US3083952A - Capillary strand material - Google Patents

Capillary strand material Download PDF

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US3083952A
US3083952A US539251A US53925155A US3083952A US 3083952 A US3083952 A US 3083952A US 539251 A US539251 A US 539251A US 53925155 A US53925155 A US 53925155A US 3083952 A US3083952 A US 3083952A
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strand
capillary
liquid
along
length
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US539251A
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Alfred M Goodloe
Ralf L Hartwell
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Metal Textiles Corp
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Metal Textiles Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/32—Packing elements in the form of grids or built-up elements for forming a unit or module inside the apparatus for mass or heat transfer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B01D3/26—Fractionating columns in which vapour and liquid flow past each other, or in which the fluid is sprayed into the vapour, or in which a two-phase mixture is passed in one direction
    • B01D3/28—Fractionating columns with surface contact and vertical guides, e.g. film action
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12333—Helical or with helical component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12424—Mass of only fibers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12479—Porous [e.g., foamed, spongy, cracked, etc.]

Definitions

  • the invention contemplates provision of flexible capillary strand material of indeterminate or indefinite length formed from fine continuous filaments of metal or other non-absorptive substance; the filaments being so related in the strand formation produced therefrom as to provide spaces therebetween of such size that they will seal with the liquid being treated so as to support a capillary film of said liquid between said filaments and along the strand formation; such flexible capillary strand material being adapted to be wrought, in various ways, into cylindrical bodies of diametric size to bridge across the interior of a fractionating column or the like in stacked relation throughout the length thereof.
  • HS. 1 is an elevational view of a portion of an indeterminate or indefinite length of flexible capillary strand material formed from a plurality of continuous filaments bunched together in longitudinal parallel relation;
  • FIG. 2 is a similar view showing a flexible capillary strand formed from a plurality of contiguous longitudinally extending continuous filaments, said strand being helically twisted to hold the filaments in contiguous bunched together relation;
  • FIG. 3 is a similar view showing a flexible capillary strand formed from a plurality of continuous filaments bunched together in parallel longitudinal relation, about which is helically wound a giznping filament to hold the bunched filaments in contiguous relationship.
  • RIG. 4 is an elevational view of a portion of an indeterminate or indefinite length of flexible capillary strand material formed from a strip of knitted wire and then laterally compressed to a compacted strand formation.
  • FIG. 5 is an elevational view of a portion of an indeterminate or indefinite length of flexible capillary strand material formed from a strip of braided or woven wire and then laterally compressed to a compacted strand formation.
  • FIG. 6 is an elevational view of the flexible capillary strand formation which is provided with a succession of transverse crimps throughout its length.
  • the flexible capillary strand material in one form thereof comprises a plurality of fine continuous filaments j which are assembled together in contiguous, longitudinally extending, substantially parallel relation to form the strand body it
  • a very satisfactory flexible strand body is obtained by an assembly of twelve nickel-steel wire filaments of .0045 inch in diameter, although it will be understood a more or less number of wires or other filaments of suitable diameter can be utilized.
  • the filaments so associated provide slight spaces therebetween which will be readily sealed by liquid contacting the strand Patented Apr. 2, 1963 of helically twisted sections t along the length of the strand 10 (see FIG. 2), or may comprise the provision of a gimping member g which is helically wound around and along the strand body (see FIG. 3).
  • FIG. 4 Another form of the flexible capillary strand according to this invention (see FIG. 4) is produced by knitting a metallic wire or other non-absorptive continuous filamerit of the approximate'diameter of .0045 of an inch, into a tubular knit formation which is then flattened into a strip s, which strip is rolled transversely upon itself into a linear body I of substantially circular cross-section.
  • the linear body I thus provided is then drawn through a compacting die, whereby to compress the same into a relatively dense interstitial strand 11, the interstices of which are adapted to be readily sealed by liquid contacting the strand so as to support capillary films of liquid along the surface of the strand body.
  • a similar form of the flexible capillary strand (see FIG.
  • the flexible capillary strand material in the forms thereof last above described, can also be fabricated in various ways to provide a cylindrical contact unit adapted to be inserted within the interior of a fractionating column or the like.
  • These respective forms of the flexible capillary strand may be wound upon themselves into a convolved, substantially cylindrical contact unit. Before so winding the strand material upon itself, it is preferably crirnped to provide the same with successive small transverse serrations 0 extending along its length, said small serrations 0 being, for example, of a pitch approximating A; of an inch and of a depth approximating A of an inch.
  • the thus crimped strand is again crimped to provide a succession of relatively large transverse serrations c', for example, of a pitch approximating of an inch, and a depth approximating 7 of an inch.
  • the crimps therein function to space adjacent convolutions thereof one from another, thereby forming, through the interior of the contact unit, a multiplicity of intercommunicating open areas which provide tortuous paths through which vapor or gas can readily traverse the contact unit or body mass, and in so doing make contact with counterflowing liquid which travels along the capillary strand portions contiguous to said paths.
  • capillary strand material are flexible and can be provided in any suitable length, any thereof can be suitably manipulated or Wrought into a contact unit, the intercommunicating open areas or interstices of which are uniformly distributed, across and upwardly through the contact unit so as to form diversely interconnecting tortuous passages which assure good through put of vapor movement in contact with counterflowing liquid which runs along and through the capillary passages or spaces of the strand per se. Since the'vapor flows through the communicating interstices or open areas of the contact unit in tortuous and intersecting paths, repeated division and recombination of vapor streams occurs, thereby efiiciently promoting thorough mixing of the vapor.
  • the liquid similarly flows along the capillary strand material until it reaches points where two portions of the latter touch each other, at which points part of the liquid may leave one strand portion and transfer to the other strand portion, whereby the liquid streams are also repeatedly divided and recombined with other streams, thereby assuring thorough mixing of the liquid.
  • a flexible capillary strand of indefinite but great length adapted to be wrought into a contact unit for use in vapor and liquid contact apparatus, said strand comprising a mesh strip fabricated from fine continuous filamentary material rolled transversely upon itself into a linear body, and said linear body being laterally compressed to form a relatively dense contact material, the interstices of which are adapted to be readily sealed by liquid contacting said material, whereby to support capillary films along the surface of said material, said strand being crimped to provide the same with a succession of transverse serrations along the length thereof.
  • a flexible capillary strand of indefinite but great length adapted to be wrought into a contact unit for use in vapor and liquid contact apparatus, said strand comprising a mesh strip fabricated from fine continuous filamentary material rolled transversely upon itself into a linear body, and said linear body being laterally com pressed to form a relatively dense contact material, the interstices of which are adapted to be readily sealed by liquid contacting said material, whereby to support capillary films along the surface of said material, said strand being crimped to provide the same with a succession of transverse small serrations along the length thereof and having another succession of superposed transverse large serrations along the length thereof.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Organic Chemistry (AREA)
  • Absorbent Articles And Supports Therefor (AREA)

