US2748940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic separator
Assignee: Individual
•
Filing: 1954-09-17
•
Granted: 1956-06-05
•
Expires: 1974-09-17
Abstract
No abstract record available.
Inventors
- 👤 Roth Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:20
CPC Classifications
B; B03; B03C; B03C1/00; B03C1/02; B03C1/10; B03C1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A DEVICE FOR SEPARATING MAGNETIZABLE FOREIGN BODIES FROM BULK MATERIAL TO BE GROUND OR CRUSHED, COMPRISING A ROTOR FIXED TO A HORIZONTAL SHAFT, A PLURALITY OF MAGNET BODIES MOUNTED AT UNIFORM DISTANCES AROUND THE CIRCUMFERENCE OF SAID ROTOR, AND A DUST-TIGHT HOUSING ENCLOSING THE ROTOR AND SAID MAGNET BODIES, SAID HOUSING COMPRISING A JACKET MADE OF NON-MAGNETIZABLE MATERIAL AND SERVING AS A SLIDING TRACK FOR THE BULK MATERIAL, SAID JACKET COMPRISING A PORTION DISPOSED ON ONE SIDE OF THE ROTOR ON BOTH SIDES OF ITS HORIZONTAL MEDIUM PLANE IN A CIRCULAR ARC CONCENTRIC WITH THE ROTOR SHAFT AND AT SHORT DISTANCE FROM
Claim 2
Independent Claim
102 words
A DEVICE FOR SEPARATING MAGNETIZABLE FOREIGN BODIES FROM BULK MATERIAL TO BE GROUND OR CRUSHED, COMPRISING A ROTOR FIXED TO A HORIZONTAL SHAFT, A PLURALITY OF MAGNET BODIES MOUNTED AT UNIFORM DISTANCES AROUND THE CIRCUMFERENCE OF SAID ROTOR, AND A DUST-TIGHT HOUSING ENCLOSING THE ROTOR AND SAID MAGNET BODIES, SAID HOUSING COMPRISING A JACKET MADE OF NON-MAGNETIZABLE MATERIAL AND SERVING AS A SLIDING TRACK FOR THE BULK MATERIAL, SAID JACKET COMPRISING A PORTION DISPOSED ON ONE SIDE OF THE ROTOR ON BOTH SIDES OF ITS HORIZONTAL MEDIUM PLANE IN A CIRCULAR ARC CONCENTRIC WITH THE ROTOR SHAFT AND AT SHORT DISTANCE FROM
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |