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US3672872A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of separation of a substance in a solid or liquid phase from a matrix in the liquid phase

Assignee: Bpifrance Financement SA
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Filing: 1970-06-01
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Granted: 1972-06-27
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Expires: 1990-06-01
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Abstract

Abstract A METHOD OF SEPARATION OF A SUBSTANCE IN A SOLID OR LIQUID PHASE FROM A MATRIX IN THE LIQUID PHASE, AT HIGH TEMPERATURE, BY THE CREATION OF AN ALTERNATING MAGNETIC FIELD OF MEDIUM FREQUENCY IN THE COMPOSITE MIXTURE FORMED BY SAID SUBSTANCE AND SAID MATRIX, FOLLOWED BY A SOLIDIFICATION TEMPERING ACTION. A DEVICE FOR CARRYING THE METHOD INTO EFFECT COMPRISES A CRUCIBLE, HEATING MEANS FOR THE CRUCIBLE, AN INDUCTOR WINDING AROUND THE SAID CRUCIBLE, AND FURTHER COMPRISES A MEDIUM-FREQUENCY ALTERNATINGCURRENT GENERATOR, OF 10 KILOCYLES FOR EXAMPLE, ASSOCIATED WITH THE WINDING. THE INDUCTOR WINDING ON THE CRUCIBLE MAY SERVE SIMULTANEOUSLY AS THE HEATING MEANS FOR THE CRUCIBLE AND THE ELECTRO-MAGNETIC SEPARATING MEANS, OR THE HEATING MAY BE INDEPENDENT OF THE ELECTRO-MAGNETIC MEANS AND MAY BE CONSTITUTED BY AN ELECTRICAL RESISTANCE.

Inventors

  • 👤 Etienne Bonnier
  • 👤 Colette Allibert
  • 👤 Jean Driole
  • 👤 Alain Wicker

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 04:40
CPC Classifications
C; C22; C22B; C22B9/00; C22B9/02; C22B4/00; Y; Y02; Y02P; Y02P10/00; Y02P10/20

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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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) 1975-06-27 1975-12-27 1976-06-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-06-27 1979-12-27 1980-06-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-06-27 1983-12-27 1984-06-27 $7700.00 Window Closed / Lapsed

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