US3357559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endless belt magnetic separator with magnetic doffer
Assignee: Eriez Magnetics
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Filing: 1964-07-28
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Granted: 1967-12-12
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Expires: 1984-07-28
Abstract
No abstract record available.
Inventors
- 👤 Arlo F Israelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:55
CPC Classifications
B; B03; B03C; B03C1/00; B03C1/02; B03C1/16; B03C1/18; B03C1/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A MAGNETIC SEPARATOR COMPRISING A TUBE MADE OF NON-MAGNETIC MATERIAL, AXIALLY SPACED PERMANENT MAGNETS IN SAID TUBE ADAPTED TO FORM A MAGNETIC FIELD THROUGH THE WALL OF SAID TUBE, SAID PERMANENT MAGNETS BEING DISPOSED WITH LIKE POLES ADJACENT EACH OTHER, A PLATE MADE OF MAGNETIZABLE MATERIAL AND HAVING A WIDTH GREATER THAN THE DIAMETER OF SAID TUBE, MEANS TO MOVE SAID TUBE IN AN ENDLESS PATH FROM A POSITION SPACED FROM SAID PLATE A DISTANCE GREATER THAN THE DIAMETER OF SAID TUBE THROUGH A MATERIAL CONTAINING PARTICLES OF MAGNETIC MATERIAL WHEREBY SAID PARTICLES ARE ATTRACTED TO SAID TUBE, SAID MEANS MOVING SAID TUBE INTO ENGAGEMENT WITH SAID PLATE AND ALONG SAID PLATE PARALLEL THERETO WHEREBY SAID PLATE IS MAGNETIZED BY SAID MAGNETS AND SAID PLATE IS ADAPTED TO ATTRACT SAID PARTICLES FROM SAID TUBE.
Claim 2
Dependent Claim
134 words
A MAGNETIC SEPARATOR COMPRISING A TUBE MADE OF NON-MAGNETIC MATERIAL, AXIALLY SPACED PERMANENT MAGNETS IN SAID TUBE ADAPTED TO FORM A MAGNETIC FIELD THROUGH THE WALL OF SAID TUBE, SAID PERMANENT MAGNETS BEING DISPOSED WITH LIKE POLES ADJACENT EACH OTHER, A PLATE MADE OF MAGNETIZABLE MATERIAL AND HAVING A WIDTH GREATER THAN THE DIAMETER OF SAID TUBE, MEANS TO MOVE SAID TUBE IN AN ENDLESS PATH FROM A POSITION SPACED FROM SAID PLATE A DISTANCE GREATER THAN THE DIAMETER OF SAID TUBE THROUGH A MATERIAL CONTAINING PARTICLES OF MAGNETIC MATERIAL WHEREBY SAID PARTICLES ARE ATTRACTED TO SAID TUBE, SAID MEANS MOVING SAID TUBE INTO ENGAGEMENT WITH SAID PLATE AND ALONG SAID PLATE PARALLEL THERETO WHEREBY SAID PLATE IS MAGNETIZED BY SAID MAGNETS AND SAID PLATE IS ADAPTED TO ATTRACT SAID PARTICLES FROM SAID TUBE.
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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) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |