Patent US2738876A successfully refreshed from Google Patents.
US2738876A
Expired / Lapsed
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Magnetic separating means and transporting device
Assignee: Prater Pulverizer Co
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Filing: 1951-06-12
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Granted: 1956-03-20
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Expires: 1971-06-12
Abstract
No abstract record available.
Inventors
- 👤 George F Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:38
CPC Classifications
B; B03; B03C; B03C1/00; B03C1/02; B03C1/16; B03C1/18
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
167 words
A MATERIAL TRANSPORTING AND SEPARATING DEVICE COMPRISING AN ENDLESS BELT CONVEYOR, SAID ENDLESS BELT CONVEYOR INCLUDING AN ENDLESS BELT AND A TRACTION ROLLER AND COMPRISING A SUB-ASSEMBLY ENDLESS BELT CONVEYOR HAVING A MAGNETIC ENDLESS BELT MEMBER, SAID MAGNETIC ENDLESS BELT MEMBER COMPRISING SPACED ENDLESS SPROCKET CHAINS, A PLURALITY OF LONGITUDINALLY SPACED MAGNETIC STRUCTURE, EACH OF SAID MAGNETIC STRUCTURES INCLUDING A PLURALITY OF LATERALLY SPACED BASE PLATES, TRANSVERSELY SPACED PERMANENT USHAPED MAGNETS AFFIXED TO THE BASE PLATES, SAID BASE PLATES BEING TRANSVERSELY ARRANGED WITH RESPECT TO THE DIRECTION OF MOVEMENT OF THE MAGNETIC ENDLESS BELT MEMBER, SIDE BARS AFFIXED TO THE BASE PLATES FOR SPACING AND SUPPORTING THE BASE PLATES, AND YOKE MEMBERS OPERATIVELY CONNECTING EACH END OF THE MAGNETIC STRUCTURES TO THE SPACED ENDLESS SPROCKET CHAINS, AND IDLER ROLLER SPACED FROM AND ALIGNED WITH SAID TRACTION ROLLER, SAID ENDLESS BELT ARRANGED OVER SAID TRACTION AND IDLER ROLLERS, AND SAID LAST-MENTIONED ENDLESS BELT BEING CONSTRUCTED OF A NON-MAGNETIZABLE MATERIAL HAVING A LOW PERMEANCE TO MAGNETIC LINES OF FLUX.
References Cited (Backward Citations)
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US1391400A
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Cited
US2291042A
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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) | 1959-03-20 | 1959-09-19 | 1960-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-20 | 1963-09-19 | 1964-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-20 | 1967-09-19 | 1968-03-20 | $7700.00 | Window Closed / Lapsed |