Patent US4558671A successfully refreshed from Google Patents.
Patent US4066537A successfully refreshed from Google Patents.
US4066537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wet magnetic separation of materials
Assignee: Individual
•
Filing: 1976-03-15
•
Granted: 1978-01-03
•
Expires: 1996-03-15
Abstract
Abstract Apparatus for the magnetic separation of feebly magnetic materials from a slurry comprises a number of matrix containers which are movable along a path between a number of pole pairs. The slurry passes through the matrix containers and is received in launders under the path, the non-magnetic constituents being collected in launders below the pole pairs and the feebly magnetic constituents in zones of low magnetic intensity. The matrix containers can be removed from the path individually for cleaning.
Inventors
- 👤 Georg Josef Bernfeld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:48
CPC Classifications
B; B03; B03C; B03C1/00; B03C1/02; B03C1/025; B03C1/029
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
196 words
In a separator of the type including: magnetic means for establishing zones of high and low magnetic density; matrix container units comprising a series of separate matrix container units which are movable in a path through said zones of high and low magnetic intensity; matrix means within each matrix container unit; feed means supplying slurry to said matrix container means; washing means for washing out material entrapped in the matrix means; launder means receiving respectively matter passing through said matrix container means at at least said high magnetic intensity zone and said low magnetic intensity zone; and moving means operatively connected to said container means for moving said matrix container means through said high and low magnetic intensity zones; the improvement wherein the moving means comprises a path through said zones established by said magnetic means, means for transferring said container units onto said path, and means for providing a moving force to said units to move the container units as a continuous matrix through the magnetic zones, and wherein the matrix container units are removable and replaceable when in the means for transferring without interrupting the continuous movement of the container units along said path.
Claim 2
Dependent Claim
196 words
In a separator of the type including: magnetic means for establishing zones of high and low magnetic density; matrix container units comprising a series of separate matrix container units which are movable in a path through said zones of high and low magnetic intensity; matrix means within each matrix container unit; feed means supplying slurry to said matrix container means; washing means for washing out material entrapped in the matrix means; launder means receiving respectively matter passing through said matrix container means at at least said high magnetic intensity zone and said low magnetic intensity zone; and moving means operatively connected to said container means for moving said matrix container means through said high and low magnetic intensity zones; the improvement wherein the moving means comprises a path through said zones established by said magnetic means, means for transferring said container units onto said path, and means for providing a moving force to said units to move the container units as a continuous matrix through the magnetic zones, and wherein the matrix container units are removable and replaceable when in the means for transferring without interrupting the continuous movement of the container units along said path.
Claim 3
Dependent Claim
34 words
The separator claimed in claim 1 in which the path comprises two straight sections and said path sections are joined by said means for transferring, said means for transferring comprising straight horizontal transfer sections.
Claim 4
Dependent Claim
19 words
The separator claimed in claim 1 in which the matrix means is removably received within the matrix container unit.
Claim 5
Dependent Claim
38 words
The separator claimed in claim 1 further comprising pulling means for pulling the matrix container means through the said path and additionally each matrix container unit has releasable connecting means connecting together matrix container units on the path.
Claim 6
Dependent Claim
33 words
The separator claimed in claim 1 wherein each matrix container comprises side members and ends between which the matrix is secured and wherein the ends of the matrix containers butt against each other.
Claim 7
Dependent Claim
54 words
The separator claimed in claim 1 further comprising pulling means for pulling the matrix container units along the path, wherein the said matrix container units each having end walls and on one of the said end wall a lip which passes over the other of the said end walls of an adjacent matrix container.
Claim 8
Dependent Claim
20 words
The separator claimed in claim 6 in which each matrix container unit has side walls extending upwardly beyond the lips.
Claim 9
Dependent Claim
26 words
The separator claimed in claim 1 in which the matrix container units removably receive carriers and in which the matrix means are carried in the carriers.
Claim 10
Dependent Claim
28 words
The separator claimed in claim 8 further comprising conveyor means located above the path and including means to engage and remove the carriers from the matrix container units.
Claim 11
Dependent Claim
27 words
The separator claimed in claim 1 in which the feed means includes means whereby the slurry is fed to the container units at a very low pressure.
Claim 12
Dependent Claim
39 words
The separator claimed in claim 10 in which the said means comprises a receiver into which the feed means discharges the slurry the said receiver having weir means over which the slurry passes to enter the matrix container units.
Claim 13
Dependent Claim
23 words
The separator claimed in claim 11 in which the matrix container units have sides that extend above the upper edge of the weir.
Claim 14
Dependent Claim
48 words
The separator claimed in claim 1 wherein said magnetic means comprises at least one pole pair and the direction of movement of the matrix containers in each path, the lines of force between the pole pairs and the feed direction of the slurry are mutually at right angles.
Claim 15
Dependent Claim
50 words
The separator claimed in claim 13 wherein the length of each matrix container is greater than the length of each pole pair, and further comprising guide means located on either side of each pole pair engaging and rigidly holding the matrix container units as they pass between the pole pair.
Claim 16
Dependent Claim
31 words
The separator claimed in claim 14 wherein the container units have rigid side pieces, each having a guiding groove therein and the guide means comprise noses slidably received in the grooves.
References Cited (Backward Citations)
US2642994A
Cited
US2862764A
Cited
US3147212A
Cited
US3158171A
Cited
US3352403A
Cited
US3375925A
Cited
DE2130560A1
Cited
US3822016A
Cited
US3920543A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-01-02 | 1981-07-04 | 1982-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-02 | 1985-07-04 | 1986-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-02 | 1989-07-04 | 1990-01-03 | $7700.00 | Window Closed / Lapsed |