Patent US3289448A successfully refreshed from Google Patents.
US3289448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Back-up means for straightening rolls
Assignee: FJ Littell Machine Co
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Filing: 1964-01-31
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Granted: 1966-12-06
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Expires: 1984-01-31
Abstract
No abstract record available.
Inventors
- 👤 Chester M Wiig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:55
CPC Classifications
B; B21; B21D; B21D1/00; B21D1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
IN A FEEDING AND STRAIGHTENING MACHINE FOR METAL STRIP MATERIAL, IN COMBINATION, A PAIR OF FEEDING ROLLS OPERATING TO ENGAGE THE MATERIAL THEREBETWEEN AND TO FEED THE MATERIAL WHEN THE ROLLS ARE ROTATED IN A FEEDING DIRECTION, A PLURALITY OF STRAIGHTENING ROLLS LOCATED IN ASSOCIATED RELATION WITH THE SAID FEEDING ROLLS, GEARING CONNECTING THE ROLLS WHEREBY THE FEEDING AND STRAIGHTENING ROLLS ROTATE IN UNISON, AND BACKING-UP MEANS FOR EACH OF SAID STRAIGHTENING ROLLS, EACH SAID BACKING-UP MEANS INCLUDING A PLURALITY OF ROLLERS HAVING CONTACT WITH THE PERIPHERY OF A STRAIGHTENING ROLL APPROXIMATELY MID-WAY OF THE LENGTH OF THE ROLL, SUPPORTING MEANS INCLUDING A CARRIAGE BLOCK PROVIDING JOURNALLING MEANS FOR THE ROLLERS, AND A FULCRUM ROD HAVING A BALL AND SOCKET CONNECTION WITH THE CARRIAGE BLOCK.
Claim 2
Dependent Claim
125 words
IN A FEEDING AND STRAIGHTENING MACHINE FOR METAL STRIP MATERIAL, IN COMBINATION, A PAIR OF FEEDING ROLLS OPERATING TO ENGAGE THE MATERIAL THEREBETWEEN AND TO FEED THE MATERIAL WHEN THE ROLLS ARE ROTATED IN A FEEDING DIRECTION, A PLURALITY OF STRAIGHTENING ROLLS LOCATED IN ASSOCIATED RELATION WITH THE SAID FEEDING ROLLS, GEARING CONNECTING THE ROLLS WHEREBY THE FEEDING AND STRAIGHTENING ROLLS ROTATE IN UNISON, AND BACKING-UP MEANS FOR EACH OF SAID STRAIGHTENING ROLLS, EACH SAID BACKING-UP MEANS INCLUDING A PLURALITY OF ROLLERS HAVING CONTACT WITH THE PERIPHERY OF A STRAIGHTENING ROLL APPROXIMATELY MID-WAY OF THE LENGTH OF THE ROLL, SUPPORTING MEANS INCLUDING A CARRIAGE BLOCK PROVIDING JOURNALLING MEANS FOR THE ROLLERS, AND A FULCRUM ROD HAVING A BALL AND SOCKET CONNECTION WITH THE CARRIAGE BLOCK.
References Cited (Backward Citations)
US1911321A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |