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US3356489A Expired / Lapsed US ⏱️ 0.0 years remaining

Method and apparatus for treating metallic melts

Assignee: Georg Fischer AG
•
Filing: 1965-02-24
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Granted: 1967-12-05
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Expires: 1985-02-24
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Abstract

No abstract record available.

Inventors

  • 👤 Feichtinger Heinrich

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 02:53
CPC Classifications
C; C21; C21C; C21C7/00; C21C7/0037; C21C7/0043; C21C7/0056; C22; C22B; C22B9/00; C22B9/10; C22B9/103

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 163 words
A METHOD OF TREATING METALLIC MELTS IN A CONTINUOUS FLOW THROUGH A TREAMENT CHAMBER HAVING AN INLET AND AN OUTLET, WHICH INCLUDES THE STEPS OF; INTRODUCING THE MELT TO BE TREATED INTO SAID TREATMENT CHAMBER WHILE SPLITTING SAID INTRODUCED MELT INTO A FIRST PORTION AND A SECOND PORTION, PASSING SAID FIRST PORTION ALONG THE WALL SUREFACE OF SAID TREATMENT CHAMBER IN THE DIRECTION TOWARD SAID OUTLET WHILE PASSING SAID SECOND PORTION LIKEWISE IN THE DIRECTION TOWARD SAID OUTLET IN THE THE FORM OF A CENTRAL STREAM THROUGH A PORTION OF SAID CHAMBER IN SPACED RELATIONSHIP TO SAID SECOND PORTION, PRIOR TO SAID CENTRAL STREAM REACHING SAID OUTLET INTRODUCING MATERIAL TO BE ADDED TO SAID MELT INTO SAID STREAM SO AS TO CAUSE SAID MATERIAL IN AN EXPLOSION-LIKE MANNER TO BREAK UP INTO FINE PARTICLES AND TO BE THROWN INTO SAID SECOND PORTION FLOWING ALONG SAID WALL SURFACE FOR INTERMIXTURE THEREWITH, AND UNITING SAID FIRST AND SECOND PORTIONS PRIOR TO THEIR LEAVING SAID OUTLET.
Claim 2
Independent Claim 163 words
A METHOD OF TREATING METALLIC MELTS IN A CONTINUOUS FLOW THROUGH A TREAMENT CHAMBER HAVING AN INLET AND AN OUTLET, WHICH INCLUDES THE STEPS OF; INTRODUCING THE MELT TO BE TREATED INTO SAID TREATMENT CHAMBER WHILE SPLITTING SAID INTRODUCED MELT INTO A FIRST PORTION AND A SECOND PORTION, PASSING SAID FIRST PORTION ALONG THE WALL SUREFACE OF SAID TREATMENT CHAMBER IN THE DIRECTION TOWARD SAID OUTLET WHILE PASSING SAID SECOND PORTION LIKEWISE IN THE DIRECTION TOWARD SAID OUTLET IN THE THE FORM OF A CENTRAL STREAM THROUGH A PORTION OF SAID CHAMBER IN SPACED RELATIONSHIP TO SAID SECOND PORTION, PRIOR TO SAID CENTRAL STREAM REACHING SAID OUTLET INTRODUCING MATERIAL TO BE ADDED TO SAID MELT INTO SAID STREAM SO AS TO CAUSE SAID MATERIAL IN AN EXPLOSION-LIKE MANNER TO BREAK UP INTO FINE PARTICLES AND TO BE THROWN INTO SAID SECOND PORTION FLOWING ALONG SAID WALL SURFACE FOR INTERMIXTURE THEREWITH, AND UNITING SAID FIRST AND SECOND PORTIONS PRIOR TO THEIR LEAVING SAID OUTLET.
Claim 3
Independent Claim 174 words
AN APPARATUS FOR TREATING METALLIC MELTS IN A CONTINUOUS MANNER, WHICH INCLUDES: A VESSEL FOR RECEIVING THE MELT TO BE TREATED, SAID VESSEL HAVING A DISCHARGE OPENING IN THE LOWER PORTION THEREOF, A CHAMBER ARRANGED BELOW SAID VESSEL AND HAVING AN UPPER INLET FOR COMMUNICATION WITH SAID DISCHARGE OPENING AND ALSO HAVING A LOWER OUTLET FOR DISCHARGING TREAT MELT, SAID CHAMBER INCLUDING AN UPPER SECTION FLARING DOWNWARDLY DIRECTED PASSAGE MEANS TAPERING DOWNWARDLY IN THE DIRECTION TOWARD SAID OUTLET, AND DIVIDING MEANS ARRANGED IN SID UPPER SECTION AND HAVING ITS CENTRAL PORTION PROVIDED WITH FIRST DOWNWARDLY DIRECTED PASSAGE MEANS AND HAVING ITS MARGINAL AREA PROVIDED WITH SECOND DOWNWARDLY DIRECTED PASSAGE MEANS FOR SPLITTING THE MELT ENTERING SAID UPPER SECTION INTO A MARGINAL FLOW ALONG THE WALL SURFACE OF SAID UPPER SECTION AND INTO A CENTRAL FLOW SPACED FROM SAID MARGINAL FLOW, SAID CHAMBER BEING PROVIDED WITH PASSAGE MEANS ARRANGED BELOW SAID DIVIDING MEANS AND EXTENDING INTO SAID CHAMBER BELOW SAID DIVIDING MEANS FOR FEEDING MATERIAL TO BE ADDED TO THE MELT INTO SAID LOWER SECTION.
Claim 4
Independent Claim 174 words
AN APPARATUS FOR TREATING METALLIC MELTS IN A CONTINUOUS MANNER, WHICH INCLUDES: A VESSEL FOR RECEIVING THE MELT TO BE TREATED, SAID VESSEL HAVING A DISCHARGE OPENING IN THE LOWER PORTION THEREOF, A CHAMBER ARRANGED BELOW SAID VESSEL AND HAVING AN UPPER INLET FOR COMMUNICATION WITH SAID DISCHARGE OPENING AND ALSO HAVING A LOWER OUTLET FOR DISCHARGING TREAT MELT, SAID CHAMBER INCLUDING AN UPPER SECTION FLARING DOWNWARDLY DIRECTED PASSAGE MEANS TAPERING DOWNWARDLY IN THE DIRECTION TOWARD SAID OUTLET, AND DIVIDING MEANS ARRANGED IN SID UPPER SECTION AND HAVING ITS CENTRAL PORTION PROVIDED WITH FIRST DOWNWARDLY DIRECTED PASSAGE MEANS AND HAVING ITS MARGINAL AREA PROVIDED WITH SECOND DOWNWARDLY DIRECTED PASSAGE MEANS FOR SPLITTING THE MELT ENTERING SAID UPPER SECTION INTO A MARGINAL FLOW ALONG THE WALL SURFACE OF SAID UPPER SECTION AND INTO A CENTRAL FLOW SPACED FROM SAID MARGINAL FLOW, SAID CHAMBER BEING PROVIDED WITH PASSAGE MEANS ARRANGED BELOW SAID DIVIDING MEANS AND EXTENDING INTO SAID CHAMBER BELOW SAID DIVIDING MEANS FOR FEEDING MATERIAL TO BE ADDED TO THE MELT INTO SAID LOWER SECTION.

References Cited (Backward Citations)

US2997386A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1970-12-04 1971-06-05 1971-12-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1974-12-04 1975-06-05 1975-12-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1978-12-04 1979-06-05 1979-12-05 $7700.00 Window Closed / Lapsed

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