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US3362796A Expired / Lapsed US ⏱️ 0.0 years remaining

Recovery of sulphur from ores

Assignee: INST CT AMERICANO DE INVESTIGA
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Filing: 1965-04-19
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Granted: 1968-01-09
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Expires: 1985-04-19
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Abstract

No abstract record available.

Inventors

  • 👤 Edward J Jefferies

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 17:00
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/02; C01B17/06

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 198 words
THE PROCESS FOR RECOVERING SULPHUR FROM A CLOSED VESSEL CONTAINING SUBLIMED VAPOR AND AN INERT GAS COMPRISING, CONTACTING A HIGH VELOCITY JET OF AN INERT GAS WITH A PORTION OF SAID SULPHUR VAPOR, (I) SAID JET OF INERT GAS BEING AT A TEMPERATURE BELOW ABOUT 106*C., (II) SAID SULPHUR VAPOR BEING AT A TEMPERATURE SIGNIFICANTLY ABOVE THE TEMPERATURE OF SAID JET OF INERT GAS, (III) SAID JET OF INERT GAS BEING DIRECTED INTO A VENTURI ZONE SPACED FROM SAID JET, AND (IV) SAID JET OF INERT GAS AND SAID VENTURI ZONE BEING POSITIONED IN A PATH COMMUNICATING WITH THE SOURCE OF SUBLIMED SULPHUR VAPOR, SAID PATH OPENING INTO THE SPACE BETWEENT THE SAID JET AND SAID VENTURI ZONE, WHEREBY THE SULPHUR VAPOR IS COOLED TO A TEMPERATURE WHICH IS BETWEEN 90* AND 106.8*C. AND ABOVE THE TEMPERATURE OF SAID JET OF INERT GAS, AND SOLIDIFIED AS FINALLY DIVIDED PARTICLES SUSPENDED IN THE STREAM OF INERT GAS BY WHICH IT WAS COOLED, AND WHEREBY SAID SOLIDIFIED PARTICLES AND SAID STREAM OF INERT GAS USED TO COOL SAID PARTICLES ENTER SAID VENTURI ZONE, AND CONDUCTING SAID STREAM TO A SEPARATING ZONE AND SEPARATING SAID SULPHUR PARTICLES FROM SAID INERT GAS.
Claim 2
Dependent Claim 198 words
THE PROCESS FOR RECOVERING SULPHUR FROM A CLOSED VESSEL CONTAINING SUBLIMED VAPOR AND AN INERT GAS COMPRISING, CONTACTING A HIGH VELOCITY JET OF AN INERT GAS WITH A PORTION OF SAID SULPHUR VAPOR, (I) SAID JET OF INERT GAS BEING AT A TEMPERATURE BELOW ABOUT 106*C., (II) SAID SULPHUR VAPOR BEING AT A TEMPERATURE SIGNIFICANTLY ABOVE THE TEMPERATURE OF SAID JET OF INERT GAS, (III) SAID JET OF INERT GAS BEING DIRECTED INTO A VENTURI ZONE SPACED FROM SAID JET, AND (IV) SAID JET OF INERT GAS AND SAID VENTURI ZONE BEING POSITIONED IN A PATH COMMUNICATING WITH THE SOURCE OF SUBLIMED SULPHUR VAPOR, SAID PATH OPENING INTO THE SPACE BETWEENT THE SAID JET AND SAID VENTURI ZONE, WHEREBY THE SULPHUR VAPOR IS COOLED TO A TEMPERATURE WHICH IS BETWEEN 90* AND 106.8*C. AND ABOVE THE TEMPERATURE OF SAID JET OF INERT GAS, AND SOLIDIFIED AS FINALLY DIVIDED PARTICLES SUSPENDED IN THE STREAM OF INERT GAS BY WHICH IT WAS COOLED, AND WHEREBY SAID SOLIDIFIED PARTICLES AND SAID STREAM OF INERT GAS USED TO COOL SAID PARTICLES ENTER SAID VENTURI ZONE, AND CONDUCTING SAID STREAM TO A SEPARATING ZONE AND SEPARATING SAID SULPHUR PARTICLES FROM SAID INERT GAS.

References Cited (Backward Citations)

US1478750A Cited
US1518126A Cited
US1613632A Cited
US1773562A Cited
US1919307A Cited
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US2629133A Cited
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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) 1971-01-08 1971-07-10 1972-01-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1975-01-08 1975-07-10 1976-01-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1979-01-08 1979-07-10 1980-01-09 $7700.00 Window Closed / Lapsed

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