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US2738876A Expired / Lapsed US ⏱️ 0.0 years remaining

Magnetic separating means and transporting device

Assignee: Prater Pulverizer Co
•
Filing: 1951-06-12
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Granted: 1956-03-20
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Expires: 1971-06-12
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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)

US109354A Cited
US751150A Cited
US1391400A Cited
US687053A Cited
GB203189A Cited
US2291042A Cited
US2604207A Cited

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

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