US3132858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet piler
Assignee: United States Steel Corp
•
Filing: 1961-11-20
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Granted: 1964-05-12
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Expires: 1981-11-20
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry M Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:02
CPC Classifications
B; B65; B65H; B65H29/00; B65H29/26; B65H29/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
IN A SHEET PILER INCLUDING AN ELECTROMAGNETIC CONVEYOR, MEANS FOR FEEDING STEEL SHEETS TO THE UNDERSIDE OF SAID MAGNETIC CONVEYOR, A PLATFORM BENEATH SAID MAGNETIC CONVEYOR FOR RECEIVING SHEETS, AND MEANS FOR LOWERING SAID PLATFORM AS SHEETS ACCUMULATE THEREON, THE IMPROVEMENT COMPRISING A NON-CONTACT SHEET SENSING DEVICE AT THE ENTRY END OF SAID MAGNETIC CONVEYOR, A RESILIENT TIP, MEANS MOUNTING SAID RESILIENT TIP FOR MOVEMENT FROM A POSITION ABOVE THE PATH OF TRAVEL OF A SHEET TO SAID MAGNETIC CONVEYOR TO A POSITION DOWNWARDLY AND AWAY FROM THE DIRECTION OF APPROACH OF SAID SHEETS, MEANS OPERABLE BY ACTUATION OF SAID SENSING DEVICE TO ENERGIZE SAID MAGNETIC CONVEYOR AND MOVE SAID RESILIENT TIP TO ITS UPPER POSITION, AND MEANS OPERABLE BY MOVEMENT OF A SHEET BEYOND SAID SENSING DEVICE TO DEENERGIZE SAID MAGNETIC CONVEYOR AND MOVE SAID RESILIENT TIP DOWNWARDLY AWAY FROM THE DIRECTION OF SHEET FEED WHEREBY SAID RESILIENT TIP CONTACTS THE TOP OF SAID FED SHEET INTERMEDIATE ITS ENDS AFTER DEENERGIZATION OF SAID MAGNETIC CONVEYOR AND MOVES DOWNWARDLY WITH SAID FED SHEET.
Claim 2
Dependent Claim
173 words
IN A SHEET PILER INCLUDING AN ELECTROMAGNETIC CONVEYOR, MEANS FOR FEEDING STEEL SHEETS TO THE UNDERSIDE OF SAID MAGNETIC CONVEYOR, A PLATFORM BENEATH SAID MAGNETIC CONVEYOR FOR RECEIVING SHEETS, AND MEANS FOR LOWERING SAID PLATFORM AS SHEETS ACCUMULATE THEREON, THE IMPROVEMENT COMPRISING A NON-CONTACT SHEET SENSING DEVICE AT THE ENTRY END OF SAID MAGNETIC CONVEYOR, A RESILIENT TIP, MEANS MOUNTING SAID RESILIENT TIP FOR MOVEMENT FROM A POSITION ABOVE THE PATH OF TRAVEL OF A SHEET TO SAID MAGNETIC CONVEYOR TO A POSITION DOWNWARDLY AND AWAY FROM THE DIRECTION OF APPROACH OF SAID SHEETS, MEANS OPERABLE BY ACTUATION OF SAID SENSING DEVICE TO ENERGIZE SAID MAGNETIC CONVEYOR AND MOVE SAID RESILIENT TIP TO ITS UPPER POSITION, AND MEANS OPERABLE BY MOVEMENT OF A SHEET BEYOND SAID SENSING DEVICE TO DEENERGIZE SAID MAGNETIC CONVEYOR AND MOVE SAID RESILIENT TIP DOWNWARDLY AWAY FROM THE DIRECTION OF SHEET FEED WHEREBY SAID RESILIENT TIP CONTACTS THE TOP OF SAID FED SHEET INTERMEDIATE ITS ENDS AFTER DEENERGIZATION OF SAID MAGNETIC CONVEYOR AND MOVES DOWNWARDLY WITH SAID FED SHEET.
References Cited (Backward Citations)
US1512413A
Cited
US2960242A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |