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WO2004031052A1 - Reservoirs cryogeniques thermoplastiques portatifs - Google Patents

Reservoirs cryogeniques thermoplastiques portatifs Download PDF

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Publication number
WO2004031052A1
WO2004031052A1 PCT/US2003/030775 US0330775W WO2004031052A1 WO 2004031052 A1 WO2004031052 A1 WO 2004031052A1 US 0330775 W US0330775 W US 0330775W WO 2004031052 A1 WO2004031052 A1 WO 2004031052A1
Authority
WO
WIPO (PCT)
Prior art keywords
inner container
thermoplastic
cylindrical wall
cryogenic vessel
fabricated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2003/030775
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English (en)
Inventor
Robert L. Zeunik
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Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AU2003273372A priority Critical patent/AU2003273372A1/en
Publication of WO2004031052A1 publication Critical patent/WO2004031052A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
    • B65D81/3837—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation rigid container in the form of a bottle, jar or like container
    • B65D81/3841—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation rigid container in the form of a bottle, jar or like container formed with double walls, i.e. hollow

Definitions

  • the invention relates to portable cryogenic vessels. More specifically, the invention relates to a portable cryogenic vessel employing an inner container and an outer container with an annular space situated between the inner container and the outer container.
  • Prior art portable cryogenic vessels for storing and handling cryogenic liquids (e.g., liquid nitrogen) at extremely cold temperatures have been in use for over fifty years.
  • Prior art portable cryogenic vessels are typically constructed with a double-wall construction employing an inner container and an outer container.
  • the inner container holds the cryogenic liquid, and to minimize any heat transfer between the ambient surroundings of the outer container and the cryogenic liquid stored within the inner container, the inner container is thermally isolated and insulated from the outer container by an annular space between the two containers.
  • the inner containers and the outer containers of portable cryogenic vessels have been fabricated from aluminum, and a necktube, if employed in an inner container, has been fabricated from fiberglass.
  • the present invention employs the traditional double-wall construction of an inner container disposed within an interior of an outer container to form an annular space between an exterior surface of the inner container and an interior surface of the outer container.
  • the inventor of the present invention has discovered through engineering and testing that a fabrication of the inner container and/or the outer container, partially or entirely, from one or more thermoplastics (e.g., polycarbonate) provides many benefits over the traditional fabrication of the inner container and the outer container from aluminum, and a necktube, if applicable, from fiberglass as will become apparent from the following detailed description of the several exemplary embodiments of the present invention, read in conjunction with the accompanying drawings.
  • the detailed description and drawings are merely illustrative of the present invention rather than limiting, the scope of the present invention being defined by the appended claims and equivalents thereof.
  • FIG. 1 illustrates a first embodiment of a cryogenic vessel in accordance with the present invention
  • FIG. 2 illustrates an exemplary embodiment of an inner container in accordance with the cryogenic vessel illustrated in FIG. 1 ;
  • FIG. 3 illustrates an exemplary embodiment of an outer container in accordance with the cryogenic vessel illustrated in FIG. 1 ;
  • FIG. 4 illustrates a first exemplary cryogenic vessel in accordance with the present invention employing the inner container illustrated in FIG. 2 and the'outer container illustrated in FIG. 3;
  • FIGS. 5-8 illustrate various exemplary embodiments of upper necktube joints in accordance with the present invention that are suitable for assembling the inner container illustrated in FIG. 2 and the outer container illustrated in FIG. 3;
  • FIG. 9 illustrates a cross-sectional view of an exemplary embodiment of a H-socket joint employed as a circumferential seam joint by the outer container illustrated in FIGS. 3 and 4;
  • FIG. 10 illustrates a cross-sectional view of an exemplary embodiment of an evacuation port employed by the outer container illustrated in FIG. 3;
  • FIG. 11 illustrates a second exemplary embodiment in accordance with the present invention of the cryogenic vessel illustrated in FIG. 1 ;
  • FIG. 12 illustrates a third exemplary embodiment in accordance with the present invention of the cryogenic vessel illustrated in FIG. 1.
  • the drawings illustrated in FIGS. 1-12 are not drawn to scale, but to facilitate an understanding of the various principles of the present invention.
  • Those having ordinary skill in the art will appreciate that, in practice, the actual shapes and dimensions of the inner container, the outer container, and any additional components of a portable cryogenic vessel in accordance with the present invention are dependent upon an intended commercial application of the portable cryogenic vessel.
  • the inventor of the present invention does not impose any restrictions as to the shapes and dimensions of each component of a portable cryogenic vessel in accordance with the present invention, and does not assert any "best" shape or any "best” dimensions of each component of a portable cryogenic vessel in accordance with the present invention.
  • FIG. 1 illustrates a generic portable cryogenic vessel 20 of the present invention employing a double-wall construction of an inner container 21 and an outer container 22 that creates an annular space to minimize a heat transfer between ambient surroundings of outer container 22 and any cryogenic liquid stored within inner container 21.
  • inner container 21 is disposed within an interior of outer container 22 to form the annular space situated between an exterior surface of inner container 22 and an interior surface of outer container 22.
  • Inner container 21 is constructed as a one-piece container, or a multi- piece container that is fabricated, partially or entirely, from one or more thermoplastics.
  • inner container 21 is fabricated entirely from a polycarbonate-based thermoplastic, which for purposes of the present invention is defined as a thermoplastic consisting, partially or entirely, of polycarbonate and substantially exhibiting a low heat transfer coefficeint and other physical properties of polycarbonate to allow inner container 21 to survive intact in cryogenic liquids.
  • Outer container 22 may also be constructed as a one-piece container or a multi-piece container that is fabricated, partially or entirely, from one or more thermoplastics.
  • inner container 21 and outer container 22 are fabricated entirely from a polycarbonate-based thermoplastic that incorporates a colorant to eliminate a need for painting inner container 21 and outer container 22.
  • Any conventional thermoplastic construction process may be implemented in constructing inner container 21 and outer container 22 as a one-piece container or a multi-piece container, such as, for example, blow- molding, thermoforming, injection molding, machining and many others as would be appreciated by those having ordinary skill in the art.
  • Inner container 21 and outer container 22 are illustrated in FIG. 1 as opened containers.
  • a design of inner container 21 and outer container 22 as opened containers or closed containers will be dependent upon an intended commercial application of cryogenic vessel 20.
  • the inventor of the present invention does not impose any restrictions on the design of containers 21 and 22 as opened containers or closed containers.
  • Portable cryogenic vessel 20 serves as a baseline for which an unlimited number of versions of a portable cryogenic vessel can be constructed under the principles of the present invention. Furthermore, those having ordinary skill in the art will appreciate additional components that can be incorporated with a portable cryogenic vessel constructed under the principles to the present invention, such as, for example, clamp on handles and other handling techniques as well known in the art.
  • FIGS. 2-12 provides three (2) exemplary versions of a portable cryogenic vessel constructed under the principles of the invention.
  • FIG. 2 illustrates an inner container 30 as one embodiment of inner container 21 (FIG. 1).
  • Inner container 30 preferably has a one-piece construction of a cylindrical wall 31 , reinforcement ribs 32 encircling an exterior surface of wall 31 , a cylindrical necktube 33 upwardly extending from an upper portion of wall 31 , a thread 34 encircling an upper portion of an exterior surface of necktube 33, reinforcement ribs 35 vertically extending around a lower portion of the exterior surface of necktube 33, a base 36 enclosing a lower portion of wall 31 , and a canister locator 37 upwardly extending from an interior surface of base 36.
  • this one-piece construction of inner container 30 is fabricated entirely from one or more thermoplastics (e.g., a polycarbonate-based thermoplastic) to establish a conduction heat path of inner container 30 extending from a top of necktube 33 along wall 31 to a bottom of base 36 whereby the conduction heat path of inner container 30 has a higher thermal conductive efficiency than a conduction heat path of a conventional inner container having a wall fabricated from a metal (e.g., aluminum) and a necktube fabricated from fiberglass.
  • the one-piece construction eliminates a need for an incorporation of a circumferential joint for coupling wall 31 and necktube 33.
  • FIG. 3 illustrates a multi-piece outer container 40 as one embodiment of outer container 22 (FIG. 1).
  • An upper shell piece of outer container 40 preferably has a one-piece construction of a cylindrical wall 41 , reinforcement ribs 42 encircling an exterior surface of wall 41 , a cylindrical neck section 43 upwardly extending from an upper portion of wall 41 , and an evacuation port 44 formed in neck section 43.
  • a lower shell piece of outer container 40 preferably has a one-piece construction of a cylindrical wall 45, reinforcement ribs 46 encircling an exterior surface of wall 45, and a base 47 enclosing a bottom portion of wall 45.
  • FIG. 4 illustrates a portable cryogenic vessel 50 employing inner container 30 (FIG. 2) and outer container 40 (FIG. 3).
  • An assembly of portable cryogenic vessel 50 can involve many stages, such as, for example, a container construction stage, a gas permeability impedance stage, an insulation wrapping stage, a flash coating stage, a vessel construction stage, and an air/gas evacuation stage.
  • the container construction stage involves a construction of inner container 30 and outer container 40 as previously described herein in connection with FIGS. 2 and 3, respectively.
  • a blow-molding process is implemented to facilitate a one- piece construction of inner container 30 that is fabricated entirely from one or more thermoplastics (e.g., a polycarbonate-based thermoplastic), and a thermoforming process is implemented to facilitate one-piece constructions of the upper shell piece and the lower shell piece of the outer container 40 that are fabricate entirely from one or more thermoplastics (e.g., a polycarbonate- based thermoplastic).
  • thermoplastics e.g., a polycarbonate-based thermoplastic
  • One design consideration of this stage is a relative dimensioning of inner container 30 and outer container 40 to facilitate a creation of an annular space situated between an exterior surface of inner container 30 and an interior surface of outer container 40.
  • the gas permeability impedance stage if necessary, involves a coating with an apoxy diluted with a solvent (e.g., acetone) coated on the exterior surface of inner container 30 to impede the flow of gas through the inner container 30.
  • the insulation wrapping stage if necessary, involves a conventional wrapping of a super insulation (e.g., aluminum foil and glass paper) consisting of alternative layers around the exterior surface of inner container 30 to minimize heat transfer by radiation between ambient surroundings of outer container 40 and any cryogenic liquid stored within inner container 30.
  • a super insulation e.g., aluminum foil and glass paper
  • the flash coating stage involves a flash coating of the exterior surface of inner container 30 with a highly reflective plastic coating having a metallic color (e.g., gold, silver and chromium) to minimize any heat transfer by radiation between ambient surroundings of outer container 40 and any cryogenic liquid stored within inner container 30.
  • a metallic color e.g., gold, silver and chromium
  • insulation wrapping stage and the flash coating stage are typically alternative techniques for minimizing any heat transfer by radiation between ambient surroundings of outer container 40 and any cryogenic liquid stored within inner container 30.
  • the vessel construction stage initially involves a coupling of necktube 33 of inner container 30 and neck section 43 of outer container 40.
  • a necktube joint 60 is utilized to implement a threaded coupling of necktube 33 and a socket joint coupling of neck section 43 as illustrated in FIG. 5.
  • FIGS. 6 and 7 illustrates alternative necktube joints 61 and 62, respectively, that can be used to implement a threaded coupling of necktube 33 and a socket joint coupling of neck section 43.
  • threads 34 may be replaced by ribs whereby a crimped coupling as known in the art is implemented.
  • threads 34 may be removed to form a necktube 33' whereby a socket joint coupling of necktube 33' is implemented as illustrated in FIG. 8 via a necktube joint 63.
  • the vessel construction stage thereafter involves a socket coupling of the upper shell and the lower shell of outer container 40 via H-socket joint 70.
  • FIG. 9 illustrates an exemplary socket joint coupling of the upper shell and the lower shell of outer container 40 via H-socket joint 70.
  • the air/gas evacuation stage involves a conventional creation of a hard vacuum within the annular space via evacuation port 44, an example of which is best shown in FIG. 10.
  • FIG. 11 illustrates a cryogenic vessel 80 as another exemplary embodiment of cryogenic vessel 20 (FIG. 1).
  • Cryogenic vessel 80 employs an inner container 90 and outer container 100.
  • Inner container 90 preferably has a multi-piece construction of a cylindrical wall 91 with a socket joint coupling of an upper portion of wall 91 within an annular slot of base 92 and a socket joint coupling of a lower portion of wall 91 within an inner annular slot of open lid 93.
  • inner container 90 can have a one-piece construction of cylindrical wall 91 , lid 92 and base 93.
  • wall 91 , lid 92 and base 93 are entirely fabricated from one or more thermoplastics (e.g., a polycarbonate-based thermoplastic) to establish a long conduction heat path of inner container 90 extending from a top of open lid 93 along wall 91 to a bottom of base 92 whereby the conduction heat path of inner container 90 has a higher thermal conductive efficiency than a conduction heat path of a conventional inner container fabricated from a metal (e.g., aluminum).
  • a metal e.g., aluminum
  • Outer container 100 preferably has a multi-piece construction of a cylindrical wall 101 with a socket joint coupling of a lower portion of wall 101 with an annular slot of an evacuation base 102, which has an evacuation port 103.
  • outer container 100 can have a one-piece construction of cylindrical wall 101 and evacuation base 102.
