Patent EP0589279A2 successfully refreshed from Google Patents.
Patent US4266982A successfully refreshed from Google Patents.
US4266982A
Expired / Lapsed
US
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Method and apparatus for cleaning a matrix of a wet magnetic separator
Assignee: Kloeckner Humboldt Deutz AG
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Filing: 1979-07-18
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Granted: 1981-05-12
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Expires: 1999-07-18
Abstract
Abstract A method and apparatus are disclosed for cleansing a matrix of a magnetic separator and more particularly a wet-magnetic separator having adherent magnetic material. The matrix is cleansed both with a liquid medium and an additional gaseous compressible medium. The introduction of the compressible medium is controlled in accordance with a measure of the adherent magnetic material present.
Inventors
- 👤 Hans Bender
- 👤 Rupprecht Graf
- 👤 Karl-Heinz Unkelbach
- 👤 Wolf Zabel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:58
CPC Classifications
B; B03; B03C; B03C1/00; B03C1/02; B03C1/025; B03C1/031; B03C1/032
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
61 words
In a method for cleansing a matrix of a wet magnetic separator loaded with adherent magnetic material wherein the matrix is cleaned with a liquid medium and a compressible gas, the improvement comprising the steps of measuring the extent of loading of the magnetic material and initiating the cleaning with the compressible gas upon exceeding a given threshold value of loading.
Claim 2
Dependent Claim
61 words
In a method for cleansing a matrix of a wet magnetic separator loaded with adherent magnetic material wherein the matrix is cleaned with a liquid medium and a compressible gas, the improvement comprising the steps of measuring the extent of loading of the magnetic material and initiating the cleaning with the compressible gas upon exceeding a given threshold value of loading.
Claim 3
Dependent Claim
27 words
A method according to claim 1 including the step of determining the extent of loading of the matrix with magnetic material by means of a permeability measurement.
Claim 4
Dependent Claim
17 words
A method according to claim 2 including the step of performing the permeability measurement by optical measurement.
Claim 5
Dependent Claim
28 words
A method according to claim 2 including the step of performing the permeability measurement by a pressure head measurement which measures a pressure drop of a flowing medium.
Claim 6
Dependent Claim
66 words
A magnetic separator matrix cleansing system comprising: a magnetic separator matrix loaded with adherent magnetic material; means for introducing a liquid medium and a compressible gaseous medium into the matrix for cleansing thereof; and means for measuring an extent of the loading with magnetic material; and control means for selectively introducing the compressible gaseous medium in accordance with the measure of the adherent magnetic material present.
Claim 7
Dependent Claim
66 words
A magnetic separator matrix cleansing system comprising: a magnetic separator matrix loaded with adherent magnetic material; means for introducing a liquid medium and a compressible gaseous medium into the matrix for cleansing thereof; and means for measuring an extent of the loading with magnetic material; and control means for selectively introducing the compressible gaseous medium in accordance with the measure of the adherent magnetic material present.
Claim 8
Dependent Claim
20 words
A system according to claim 5 wherein a time cycle indictor in effective connection with an electromechanical valve is provided.
Claim 9
Dependent Claim
34 words
A system according to claim 5 wherein a source of light and a corresponding light receiver is provided with passages of the matrix therebetween, the light receiver being connected to control an electromechanical valve.
Claim 10
Dependent Claim
26 words
A system according to claim 5 wherein a source of light and a brightness detector are provided, the detector being connected to control an electromechanical valve.
Claim 11
Dependent Claim
36 words
A system according to claim 5 wherein a blower nozzle as well as a flow measuring device are provided with passages of the matrix therebetween, the flow measuring device being connected to control an electromechanical valve.
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) | 1984-05-11 | 1984-11-10 | 1985-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-11 | 1988-11-10 | 1989-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-11 | 1992-11-10 | 1993-05-12 | $7700.00 | Window Closed / Lapsed |