Patent US1284439A successfully refreshed from Google Patents.
Patent US3610402A successfully refreshed from Google Patents.
US3610402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roll for displacement of barlike products
Assignee: USINOR SA
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Filing: 1969-01-22
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Granted: 1971-10-05
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Expires: 1989-01-22
Abstract
Abstract Roll for transporting rolled steel products comprises rings of ferromagnetic material separated by rings of nonmagnetic material. All rings have same diameter but nonmagnetic rings are narrower than magnetic rings. Annular coil within each magnetic ring supplied with DC power to magnetize ferromagnetic rings. Entire assembly mounted on rotatable shaft. Apparatus may comprise plurality of such rolls on parallel shafts with idler rolls between them; nonmagnetic rings of the rolls being out of alignment.
Inventors
- 👤 Georges Louis Pierre Tavernier
- 👤 Robert Lucien Dubois
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:37
CPC Classifications
B; B65; B65G; B65G39/00; B65G39/02; B65G39/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
150 words
An installation for simultaneously transporting a plurality of separate elongated ferromagnetic barlike products in a longitudinal direction while the products lie side by side forming a layer of nap, said installation comprising at least one roll having on its surface areas of ferromagnetic material separated by areas of nonmagnetic material, each of said areas of nonmagnetic material being substantial but having less surface area than each of said areas of ferromagnetic material, magnetizing coils in the interior of said roll in the vicinity of the ferromagnetic areas and magnetically coupled thereto, means for supplying said coils with direct current, means for positively rotating said roll to longitudinally advance the products engaging it, and a metallic plate adjacent to and downstream of said roll in relation to the direction of movement of the products, said plate being at a level slightly lower than that of the upper generatrix of said roll.
Claim 2
Dependent Claim
150 words
An installation for simultaneously transporting a plurality of separate elongated ferromagnetic barlike products in a longitudinal direction while the products lie side by side forming a layer of nap, said installation comprising at least one roll having on its surface areas of ferromagnetic material separated by areas of nonmagnetic material, each of said areas of nonmagnetic material being substantial but having less surface area than each of said areas of ferromagnetic material, magnetizing coils in the interior of said roll in the vicinity of the ferromagnetic areas and magnetically coupled thereto, means for supplying said coils with direct current, means for positively rotating said roll to longitudinally advance the products engaging it, and a metallic plate adjacent to and downstream of said roll in relation to the direction of movement of the products, said plate being at a level slightly lower than that of the upper generatrix of said roll.
Claim 3
Dependent Claim
165 words
An installation for simultaneously transporting a plurality of separate elongated ferromagnetic barlike products in a longitudinal direction while the products lie side by side forming a layer of nap, said installation comprising at least two rolls each having on its surface areas of ferromagnetic material separated by areas of nonmagnetic material, each of said areas of nonmagnetic material being substantial but having less surface area than each of said areas of ferromagnetic material, magnetizing coils in the interior of each of said rolls in the vicinity of the ferromagnetic areas and magnetically coupled thereto, means for supplying said coils with direct current, and means for positively rotating said rolls to longitudinally advance the products engaging them, said rolls being rotatable about parallel axes and spaced apart a distance less than the length of the products being transported, and the magnetic areas of one roll being out of alignment with the magnetic areas of the other roll in a direction perpendicular to their axes of rotation.
Claim 4
Dependent Claim
165 words
An installation for simultaneously transporting a plurality of separate elongated ferromagnetic barlike products in a longitudinal direction while the products lie side by side forming a layer of nap, said installation comprising at least two rolls each having on its surface areas of ferromagnetic material separated by areas of nonmagnetic material, each of said areas of nonmagnetic material being substantial but having less surface area than each of said areas of ferromagnetic material, magnetizing coils in the interior of each of said rolls in the vicinity of the ferromagnetic areas and magnetically coupled thereto, means for supplying said coils with direct current, and means for positively rotating said rolls to longitudinally advance the products engaging them, said rolls being rotatable about parallel axes and spaced apart a distance less than the length of the products being transported, and the magnetic areas of one roll being out of alignment with the magnetic areas of the other roll in a direction perpendicular to their axes of rotation.
References 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) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |