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US3708964A Expired / Lapsed US ⏱️ 0.0 years remaining

Device for the separation of gaseous or vaporous substances, especially isotopes, with different molecular weights and/or different gas kinetic cross sections

Assignee: Gesellschaft fuer Kernforschung mbH
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Filing: 1969-09-30
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Granted: 1973-01-09
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Expires: 1989-09-30
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Abstract

Abstract A device for the separation of gaseous isotopes includes a tube divided by partition walls into feed lines and discharge lines, the partition walls extending radially outwards into the wall of the tube substantially to the outer surface of the wall. Gas conducting elements conduct a mixture of isotopes around the ends of the partition walls where the mixture is separated into a light fraction and a heavy fraction.

Inventors

  • 👤 E Becker
  • 👤 R Schutte

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 23:03
CPC Classifications
B; B01; B01D; B01D59/00; B01D59/10; B01D59/18

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 205 words
A device for the separation of gaseous or vaporous substances especially isotopes, comprising a tube, partition wall means in said tube for separating its interior into adjoining feed line means and discharge line means, the partition wall means including partition walls extending radially into penetrations in the wall of said tube substantially to the outer surface of said tube, mEans arranged at the location of said penetrations for directing a feed gas mixture from said feed line means around the radially outer ends of said partition walls and separating it into a light fraction and a heavy fraction, the means for directing passing the heavy fraction into said discharge line means, inlet means for said feed line means and outlet means for said discharge line means; said means for directing including gas ducting devices attached to the outside of the tube wall, which devices are designed as curved nozzle walls and as a skimmer diaphragm at their ends facing the radially outer ends of said partition walls forming outlet means for removal of the light fraction; said gas ducting devices being fixed by spacers relative to each other and relative to the radially outer ends of said partition walls at intervals along the tube circumference.
Claim 2
Independent Claim 205 words
A device for the separation of gaseous or vaporous substances especially isotopes, comprising a tube, partition wall means in said tube for separating its interior into adjoining feed line means and discharge line means, the partition wall means including partition walls extending radially into penetrations in the wall of said tube substantially to the outer surface of said tube, mEans arranged at the location of said penetrations for directing a feed gas mixture from said feed line means around the radially outer ends of said partition walls and separating it into a light fraction and a heavy fraction, the means for directing passing the heavy fraction into said discharge line means, inlet means for said feed line means and outlet means for said discharge line means; said means for directing including gas ducting devices attached to the outside of the tube wall, which devices are designed as curved nozzle walls and as a skimmer diaphragm at their ends facing the radially outer ends of said partition walls forming outlet means for removal of the light fraction; said gas ducting devices being fixed by spacers relative to each other and relative to the radially outer ends of said partition walls at intervals along the tube circumference.
Claim 3
Dependent Claim 48 words
Device as claimed in claim 1, wherein the spacers have crane hook-like extensions the outside curvature of which is adapted to the radially outer ends of said partition walls and the inside curvature of which encloses the end of a gas ducting device adjoining said feed line means.
Claim 4
Independent Claim 244 words
A device for the separation of gaseous or vaporous substances especially isotopes, comprising a tube, partition wall means in said tube for separating its interior into adjoining feed line means and discharge line means, the partition wall means including partition walls extending radially into penetrations in the wall of said tube substantially to the outer surface of said tube, means arranged at the location of said penetrations for directing a feed gas mixture from said feed line means around the radially outer ends of said partition walls and separating it into a light fraction and a heavy fraction, the means for directing passing the heavy fraction into said discharge line means, inlet means for said feed line means and outlet means for said discharge line means; said means for directing including gas ducting devices attached to the outside of the tube wall, which devices are designed as curved nozzle walls and as a skimmer diaphragm at their ends facing the radially outer ends of said partition walls forming outlet means for removal of the light fraction; said gas ducting devices being formed out of a common massive profile strip carrying a nozzle lip and a skimmer and having penetrations for the passage of the light fraction, the profile strip and the tube having corresponding lugs and recesses equipped with alignment fitting means for fixing the position of the nozzle lip and the skimmer diaphragm relative to the radially outer ends of said partition walls.
Claim 5
Independent Claim 244 words
A device for the separation of gaseous or vaporous substances especially isotopes, comprising a tube, partition wall means in said tube for separating its interior into adjoining feed line means and discharge line means, the partition wall means including partition walls extending radially into penetrations in the wall of said tube substantially to the outer surface of said tube, means arranged at the location of said penetrations for directing a feed gas mixture from said feed line means around the radially outer ends of said partition walls and separating it into a light fraction and a heavy fraction, the means for directing passing the heavy fraction into said discharge line means, inlet means for said feed line means and outlet means for said discharge line means; said means for directing including gas ducting devices attached to the outside of the tube wall, which devices are designed as curved nozzle walls and as a skimmer diaphragm at their ends facing the radially outer ends of said partition walls forming outlet means for removal of the light fraction; said gas ducting devices being formed out of a common massive profile strip carrying a nozzle lip and a skimmer and having penetrations for the passage of the light fraction, the profile strip and the tube having corresponding lugs and recesses equipped with alignment fitting means for fixing the position of the nozzle lip and the skimmer diaphragm relative to the radially outer ends of said partition walls.
Claim 6
Independent Claim 323 words
A device for the separation of gaseous or vaporous substances especially isotopes, comprising a tube, partition wall means in said tube for separating its interior into adjoining feed line means and discharge line means, the partition wall means including partition walls extending radially into penetrations in the wall of said tube substantially to the outer surface of said tube, means arranged at the location of said penetrations for directing a feed gas mixture from said feed line means around the radially outer ends of said partition walls and separating it into a light fraction and a heavy fraction, the means for directing passing the heavy fraction into said discharge line means, inlet means for said feed line means and outlet means for said discharge line means; said means for directing including gas ducting devices attached to the outside of the tube wall, which devices are designed as curved nozzle walls and as a skimmer diaphragm at their ends facing the radially outer ends of said partition walls forming outlet means for removal of the light fraction; said gas ducting devices being formed out of a common massive profile strip carrying a nozzle lip and a skimmer and having penetrations for the passage of the light fraction, said profile strip being assembled into a unit set on the tube with a fitting piece including a deflection wall and penetrations for the feed gas and the heavy fraction, said profile strip and the tube and fitting piece, respectively, having fins arranged like racks on at least one of the feed line means side and the discharge line means side for the heavy fraction, which fins are supported with their free front sides on the corresponding contact surfaces of the opposite fitting piece, the contact surfaces being so designed that after assembly of the profile strip, tube and fitting piece the nozzle lip and the skimmer diaphragm have a preset position relative to the deflection wall.
Claim 7
Independent Claim 323 words
A device for the separation of gaseous or vaporous substances especially isotopes, comprising a tube, partition wall means in said tube for separating its interior into adjoining feed line means and discharge line means, the partition wall means including partition walls extending radially into penetrations in the wall of said tube substantially to the outer surface of said tube, means arranged at the location of said penetrations for directing a feed gas mixture from said feed line means around the radially outer ends of said partition walls and separating it into a light fraction and a heavy fraction, the means for directing passing the heavy fraction into said discharge line means, inlet means for said feed line means and outlet means for said discharge line means; said means for directing including gas ducting devices attached to the outside of the tube wall, which devices are designed as curved nozzle walls and as a skimmer diaphragm at their ends facing the radially outer ends of said partition walls forming outlet means for removal of the light fraction; said gas ducting devices being formed out of a common massive profile strip carrying a nozzle lip and a skimmer and having penetrations for the passage of the light fraction, said profile strip being assembled into a unit set on the tube with a fitting piece including a deflection wall and penetrations for the feed gas and the heavy fraction, said profile strip and the tube and fitting piece, respectively, having fins arranged like racks on at least one of the feed line means side and the discharge line means side for the heavy fraction, which fins are supported with their free front sides on the corresponding contact surfaces of the opposite fitting piece, the contact surfaces being so designed that after assembly of the profile strip, tube and fitting piece the nozzle lip and the skimmer diaphragm have a preset position relative to the deflection wall.
Claim 8
Dependent Claim 26 words
Device as claimed in claim 4, wherein the assembled profile strip, tube, and fitting piece are positively connected with each other perpendicularly to the tube axis.
Claim 9
Dependent Claim 350 words
A separation stage for the separation of gaseous or vaporous substances especially isotopes, comprising at least two devices, each said device comprising a tube, partition wall means in said tube for separating its interior into adjoining feed line means and discharge line means, the partition wall means including partition walls extending radially into penetrations in the wall of said tube substantially to the outer surface of said tube, means arranged at the location of said penetrations for directing a feed gas mixture from said feed line means around the radially outer ends of said partition walls and separating it into a light fraction and a heavy fraction, the means for directing passing the heavy fraction into said discharge means and including outlet means for radial movement of the light fraction; one common container housing said devices and accomodating the light fractions radially leaving said devices; said devices penetrating with their ends through two opposite wall sections of said container, one collection chamber each following these wall sections being equipped with a connection for feeding the feed gas and withdrawing the heavy fraction, respectively, the feed line means and the discharge line means of said devices being unilaterally closed at opposed ends; the container for withdrawal of the light fraction being connected with the suction pipe of a compressor, with at least final cooling, via a suction line centrally penetrating through the collection chamber for the feed of the feed gas and another collection chamber being provided for the compressed and cooled light fraction which concentrically surrounds the suction line with a pipe connection, this other collection chamber having one partition wall in common with the collection chamber for the feed gas; further comprising a heavy fraction receiving tube introduced into the area of the suction opening of the suction line, which heavy fraction receiving tube is provided with means for connection with another separation stage, the orifice of the heavy fraction receiving tube at the suction opening having the shape of a nozzle and forming a jet pump with a diffusor-like opening of the suction line for the light fraction.
Claim 10
Dependent Claim 350 words
A separation stage for the separation of gaseous or vaporous substances especially isotopes, comprising at least two devices, each said device comprising a tube, partition wall means in said tube for separating its interior into adjoining feed line means and discharge line means, the partition wall means including partition walls extending radially into penetrations in the wall of said tube substantially to the outer surface of said tube, means arranged at the location of said penetrations for directing a feed gas mixture from said feed line means around the radially outer ends of said partition walls and separating it into a light fraction and a heavy fraction, the means for directing passing the heavy fraction into said discharge means and including outlet means for radial movement of the light fraction; one common container housing said devices and accomodating the light fractions radially leaving said devices; said devices penetrating with their ends through two opposite wall sections of said container, one collection chamber each following these wall sections being equipped with a connection for feeding the feed gas and withdrawing the heavy fraction, respectively, the feed line means and the discharge line means of said devices being unilaterally closed at opposed ends; the container for withdrawal of the light fraction being connected with the suction pipe of a compressor, with at least final cooling, via a suction line centrally penetrating through the collection chamber for the feed of the feed gas and another collection chamber being provided for the compressed and cooled light fraction which concentrically surrounds the suction line with a pipe connection, this other collection chamber having one partition wall in common with the collection chamber for the feed gas; further comprising a heavy fraction receiving tube introduced into the area of the suction opening of the suction line, which heavy fraction receiving tube is provided with means for connection with another separation stage, the orifice of the heavy fraction receiving tube at the suction opening having the shape of a nozzle and forming a jet pump with a diffusor-like opening of the suction line for the light fraction.
Claim 11
Dependent Claim 17 words
Device as claimed in claim 6, wherein the cross section of the nozzle shaped orifice is variable.
Claim 12
Dependent Claim 39 words
Device as claimed in claim 7, further comprising a regulating needle of a shape with favorable flow characteristics provided in the area of the orifice, which needle can be displaced in the direction of the axis of the nozzle.
Claim 13
Dependent Claim 54 words
Device as claimed in claim 7, wherein the container with the following collection chambers and the suction line, the compressor, including cooler and gas regulation device are combined in a replaceable, mostly cylindrical unit carrying on its periphery connection pipes for introducing and discharging the feed gas and the heavy and light fractions, respectively.

References Cited (Backward Citations)

US3362131A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-01-09 1976-07-10 1977-01-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-01-09 1980-07-10 1981-01-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-01-09 1984-07-10 1985-01-09 $7700.00 Window Closed / Lapsed

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