  • wall 101 and evacuation base 102 are entirely fabricated from one or more thermoplastics (e.g., a polycarbonate-based thermoplastic).
  • An assembly of portable cryogenic vessel 80 can involve many stages, such as, for example, the gas permeability impedance stage, the insulation wrapping stage, the flash coating stage, and the air/gas evacuation stage as previously described herein as well as a container construction stage and a vessel construction stage as subsequently described herein.
  • the container construction stage of vessel 80 involves a multi-piece construction or a one-piece construction of inner container 90 and outer container 100 as previously described herein.
  • a thermoforming process an injection molding or a machining of parts can be implemented to facilitate a fabrication of the multi-piece constructions entirely from one or more thermoplastics (e.g., a polycarbonate-based thermoplastic).
  • a blow-molding process is preferably implemented to facilitate a fabrication of the one-piece constructions entirely from one or more thermoplastics (e.g., a polycarbonate- based thermoplastic).
  • the vessel construction stage of vessel 80 involves a socket joint coupling of an upper portion of wall 101 within an outer annular slot of open lid 93.
  • cryogenic liquid can be poured into an interior of inner container 90, and/or one or more cryogenic canisters containing specimen for cryogenic storage can be conventionally disposed within the interior of inner container 90.
  • FIG. 12 illustrates a cryogenic vessel 110 as another exemplary embodiment of cryogenic vessel 20 (FIG. 1).
  • Cryogenic vessel 110 employs an inner container 120 and outer container 130.
  • Inner container 120 preferably has a multi-piece construction of a cylindrical wall 121 with a socket joint coupling of lower portion of wall 121 within an annular slot of base 122.
  • inner container 120 can have a one-piece construction of cylindrical wall 121 and base 122.
  • wall 121 and base 122 are entirely fabricated from one or more thermoplastics (e.g., a polycarbonate-based thermoplastic) to establish a conduction heat path of inner container 120 extending from a top of 121 to a bottom of base 122 whereby the conduction heat path of inner container 120 has a higher thermal conductive efficiency than a conduction heat path of a conventional inner container fabricated from a metal (e.g., aluminum).
  • An upper shell piece of outer container 130 preferably has a multi- piece construction of cylindrical wall 131 with a socket joint coupling of an upper portion of wall 131 within an outer annular slot of an open lid 132.
  • a lower shell piece of outer container 130 preferably has a multi-piece construction of cylindrical wall 133 with a socket joint coupling of a lower portion of wall 133 within an annular slot of an evacuation base 134, which has an evacuation port 135.
  • the upper shell piece of outer container 130 can have a one-piece construction of wall 131 and open lid 132
  • the lower shell piece of outer container 130 can have a one-piece construction of wall 133 and evacuation base 134.
  • the upper shell piece and the lower shell piece of outer container 130 are entirely fabricated from one or more thermoplastics (e.g., a polycarbonate-based thermoplastic).
  • An assembly of portable cryogenic vessel 110 can involve many stages, such as, for example, the gas permeability impedance stage, the insulation wrapping stage, the flash coating stage, and the air/gas evacuation stage as previously described herein as well as a container construction stage and a vessel construction stage as subsequently described herein.
  • the container construction stage of vessel 110 involves a multi-piece construction or a one-piece construction of inner container 120 and outer container 130 as previously described herein.
  • a thermoforming process an injection molding or a machining of part can be implemented to facilitate a fabrication of the multi-piece constructions entirely from one or more thermoplastics (e.g., a polycarbonate-based thermoplastic).
  • a blow-molding process is preferably implemented to facilitate a fabrication of the one-piece constructions entirely from one or more thermoplastics (e.g., a polycarbonate- based thermoplastic).
  • the vessel construction stage of vessel 110 involves a socket joint coupling of an upper portion of wall 120 within an inner annular slot of open lid 132.
  • cryogenic liquid can be poured into an interior of inner container 120, and/or one or more cryogenic canisters containing specimen for cryogenic storage can be conventionally disposed within the interior of inner container 120.
  • FIGS. 1-12 From the description herein of FIGS. 1-12, one skilled in the art will appreciate the many benefits of a cryogenic vessel constructed and fabricated in accordance with the present invention.
  • the present invention may be embodied in other specific forms without departing from its essential characteristics.
  • the described embodiments are to be considered in all respects only as illustrative and not restrictive.
  • the scope of the invention is, therefore, indicated by the appended claims rather than by the foregoing description. All changes that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

L'invention concerne un réservoir cryogénique (20) comprenant une construction à paroi double d'un conteneur interne (21) et d'un conteneur externe (22), le conteneur interne (21) étant placé à l'intérieur du conteneur externe (22) en vue de former un espace annulaire entre une surface externe du conteneur interne (21) et une surface interne du conteneur externe (22). Le conteneur interne (21) et/ou le conteneur externe (22) sont fabriqués, entièrement ou partiellement, à partir d'un ou plusieurs thermoplastiques.
PCT/US2003/030775 2002-09-30 2003-09-29 Reservoirs cryogeniques thermoplastiques portatifs Ceased WO2004031052A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003273372A AU2003273372A1 (en) 2002-09-30 2003-09-29 Portable thermoplastic cryogenic vessels

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US41447202P 2002-09-30 2002-09-30
US60/414,472 2002-09-30
US41981402P 2002-10-21 2002-10-21
US60/419,814 2002-10-21

Publications (1)

Publication Number Publication Date
WO2004031052A1 true WO2004031052A1 (fr) 2004-04-15

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PCT/US2003/030775 Ceased WO2004031052A1 (fr) 2002-09-30 2003-09-29 Reservoirs cryogeniques thermoplastiques portatifs

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WO (1) WO2004031052A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006005197A1 (fr) * 2004-07-08 2006-01-19 Daniel Schweri Contenant de securite
FR2900135A1 (fr) * 2006-04-24 2007-10-26 Philippe Assouly DISPOSITIF FAIT D'UN POT ISOTHERME ET DE RECIPIENTS A USAGE UNIQUE DESTINES A RECEVOIR l'AZOTE LIQUIDE POUR SES USAGES THERAPEUTIQUES MEDICAUX
WO2010000463A1 (fr) * 2008-07-04 2010-01-07 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Cryoréservoir

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4560075A (en) * 1984-06-08 1985-12-24 Lu Fu San Vacuum flask construction
US4675508A (en) * 1984-06-29 1987-06-23 Nippon Sanso Kabushiki Kaisha Electrically heated vacuum bottle
US6152319A (en) * 1996-11-22 2000-11-28 Nippon Sanso Corporation Thermally insulated synthetic resin container and thermally insulated synthetic resin lid

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4560075A (en) * 1984-06-08 1985-12-24 Lu Fu San Vacuum flask construction
US4675508A (en) * 1984-06-29 1987-06-23 Nippon Sanso Kabushiki Kaisha Electrically heated vacuum bottle
US6152319A (en) * 1996-11-22 2000-11-28 Nippon Sanso Corporation Thermally insulated synthetic resin container and thermally insulated synthetic resin lid

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006005197A1 (fr) * 2004-07-08 2006-01-19 Daniel Schweri Contenant de securite
FR2900135A1 (fr) * 2006-04-24 2007-10-26 Philippe Assouly DISPOSITIF FAIT D'UN POT ISOTHERME ET DE RECIPIENTS A USAGE UNIQUE DESTINES A RECEVOIR l'AZOTE LIQUIDE POUR SES USAGES THERAPEUTIQUES MEDICAUX
WO2010000463A1 (fr) * 2008-07-04 2010-01-07 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Cryoréservoir

Also Published As

Publication number Publication date
AU2003273372A1 (en) 2004-04-23

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