Description

April 2, 1963 A. M. GOODLOE ETAL 3,083,952
CAPILLARY STRAND MATERIAL Filed 001.. 7, 1955 United States Patent 3,S3,52 CAPILLARY STRAND MATERIAL Alfred M. Goodloe, Westlield, and Ralf L. Hartwell, tl'ranford, N1, assignors, by mesne assignments, to Metal Textiie Corporation, a corporation of Delaware Filed Oct. 7, 1955, Ser. No. 539,251 2 Claims. (Cl. Zeb-8%) This invention relates to contact devices for effecting contact between liquid and vapor or gas in fractionating columns, scrubbers and the like, and more particularly pertains to flexible capillary strand material from which said contact devices can be produced.
The invention contemplates provision of flexible capillary strand material of indeterminate or indefinite length formed from fine continuous filaments of metal or other non-absorptive substance; the filaments being so related in the strand formation produced therefrom as to provide spaces therebetween of such size that they will seal with the liquid being treated so as to support a capillary film of said liquid between said filaments and along the strand formation; such flexible capillary strand material being adapted to be wrought, in various ways, into cylindrical bodies of diametric size to bridge across the interior of a fractionating column or the like in stacked relation throughout the length thereof.
The filamentary constituents making up the flexible capillary strand material according to this invention can be associated in various ways to obtain the strand formation. This will be understood from the following description when considered in connection with the accompanying drawings, in which:
HS. 1 is an elevational view of a portion of an indeterminate or indefinite length of flexible capillary strand material formed from a plurality of continuous filaments bunched together in longitudinal parallel relation; FIG. 2 is a similar view showing a flexible capillary strand formed from a plurality of contiguous longitudinally extending continuous filaments, said strand being helically twisted to hold the filaments in contiguous bunched together relation; and FIG. 3 is a similar view showing a flexible capillary strand formed from a plurality of continuous filaments bunched together in parallel longitudinal relation, about which is helically wound a giznping filament to hold the bunched filaments in contiguous relationship.
RIG. 4 is an elevational view of a portion of an indeterminate or indefinite length of flexible capillary strand material formed from a strip of knitted wire and then laterally compressed to a compacted strand formation.
FIG. 5 is an elevational view of a portion of an indeterminate or indefinite length of flexible capillary strand material formed from a strip of braided or woven wire and then laterally compressed to a compacted strand formation.
FIG. 6 is an elevational view of the flexible capillary strand formation which is provided with a succession of transverse crimps throughout its length.
Referring to the drawings, the flexible capillary strand material in one form thereof (see FIG. 1) comprises a plurality of fine continuous filaments j which are assembled together in contiguous, longitudinally extending, substantially parallel relation to form the strand body it For example, a very satisfactory flexible strand body is obtained by an assembly of twelve nickel-steel wire filaments of .0045 inch in diameter, although it will be understood a more or less number of wires or other filaments of suitable diameter can be utilized. The filaments so associated provide slight spaces therebetween which will be readily sealed by liquid contacting the strand Patented Apr. 2, 1963 of helically twisted sections t along the length of the strand 10 (see FIG. 2), or may comprise the provision of a gimping member g which is helically wound around and along the strand body (see FIG. 3).
'Another form of the flexible capillary strand according to this invention (see FIG. 4) is produced by knitting a metallic wire or other non-absorptive continuous filamerit of the approximate'diameter of .0045 of an inch, into a tubular knit formation which is then flattened into a strip s, which strip is rolled transversely upon itself into a linear body I of substantially circular cross-section. The linear body I thus provided is then drawn through a compacting die, whereby to compress the same into a relatively dense interstitial strand 11, the interstices of which are adapted to be readily sealed by liquid contacting the strand so as to support capillary films of liquid along the surface of the strand body. A similar form of the flexible capillary strand (see FIG. 5) can be similarly produced from a strip s of braided or woven fine metallic wire or other non-absorptive continuous filament, said strip s being then rolled transversely upon itself into a linear body I, and said body I being thereupon likewise drawn through a compacting die to compress the same into a relatively dense interstitial strand body 11', the interstices of which will be readily sealed by liquid contacting the strand body so as to support capillary films of the liquid along the surface of the same.
The flexible capillary strand material, in the forms thereof last above described, can also be fabricated in various ways to provide a cylindrical contact unit adapted to be inserted within the interior of a fractionating column or the like. These respective forms of the flexible capillary strand may be wound upon themselves into a convolved, substantially cylindrical contact unit. Before so winding the strand material upon itself, it is preferably crirnped to provide the same with successive small transverse serrations 0 extending along its length, said small serrations 0 being, for example, of a pitch approximating A; of an inch and of a depth approximating A of an inch. Preferably, the thus crimped strand is again crimped to provide a succession of relatively large transverse serrations c', for example, of a pitch approximating of an inch, and a depth approximating 7 of an inch. When the thus crimped flexible capillary strand is wound upon itself into a convolved, substantially cylindrical, contact unit, the crimps therein function to space adjacent convolutions thereof one from another, thereby forming, through the interior of the contact unit, a multiplicity of intercommunicating open areas which provide tortuous paths through which vapor or gas can readily traverse the contact unit or body mass, and in so doing make contact with counterflowing liquid which travels along the capillary strand portions contiguous to said paths.
Since all of the above described forms of capillary strand material are flexible and can be provided in any suitable length, any thereof can be suitably manipulated or Wrought into a contact unit, the intercommunicating open areas or interstices of which are uniformly distributed, across and upwardly through the contact unit so as to form diversely interconnecting tortuous passages which assure good through put of vapor movement in contact with counterflowing liquid which runs along and through the capillary passages or spaces of the strand per se. Since the'vapor flows through the communicating interstices or open areas of the contact unit in tortuous and intersecting paths, repeated division and recombination of vapor streams occurs, thereby efiiciently promoting thorough mixing of the vapor. The liquid similarly flows along the capillary strand material until it reaches points where two portions of the latter touch each other, at which points part of the liquid may leave one strand portion and transfer to the other strand portion, whereby the liquid streams are also repeatedly divided and recombined with other streams, thereby assuring thorough mixing of the liquid.
Inasmuch as variations in the form of the flexible capillary strand material may be made without departing from the principles of this invention, it will be understood that the invention is not to be limited except by the scope of the herefollowing claims.
What is claimed is:
1. A flexible capillary strand of indefinite but great length adapted to be wrought into a contact unit for use in vapor and liquid contact apparatus, said strand comprising a mesh strip fabricated from fine continuous filamentary material rolled transversely upon itself into a linear body, and said linear body being laterally compressed to form a relatively dense contact material, the interstices of which are adapted to be readily sealed by liquid contacting said material, whereby to support capillary films along the surface of said material, said strand being crimped to provide the same with a succession of transverse serrations along the length thereof.
2. A flexible capillary strand of indefinite but great length adapted to be wrought into a contact unit for use in vapor and liquid contact apparatus, said strand comprising a mesh strip fabricated from fine continuous filamentary material rolled transversely upon itself into a linear body, and said linear body being laterally com pressed to form a relatively dense contact material, the interstices of which are adapted to be readily sealed by liquid contacting said material, whereby to support capillary films along the surface of said material, said strand being crimped to provide the same with a succession of transverse small serrations along the length thereof and having another succession of superposed transverse large serrations along the length thereof.
References Cited in the file of this patent UNITED STATES PATENTS 437,902 Herder Oct. 7, 1890 452,103 Harris May 12, 1891 459,462 Smith Sept. 15, 1891 1,692,627 Clark Nov. 20, 1928 1,976,491 Gottscholk Oct. 9, 1934 2,029,994 Fabel Feb. 4, 1936 2,226,792 Walters Dec. 31, 1940 2,376,039 Driscoll et a1. May 15, 1945 2,583,769 Gaugler Jan. 29, 1952 2,615,832 Dixon Oct. 28, 1952 2,702,460 Gaugler Feb. 22, 1955 FOREIGN PATENTS 912,201 Germany May 28, 1954 1,043,959 France June 17, 1953

Claims (1)

1. A FLEXIBLE CAPILLARY STRAND OF INDEFINITE BUT GREAT LENGTH ADAPTED TO BE WROUGHT INTO A CONTACT UNIT FOR USE IN VAPOR AND LIQUID CONTACT APPARATUS, SAID STRAND COMPRISING A MESH STRIP FABRICATED FROM FINE CONTINUOUS FILAMENTARY MATERIAL ROLLED TRANSVERSELY UPON ITSELF INTO A LINEAR BODY, AND SAID LINEAR BODY BEING LATERALLY COMPRESSED TO FORM A RELATIVELY DENSE CONTACT MATERIAL, THE INTERSTICES OF WHICH ARE ADAPTED TO BE READILY SEALED BY LIQUID CONTACTING SAID MATERIAL, WHEREBY TO SUPPORT CAPILLARY FILMS ALONG THE SURFACE OF SAID MATERIAL, SAID STRAND BEING CRIMPED TO PROVIDE THE SAME WITH A SUCCESSION OF TRANSVERSE SERRATIONS ALONG THE LENGTH THEREOF.
US539251A 1955-10-07 1955-10-07 Capillary strand material Expired - Lifetime US3083952A (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3215277A (en) * 1963-09-24 1965-11-02 Dorr Oliver Inc Continuous filters
US3864198A (en) * 1970-11-23 1975-02-04 Hercules Inc Interconnected network structures
EP0011176A1 (en) * 1978-11-09 1980-05-28 Bayer Ag Packing to be fitted in columns, apparatuses or tubes used in engineering
US4324749A (en) * 1977-06-14 1982-04-13 Akzona Incorporated Three-dimensional exchange element for liquid guidance in liquid-gas contact systems
US5050707A (en) * 1990-01-22 1991-09-24 Arne Wilhelmsen Automatic oiling device
US5384074A (en) * 1989-09-08 1995-01-24 Pedersen; John R. C. Carburetor metering system and wick
US5399073A (en) * 1994-01-28 1995-03-21 Bauer-Kompressoren Gmbh Compressor unit with condensate filter and oil disposal system
EP1323467A1 (en) * 2001-12-20 2003-07-02 Rolf P. C. Manteufel Device for material and/or energy exchange in a wash column
EP1444613A2 (en) * 2001-11-14 2004-08-11 Endeavors Technology Inc. Systems and methods for indexing data in a network environment
US20150176918A1 (en) * 2013-12-24 2015-06-25 Hao Pai Coaxial capillary structure and ultra-thin heat pipe structure having the same
US11079104B2 (en) * 2019-01-03 2021-08-03 Pro-lroda Industries, Inc. Flame-resistant wick
FR3113611A1 (en) * 2020-08-25 2022-03-04 Institut National Polytechnique De Toulouse WIRED LIQUID DISPENSER FOR PACKED COLUMN

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US437902A (en) * 1890-10-07 Rudolph h
US452103A (en) * 1891-05-12 Alfred ellis harris
US459462A (en) * 1891-09-15 Oiler
US1692627A (en) * 1928-11-20 Igniteb
US1976491A (en) * 1931-07-31 1934-10-09 John W Gottschalk Metallic rope
US2029994A (en) * 1933-02-03 1936-02-04 Southern Asbestos Company Wicking
US2226792A (en) * 1938-08-31 1940-12-31 Russell Mfg Co Wick
US2376039A (en) * 1943-04-09 1945-05-15 Johns Manville Packing
US2583769A (en) * 1946-11-26 1952-01-29 Gen Motors Corp Absorber for refrigerating apparatus
US2615832A (en) * 1943-06-16 1952-10-28 Ici Ltd Treatment of gases or vapors with liquids
FR1043959A (en) * 1951-06-05 1953-11-13 Wick
DE912201C (en) * 1951-06-05 1954-05-28 Carl H Hackl wick
US2702460A (en) * 1951-06-23 1955-02-22 Gen Motors Corp Refrigerant evaporating means

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US437902A (en) * 1890-10-07 Rudolph h
US452103A (en) * 1891-05-12 Alfred ellis harris
US459462A (en) * 1891-09-15 Oiler
US1692627A (en) * 1928-11-20 Igniteb
US1976491A (en) * 1931-07-31 1934-10-09 John W Gottschalk Metallic rope
US2029994A (en) * 1933-02-03 1936-02-04 Southern Asbestos Company Wicking
US2226792A (en) * 1938-08-31 1940-12-31 Russell Mfg Co Wick
US2376039A (en) * 1943-04-09 1945-05-15 Johns Manville Packing
US2615832A (en) * 1943-06-16 1952-10-28 Ici Ltd Treatment of gases or vapors with liquids
US2583769A (en) * 1946-11-26 1952-01-29 Gen Motors Corp Absorber for refrigerating apparatus
FR1043959A (en) * 1951-06-05 1953-11-13 Wick
DE912201C (en) * 1951-06-05 1954-05-28 Carl H Hackl wick
US2702460A (en) * 1951-06-23 1955-02-22 Gen Motors Corp Refrigerant evaporating means

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3215277A (en) * 1963-09-24 1965-11-02 Dorr Oliver Inc Continuous filters
US3864198A (en) * 1970-11-23 1975-02-04 Hercules Inc Interconnected network structures
US4324749A (en) * 1977-06-14 1982-04-13 Akzona Incorporated Three-dimensional exchange element for liquid guidance in liquid-gas contact systems
EP0011176A1 (en) * 1978-11-09 1980-05-28 Bayer Ag Packing to be fitted in columns, apparatuses or tubes used in engineering
US5384074A (en) * 1989-09-08 1995-01-24 Pedersen; John R. C. Carburetor metering system and wick
US5050707A (en) * 1990-01-22 1991-09-24 Arne Wilhelmsen Automatic oiling device
US5399073A (en) * 1994-01-28 1995-03-21 Bauer-Kompressoren Gmbh Compressor unit with condensate filter and oil disposal system
EP1444613A2 (en) * 2001-11-14 2004-08-11 Endeavors Technology Inc. Systems and methods for indexing data in a network environment
EP1323467A1 (en) * 2001-12-20 2003-07-02 Rolf P. C. Manteufel Device for material and/or energy exchange in a wash column
WO2003053563A1 (en) * 2001-12-20 2003-07-03 Manteufel Rolf P C Device for material and/or energy exchange in a wash column
US20050035473A1 (en) * 2001-12-20 2005-02-17 Manteufel Rolf P.C. Device for material and/or energy exchange in a wash column
US20150176918A1 (en) * 2013-12-24 2015-06-25 Hao Pai Coaxial capillary structure and ultra-thin heat pipe structure having the same
US11079104B2 (en) * 2019-01-03 2021-08-03 Pro-lroda Industries, Inc. Flame-resistant wick
US11680705B2 (en) 2019-01-03 2023-06-20 Pro-Iroda Industries, Inc. Flame-resistant wick
FR3113611A1 (en) * 2020-08-25 2022-03-04 Institut National Polytechnique De Toulouse WIRED LIQUID DISPENSER FOR PACKED COLUMN

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