Apparatus and method for eliminating or reducing the internal flaws of semifinished products,especially at cast ingots,blocks,blooms,slabs,billets or the like
Abstract
Abstract THE INVENTION DISCLOSES AN APPARATUS AND METHOD FOR ELIMINATING OR AT LEAST REDUCING THE INTERNAL FLAWS OF SEMIFINISHED PRODUCTS, ESPECIALLY AT CAST INGOTS, BLOCKS, BLOOMS, SLABS, BILLETS OR THE LIKE. THE INVENTIVE METHOD COMPRISES THE STEPS OF EXERTING A PRESSING FORCE AT ONLY PORTION OF AT LEAST ONE SIDE SURFACE OF THE SEMIFINISHED PRODUCT, AND COMPRESSING THE INNER PORTIONS OF THE SEMIFINISHED PRODUCT BY MEANS OF SAID PRESSING FORCE, SO THAT THE PORTIONS OF THE SEMIFINISHED PRODUCT WHICH HAVE NOT BEEN SUBJECTED TO THE PRESSING FORCE PROVIDE RESISTANCE AGAINST A CHANGE IN SHAPE OF THE SEMIFINISHED PRODUCT, AND THEREFORE, AT LEAST PARTIALLY PREVENT AN ELONGATION OF SUCH SEMIFINISHED PRODUCT. THE INVENTIVE APPARATUS FOR THE PERFORMANCE OF THE AFORESAID METHOD COMPRISES MEANS PROVIDING A PRESSING FORCE-EXERTING EDGE WHICH IS SMALLER THAN THE WIDTH OF THE SURFACE OF THE SEMIFINISHED PRODUCT.
Inventors
- 👤 Erik A Olsson
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |