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US3990634A Expired / Lapsed US ⏱️ 0.0 years remaining

Method and apparatus for the continuous multiplied enrichment of gaseous isotopes of heavy elements

Assignee: Individual
•
Filing: 1973-12-06
•
Granted: 1976-11-09
•
Expires: 1993-12-06
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Abstract

Abstract A method and apparatus for the continuous multiplied enrichment of gaseous isotopes of heavy elements by means of gravity-and expanding pressure fields and gas circulation is disclosed. The method is carried out in a pipe or tube with a smooth inner surface and having an inlet and first and second discharge means. One or several nozzles are arranged adjacent the inlet and extend in a plane perpendicular to the pipe axis so as to discharge tangentially relative to the inside pipe circumference. The first discharge means is formed by annular slots situated at the inner circumference of the pipe or it is formed in the region of the pipe axis. In an alternative embodiment of the pipe, the first discharge means is in the form of openings extending tangentially from the inner pipe circumference. The second discharge means is spaced from the first discharge means and is in the form of an annular aperture adjacent the pipe axis and in the vicinity of the inlet. According to the inventive method and apparatus, a gaseous isotope mixture to be separated is forced under pressure through the nozzles and thus into the pipe, whereby a rotary flow of the gaseous mixture builds up within said pipe which is propelled by subsequently incoming amounts of gas mixture. The rotary flow extends to the first discharge means and also generates a suction force within the pipe adjacent the inlet. The gas mixture, due to the rotary flow, is divided into a first portion enriched with heavy isotopes due to the occurring centrifugal forces and a second portion containing lighter isotopes. The first portion exits at least partially through the first discharge means of the pipe while the second portion flows in opposite direction towards the second discharge means, whereby the second portion, at least partially, is sucked in by the suction force and thus is caused repeatedly to circulate, thereby increasing the enrichment effect.

Inventors

  • 👤 Franz Hejlek

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 02:02
CPC Classifications
B; B01; B01D; B01D59/00; B01D59/20; B01D59/10; B01D59/18; Y; Y10; Y10S; Y10S494/00; Y10S494/90

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 384 words
A method for the continuous multiplied enrichment of gaseous isotopes of heavy elements by means of gravity- and expanding pressure fields and gas circulation, said method to be carried out in a pipe having an end wall with a smooth inner surface and having an inlet and first and second discharge means, at least one nozzle being arranged adjacent said inlet and extending in a plane perpendicular to the longitudinal axis of the pipe so as to discharge tangentially relative to the inside pipe circumference, said first discharge means being formed by an annular slot situated at the inner circumference of the pipe defined by an annular member and the inner circumference of the pipe, said second discharge means being spaced from said first discharge means and being in the form of an annular aperture in said end wall adjacent the pipe axis and in the proximity of said inlet and said nozzles, said method comprising: rotating said pipe about the longitudinal axis of the pipe in the manner of a centrifuge, and forcing a gaseous isotope mixture to be separted under pressure through said nozzle in the direction of rotation of and into said pipe, a rotary flow of said gaseous mixture thereby building up within said pipe which is propelled by subsequently incoming amounts of gas mixture and which flow extends to said first discharge means, said rotary flow generating a suction force within said pipe adjacent said inlet, said gas mixture, due to said rotary flow, being divided into a first portion enriched with heavy istopes due to the occurring centrifugal forces, and a second portion containing lighter isotopes, said first portion enriched with heavy isotopes at least partially exiting through said first discharge means, while said second portion flows in opposite direction towards said second discharge means said second lighter isotope portion being at least partially sucked in by said suction force and thus caused repeatedly to circulate, thereby increasing the enrichment effect, said second lighter isotope portion primarily exiting through said annular aperture in said end wall of said second discharge means, the discharge flow speed of the gas being increased by the rotational speed of the pipe so that all enrichment effects, which increase by a factor corresponding to the fourth power of the rotational speed, are multiplied.
Claim 2
Independent Claim 384 words
A method for the continuous multiplied enrichment of gaseous isotopes of heavy elements by means of gravity- and expanding pressure fields and gas circulation, said method to be carried out in a pipe having an end wall with a smooth inner surface and having an inlet and first and second discharge means, at least one nozzle being arranged adjacent said inlet and extending in a plane perpendicular to the longitudinal axis of the pipe so as to discharge tangentially relative to the inside pipe circumference, said first discharge means being formed by an annular slot situated at the inner circumference of the pipe defined by an annular member and the inner circumference of the pipe, said second discharge means being spaced from said first discharge means and being in the form of an annular aperture in said end wall adjacent the pipe axis and in the proximity of said inlet and said nozzles, said method comprising: rotating said pipe about the longitudinal axis of the pipe in the manner of a centrifuge, and forcing a gaseous isotope mixture to be separted under pressure through said nozzle in the direction of rotation of and into said pipe, a rotary flow of said gaseous mixture thereby building up within said pipe which is propelled by subsequently incoming amounts of gas mixture and which flow extends to said first discharge means, said rotary flow generating a suction force within said pipe adjacent said inlet, said gas mixture, due to said rotary flow, being divided into a first portion enriched with heavy istopes due to the occurring centrifugal forces, and a second portion containing lighter isotopes, said first portion enriched with heavy isotopes at least partially exiting through said first discharge means, while said second portion flows in opposite direction towards said second discharge means said second lighter isotope portion being at least partially sucked in by said suction force and thus caused repeatedly to circulate, thereby increasing the enrichment effect, said second lighter isotope portion primarily exiting through said annular aperture in said end wall of said second discharge means, the discharge flow speed of the gas being increased by the rotational speed of the pipe so that all enrichment effects, which increase by a factor corresponding to the fourth power of the rotational speed, are multiplied.
Claim 3
Independent Claim 379 words
A method for the continuous multiplied enrichment of gaseous isotopes of heavy elements by means of gravity- and expanding pressure fields and gas circulation, said method being carried out in a pipe having an end wall with a smooth inner surface and having an inlet and first and second discharge means, at one nozzle being arranged adjacent said inlet and extending in a plane perpendicular to the longitudinal axis of the pipe so as to discharge tangentially relative to the inside pipe circumference, said first discharge means being formed by an annular slot situated in the region of the pipe axis with an annular baffle defining a flow passage thereabout, said second discharge means being spaced from said first discharge means and being in the form of an annular aperture in said end wall adjacent the pipe axis and in the proximity of said inlet and said nozzles, said method comprising: rotating said pipe about the longitudinal axis of the pipe in the manner of a centrifuge, and forcing a gaseous isotope mixture to be separated under pressure through said nozzle in the direction of rotation of and into said pipe, a rotary flow of said gaseous mixture therefore building up within said pipe which is propelled by subsequently incoming amounts of gas mixture and which flow extends to said first discharge means, said rotary flow generating a suction force within said pipe adjacent said inlet, said gas mixture, due to said rotary flow, being divided into a first portion enriched with heavy isotopes due to the occurring centrifugal forces, and a second portion containing lighter isotopes, said first portion enriched with heavy isotopes at least partially exiting through said first discharge means, while said second portion flows in opposite direction towards said second discharge means, said second lighter isotope portion being at least partially sucked in by said suction force and thus caused repeatedly to circulate, thereby increasing the enrichment effect, said second lighter isotope portion primarily exiting through said annular aperture in said end wall of said second discharge means, the discharge flow speed of the gas being increased by the rotational speed of the pipe so that all enrichment effects, which increase by a factor corresponding to the fourth power of the rotational speed, are multiplied.
Claim 4
Independent Claim 379 words
A method for the continuous multiplied enrichment of gaseous isotopes of heavy elements by means of gravity- and expanding pressure fields and gas circulation, said method being carried out in a pipe having an end wall with a smooth inner surface and having an inlet and first and second discharge means, at one nozzle being arranged adjacent said inlet and extending in a plane perpendicular to the longitudinal axis of the pipe so as to discharge tangentially relative to the inside pipe circumference, said first discharge means being formed by an annular slot situated in the region of the pipe axis with an annular baffle defining a flow passage thereabout, said second discharge means being spaced from said first discharge means and being in the form of an annular aperture in said end wall adjacent the pipe axis and in the proximity of said inlet and said nozzles, said method comprising: rotating said pipe about the longitudinal axis of the pipe in the manner of a centrifuge, and forcing a gaseous isotope mixture to be separated under pressure through said nozzle in the direction of rotation of and into said pipe, a rotary flow of said gaseous mixture therefore building up within said pipe which is propelled by subsequently incoming amounts of gas mixture and which flow extends to said first discharge means, said rotary flow generating a suction force within said pipe adjacent said inlet, said gas mixture, due to said rotary flow, being divided into a first portion enriched with heavy isotopes due to the occurring centrifugal forces, and a second portion containing lighter isotopes, said first portion enriched with heavy isotopes at least partially exiting through said first discharge means, while said second portion flows in opposite direction towards said second discharge means, said second lighter isotope portion being at least partially sucked in by said suction force and thus caused repeatedly to circulate, thereby increasing the enrichment effect, said second lighter isotope portion primarily exiting through said annular aperture in said end wall of said second discharge means, the discharge flow speed of the gas being increased by the rotational speed of the pipe so that all enrichment effects, which increase by a factor corresponding to the fourth power of the rotational speed, are multiplied.
Claim 5
Independent Claim 368 words
A method for the continuous multiplied enrichment of gaseous isotopes of heavy elements by means of gravity- and expanding pressure fields and gas circulation, said method being carried out in a pipe having an end wall with a smooth inner surface and having an inlet and first and second discharge means, at least one nozzle being arranged adjacent said inlet and extending in a plane perpendicular to the longitudinal axis of the pipe so as to discharge tangentially relative to the inside pipe circumference, said first discharge means being in the form of openings tangentially from the inner pipe circumference, said second means being spaced from said first discharge means and being in the form of an annular aperture in said end wall adjacent the pipe axis and in the proximity of said inlet and said nozzle, said method comprising: rotating said pipe about the longitudinal axis of the pipe in the manner of a centrifuge, and forcing a gaseous isotope mixture to be separated under pressure through said nozzle in the direction of rotation of and into said pipe, a rotary flow of said gaseous mixture therefore building up within said pipe which is propelled by subsequently incoming amounts of gas mixture and which flow extends to said first discharge means, said rotary flow generating a suction force within said pipe adjacent said inlet, said gas mixture, due to said rotary flow, being divided into a first portion enriched with heavy isotopes due to the occurring centrifugal forces, and a second portion containing lighter isotopes, said first portion enriched with heavy isotopes at least partially exiting through said first discharge means, while said second portion flows in opposite direction towards said second discharge means said second lighter isotope portion being at least partially sucked in by said suction force and thus caused repeatedly to circulate, thereby increasing the enrichment effect, said second lighter isotope portion primarily exiting through said annular aperture in said end wall of said second discharge means, the discharge flow speed of the gas being increased by the rotational speed of the pipe so that all enrichment effects, which increase by a factor corresponding to the fourth power of the rotational speed, are multiplied.
Claim 6
Independent Claim 368 words
A method for the continuous multiplied enrichment of gaseous isotopes of heavy elements by means of gravity- and expanding pressure fields and gas circulation, said method being carried out in a pipe having an end wall with a smooth inner surface and having an inlet and first and second discharge means, at least one nozzle being arranged adjacent said inlet and extending in a plane perpendicular to the longitudinal axis of the pipe so as to discharge tangentially relative to the inside pipe circumference, said first discharge means being in the form of openings tangentially from the inner pipe circumference, said second means being spaced from said first discharge means and being in the form of an annular aperture in said end wall adjacent the pipe axis and in the proximity of said inlet and said nozzle, said method comprising: rotating said pipe about the longitudinal axis of the pipe in the manner of a centrifuge, and forcing a gaseous isotope mixture to be separated under pressure through said nozzle in the direction of rotation of and into said pipe, a rotary flow of said gaseous mixture therefore building up within said pipe which is propelled by subsequently incoming amounts of gas mixture and which flow extends to said first discharge means, said rotary flow generating a suction force within said pipe adjacent said inlet, said gas mixture, due to said rotary flow, being divided into a first portion enriched with heavy isotopes due to the occurring centrifugal forces, and a second portion containing lighter isotopes, said first portion enriched with heavy isotopes at least partially exiting through said first discharge means, while said second portion flows in opposite direction towards said second discharge means said second lighter isotope portion being at least partially sucked in by said suction force and thus caused repeatedly to circulate, thereby increasing the enrichment effect, said second lighter isotope portion primarily exiting through said annular aperture in said end wall of said second discharge means, the discharge flow speed of the gas being increased by the rotational speed of the pipe so that all enrichment effects, which increase by a factor corresponding to the fourth power of the rotational speed, are multiplied.
Claim 7
Independent Claim 162 words
A device for the continuous multipled enrichment of gaseous isotopes of heavy elements comprising a pipe having an end wall at one end and having an annular member at the other end, having a smooth inner surface and having an inlet and first and second discharge means, at least one nozzle being arranged adjacent said inlet and extending in a plane perpendicular to the longitudinal axis of the pipe so as to discharge tangentially relative to the internal pipe circumference, said first discharge means including an annular slot situated at the inner circumference of the pipe defined by the annular member and the inner circumference of the pipe, said second discharge means being spaced apart from said first discharge means and including an annular aperture in said end wall along the longitudinal axis of the pipe and in the proximity of said inlet and means for rotating said pipe about the longitudinal axis of the pipe in the manner of a centrifuge.
Claim 8
Independent Claim 162 words
A device for the continuous multipled enrichment of gaseous isotopes of heavy elements comprising a pipe having an end wall at one end and having an annular member at the other end, having a smooth inner surface and having an inlet and first and second discharge means, at least one nozzle being arranged adjacent said inlet and extending in a plane perpendicular to the longitudinal axis of the pipe so as to discharge tangentially relative to the internal pipe circumference, said first discharge means including an annular slot situated at the inner circumference of the pipe defined by the annular member and the inner circumference of the pipe, said second discharge means being spaced apart from said first discharge means and including an annular aperture in said end wall along the longitudinal axis of the pipe and in the proximity of said inlet and means for rotating said pipe about the longitudinal axis of the pipe in the manner of a centrifuge.
Claim 9
Dependent Claim 50 words
The device of claim 4 including an even number of nozzles being arranged at a corresponding number of inlets, each of said nozzles being arranged adjacent said inlet and extending in a plane perpendicular to the longitudinal axis of the pipe to discharge tangentially relative to the internal pipe circumference.
Claim 10
Dependent Claim 25 words
The device of claim 4 including means for adjusting said annular member of said first discharge means to control the opening of said annular slot.
Claim 11
Independent Claim 163 words
A device for the continuous multiplied enrichment of gaseous isotopes of heavy elements comprising a pipe having first and second end walls and a smooth inner surface and having an inlet and first and second discharge means, at least one nozzle being arranged adjacent said inlet and extending in a plane perpendicular to the longitudinal axis of the pipe so as to discharge tangentially relative to the internal pipe circumference, said first discharge means including an annular opening in said first end wall in the region of the longitudinal axis of the pipe, an annular member for defining an annular discharge path with respect to said annular opening, said second discharge means being spaced apart from said first discharge means and including an annular aperture in said second end wall along the longitudinal axis of the pipe and in the proximity of said inlet and means for rotating said pipe about the longitudinal axis of the pipe in the manner of a centrifuge.
Claim 12
Independent Claim 163 words
A device for the continuous multiplied enrichment of gaseous isotopes of heavy elements comprising a pipe having first and second end walls and a smooth inner surface and having an inlet and first and second discharge means, at least one nozzle being arranged adjacent said inlet and extending in a plane perpendicular to the longitudinal axis of the pipe so as to discharge tangentially relative to the internal pipe circumference, said first discharge means including an annular opening in said first end wall in the region of the longitudinal axis of the pipe, an annular member for defining an annular discharge path with respect to said annular opening, said second discharge means being spaced apart from said first discharge means and including an annular aperture in said second end wall along the longitudinal axis of the pipe and in the proximity of said inlet and means for rotating said pipe about the longitudinal axis of the pipe in the manner of a centrifuge.
Claim 13
Dependent Claim 32 words
The device of claim 7 including means for adjusting the annular member with respect to the annular opening of said first discharge means to control the discharge of gas through said opening.
Claim 14
Independent Claim 145 words
A device for the continuous multiplied enrichement of gaseous isotopes of heavy elements comprising a pipe having first and second end walls and a smooth inner surface and having an inlet and first and second discharge means, at least one nozzle being arranged adjacent said inlet and extending in a plane perpendicular to the longitudinal axis of the pipe so as to discharge tangentially relative to the internal pipe circumference, said first discharge means adjacent said first end wall and including openings extending tangential to the inner pipe circumference, said second discharge means being spaced apart from said first discharge means and being in the form of an annular aperture in said second end wall adjacent the pipe axis and in the proximity of said inlet and means for rotating said pipe about the longitudinal axis of the pipe in the manner of a centrifuge.
Claim 15
Independent Claim 145 words
A device for the continuous multiplied enrichement of gaseous isotopes of heavy elements comprising a pipe having first and second end walls and a smooth inner surface and having an inlet and first and second discharge means, at least one nozzle being arranged adjacent said inlet and extending in a plane perpendicular to the longitudinal axis of the pipe so as to discharge tangentially relative to the internal pipe circumference, said first discharge means adjacent said first end wall and including openings extending tangential to the inner pipe circumference, said second discharge means being spaced apart from said first discharge means and being in the form of an annular aperture in said second end wall adjacent the pipe axis and in the proximity of said inlet and means for rotating said pipe about the longitudinal axis of the pipe in the manner of a centrifuge.

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) 1979-11-09 1980-05-10 1980-11-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-11-09 1984-05-10 1984-11-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-11-09 1988-05-10 1988-11-09 $7700.00 Window Closed / Lapsed

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