACENT THE PATH OF TRAVEL OF THE SHEETS, A DEFLECTOR LOCATED ALONG THE PATH OF TRAVEL OF THE SHEETS BEYOND SAID DETECTOR, A PHOTOCELL LOCATED APPROXIMATELY THE LENGTH OF ONE SHEET FROM SAID DETECTOR ON THE SIDE THEREOF ADJACENT SAID DEFLECTOR, MEANS FOR ACTUATING SAID DEFLECTOR, AND A CIRCUIT FOR ACTUATING SAID LAST NAMED MEANS WHEN THE LEADING EDGE OF A SHEET WITH A MARK THEREON CUTS OFF LIGHT TO SAID PHOTOCELL TO DEFLECT SAID SHEET OUT OF THE NORMAL PATH OF TRAVEL, SAID CIRCUIT INCLUDING MEANS FOR STORING A SIGNAL FROM SAID DETECTOR IN RESPONSE TO THE SAID MARK ON THE MARKED SHEET PASSING THE DETECTOR, AND MEANS CONNECTING SAID PHOTOCELL TO SAID LAST NAMED MEANS TO DEACTIVATE SAID MEANS FOR STORING A SIGNAL WHEN THE LEADING EDGE OF THE MARKED SHEET REACHES SAID PHOTOCELL SO THAT SAID DEFLECTOR ACTUATING MEANS IN ACTUATED.
Claim 2
Dependent Claim
209 words
APPARATUS FOR INSPECTING AND CLASSIFYING FLAT PRODUCTS WHICH COMPRISES A PIN HOLE DETECTOR, MEANS FOR PASSING THE FLAT PRODUCT IN STRIP FORM THROUGH THE PIN HOLE DETECTOR, A MARKER ACTUATED BY SAID PIN HOLE DETECTOR WHEN A PIN HOLE APPEARS IN THE STRIP FOR APPLYING A MARK TO THE STRIP ADJACENT THE PIN HOLE, A SHEAR FOR CUTTING THE STRIP INTO SHEETS, A MARK DETECTOR ADJACENT THE PATH OF TRAVEL OF THE SHEETS, A DEFLECTOR LOCATED ALONG THE PATH OF TRAVEL OF THE SHEETS BEYOND SAID DETECTOR, A PHOTOCELL LOCATED APPROXIMATELY THE LENGTH OF ONE SHEET FROM SAID DETECTOR ON THE SIDE THEREOF ADJACENT SAID DEFLECTOR, MEANS FOR ACTUATING SAID DEFLECTOR, AND A CIRCUIT FOR ACTUATING SAID LAST NAMED MEANS WHEN THE LEADING EDGE OF A SHEET WITH A MARK THEREON CUTS OFF LIGHT TO SAID PHOTOCELL TO DEFLECT SAID SHEET OUT OF THE NORMAL PATH OF TRAVEL, SAID CIRCUIT INCLUDING MEANS FOR STORING A SIGNAL FROM SAID DETECTOR IN RESPONSE TO THE SAID MARK ON THE MARKED SHEET PASSING THE DETECTOR, AND MEANS CONNECTING SAID PHOTOCELL TO SAID LAST NAMED MEANS TO DEACTIVATE SAID MEANS FOR STORING A SIGNAL WHEN THE LEADING EDGE OF THE MARKED SHEET REACHES SAID PHOTOCELL SO THAT SAID DEFLECTOR ACTUATING MEANS IN ACTUATED.
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) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |