Patent US3552565A successfully refreshed from Google Patents.
US3552565A
Expired / Lapsed
US
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Magnetic separator
Assignee: Individual
•
Filing: 1968-05-22
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Granted: 1971-01-05
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Expires: 1988-05-22
Abstract
Abstract A suspended magnet, rotary drum, magnetic pulley or like separator or cobber for the recovery of magnetic materials from comminuted nonmagnetic materials and wherein a ferromagnetic coil constitutes part of the means for energizing a ferromagnetic circuit and also constitutes part of this circuit.
Inventors
- 👤 Lothar Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:28
CPC Classifications
B; B03; B03C; B03C1/00; B03C1/02; B03C1/10; B03C1/14
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
125 words
A magnetic separator for the removal of magnetically permeable substances from a mass containing same in combination with nonmagnetic substances, comprising a magnetically permeable body having a pair of magnetic pole faces closed within said body in a magnetic circuit and open across a gap between said faces along the periphery of said body; and electromagnetic coil means in said body for establishing a magnetic field through said circuit, said coil means being constituted at least in part of a ferromagnetic coil having a plurality of electrically insulated turns of a ferromagnetic conductor lying in said circuit away from said pole faces and forming part of said magnetic circuit without obstructing the magnetic field in the space externally of said body between said pole faces.
Claim 2
Dependent Claim
125 words
A magnetic separator for the removal of magnetically permeable substances from a mass containing same in combination with nonmagnetic substances, comprising a magnetically permeable body having a pair of magnetic pole faces closed within said body in a magnetic circuit and open across a gap between said faces along the periphery of said body; and electromagnetic coil means in said body for establishing a magnetic field through said circuit, said coil means being constituted at least in part of a ferromagnetic coil having a plurality of electrically insulated turns of a ferromagnetic conductor lying in said circuit away from said pole faces and forming part of said magnetic circuit without obstructing the magnetic field in the space externally of said body between said pole faces.
Claim 3
Dependent Claim
42 words
The magnetic separator defined in claim 1 wherein said magnetic circuit includes at least one magnetic pole member, said ferromagnetic coil surrounding said pole member and inducing the magnetic field therein while increasing the flux traversing cross section of said pole member.
Claim 4
Dependent Claim
59 words
The separator defined in claim 1 wherein said magnetic circuit comprises a yoke having a pair of pole members and a bridge member magnetically connecting said pole members, said ferromagnetic coil surrounding said bridge member for inducing a magnetic flux therethrough upon electrical energization of said ferromagnetic coil while increasing the flux traversing cross section of said bridge member.
Claim 5
Dependent Claim
19 words
The separator defined in claim 1 wherein said ferromagnetic conductor forms a magnetically permeable bridge between said pole faces.
Claim 6
Dependent Claim
58 words
The separator defined in claim 1 wherein the turns of said ferromagnetic coil are interleaved with turns of a nonferromagnetic coil electrically energized in parallel with said ferromagnetic coil, said coils being provided with insulation means between the turns of said ferromagnetic and nonferromagnetic coils whereby the turns of said ferromagnetic coils are electrically insulated from one another.
Claim 7
Dependent Claim
21 words
The separator defined in claim 1 wherein said turns are provided with an oxide layer electrically insulating them from one another.
Claim 8
Dependent Claim
28 words
The separator defined in claim 1 wherein each of said turns is formed as a respective ferromagnetic disc and said ferromagnetic coil is a stack of such discs.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |