US3261087A - Process for forming a seal for a container for storing a liquefied gas - Google Patents

Process for forming a seal for a container for storing a liquefied gas Download PDF

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Publication number
US3261087A
US3261087A US261888A US26188863A US3261087A US 3261087 A US3261087 A US 3261087A US 261888 A US261888 A US 261888A US 26188863 A US26188863 A US 26188863A US 3261087 A US3261087 A US 3261087A
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United States
Prior art keywords
blocks
slabs
seal
closed cell
container
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Expired - Lifetime
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US261888A
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English (en)
Inventor
Schlumberger Etienne Maurice
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Conch International Methane Ltd
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Conch International Methane Ltd
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66—Sealings
    • E04B1/68—Sealings of joints, e.g. expansion joints
    • E04B1/6801—Fillings therefor
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
    • E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
    • E01C11/10—Packing of plastic or elastic materials, e.g. wood, resin
    • E01C11/106—Joints with only prefabricated packing; Packings therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J12/00—Pressure vessels in general
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
    • F16J15/102—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/001—Thermal insulation specially adapted for cryogenic vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/03—Thermal insulations
    • F17C2203/0304—Thermal insulations by solid means
    • F17C2203/0329—Foam
    • F17C2203/0333—Polyurethane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S220/00—Receptacles
    • Y10S220/901—Liquified gas content, cryogenic
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49863—Assembling or joining with prestressing of part
    • Y10T29/4987—Elastic joining of parts

Definitions

  • the invention relates to a process for forming a fluidtight seal for use in a container for storing liquefied gases at low temperatures, especially for use in a container for storing liquefied natural gas, methane, nitrogen, oxygen, ethane, propane or air at about atmospheric pressure.
  • Containers for storing the above-mentioned liquefied gases usually comprise a rigid 'outer shell internally lined with heat-insulating material and an inner tank in the space enclosed by the heat-insulated outer shell.
  • the temperatures of the liquefied gases are very low indeed; the temperature of liquefied natural gas is, for example, as low as minus 161 degrees centigrade, consequently, the temperature of the inner tank will vary between ambient temperature when the inner tank is empty and about the temperature of the liquefied gas when the inner tank is loaded. This temperature variation will cause large expansions and contractions of the material of the inner tank and of the heat-insulating material adjacent to the inner tank.
  • the heat-insulating material lining the inner surfaces of the rigid outer shell consists normally of blocks of heat-insulating material (e.g. closed cell foamed materials) which are secured independently of each other to the rigid outer shell.
  • the rigid outer shell is normally made of a material which will lose its strength and ductility if cooled down to the low temperature of the liquefied gas, therefore measures must be taken to prevent the cold liquefied gas from ever reaching the rigid outer shell. It will be understood that it is desirable to construct the layer of heat-insulating material in such a way that liquefied gas or vapor cannot penetrate it so that, in the case of failure of the inner tank, the liqeufied gas will not be able to contact and to cool down the rigid outer shell.
  • foamed plastics are installed (e.g. in these voids) at ambient temperature and then cooled down to about the temperature of the liquefied gas, only a limited extension of the foamed plastic is possible at the low temperature, since the elastic properties of the foamed plastics decrease when they are cooled down substantially.
  • foamed plastic in particular polyvinyl chloride, is installed at ambient temperature in precompressed condition a significant extension of the foamed plastic is possible at low temperature before breakage will occur.
  • a process for forming a seal which is fluid-tight at low temperatures is one in which the zone to be sealed is substantially filled with a compressible closed cell porous material at ambient temperature and in the precompressed condition, the closed cell porous material being bonded firmly to the material bounding the zone.
  • FIG. 1 is a sectional view of a portion of a tank according to the invention, showing the novel construction
  • FIG. 2 is a sectional view showing the liner when the container is at ambient temperature
  • FIG. 3 shows the liner when the container is at low temperature
  • FIG. 4 indicates the initial thickness of the liner slab at ambient temperature
  • FIG. 5 is a flow chart of the method.
  • the container 1 comprises a rigid outer shell 3 made of a material which will lose its strength and ductility if cooled down to the low temperature of liquefied gas; this may typically be the inner steel hull of a ship.
  • a rigid outer shell 3 made of a material which will lose its strength and ductility if cooled down to the low temperature of liquefied gas; this may typically be the inner steel hull of a ship.
  • blocks 4 Suitably fixed to the outer shell 3 as by pins 6 are blocks 4 of rigid insulating material such as balsa wood, cork-board, and so forth, which may if desired be enclosed in plywood.
  • FIG. 4 shows the unstressed thickness of slab 7 as indicated by the letter w. As shown in FIG.
  • closed cell porous material is meant a material which is predominately closed-cell, it being difficult in practice to obtain a material which is completely closedcell.
  • Some types of P.V.C. foam are always predominately closed cell structure.
  • the compressible closed cell porous material itself should be fluid-tight.
  • the compressible closed cell porous material should preferably be a synthetic material such as plastic material.
  • foamed plastic it should preferably be a thermoplastic.
  • suitable closed cell foamed plastics are polystyrene, polyethylene and polypropylene or polyurethane foams or especially polyvinyl chloride. Preferably urea foams are not used.
  • closed-cell elastomers may be used as an alternative to thermoplastic foams.
  • the compressible closed cell porous material should preferably be semi-rigid, that is a material able to be compressed at least 5% without serious damage to the structure.
  • the semi-rigid material is one having at ambient temperature a compressive strength at 20% compression of between 5 and p.s.i. (0.35 and 5.6 kg./cm. If the closed cell porous material is too soft there is very little elongation at low temperatures,
  • the slab 7 is adhesively bonded by a suitable- 25 whereas if it is too hard, the cell structure tends to be broken when it is precompressed.
  • the density of the compressible closed cell porous material should preferably not be too high as it becomes difficult to compress. It should preferably be between 0.5 and 6.0 lb./cu. ft. (0.008 and 0.096 gm./cm. A density of between 2.0 lb./ cu. ft. and 3.0 lb./ cu. ft. (0.032 and 0.047 gm./cm. is usually suitable for polyvinyl chloride.
  • the compressible closed cell porous material In preparing the seal by the process of the invention, the compressible closed cell porous material must be precompressed, that is compressed by at least 5% before inserting it into the zone to be sealed. It should also be compressed without significant damage to the structure of the material, that is for foamed polyvinyl chloride compressed by up to about 25%, e.g. by between 5% and 20%.
  • the exact degrees of compression depends on the compressive strength of the material, the less rigid materials being susceptible to a greater degree of compression. In general, it has been found that the greater the degree of precompression, the greater the elongation at low temperatures.
  • the process of this invention is conveniently applied in forming fluid-tight seals between heat insulating blocks e.g. those used for lining tanks for housing very cold liquids.
  • the blocks which should be dimensionally stable may have structurally strong front, back and side walls such as of plywood enclosing a porous insulating core such as cores of balsa wood, cork-board, calcium silicate, or a honeycomb core, the honeycombs for example being filled with polyurethane foam or other heat insulating plastic.
  • the precompressed closed cell porous material e.g. foamed plastic
  • the precompressed closed cell porous material must be bonded to the blocks (or other material bounding the zone to be sealed) so that the gap between adjacent blocks is effectively sealed.
  • a suitable method of bonding is by gluing e.g. by using epoxy adhesives (e. g. Epikote 828/diethylene triamine (100/10 pt. wt.)), polyester adhesives, or resorcinol glues.
  • Some adhesives contain solvents, which may attack the compressible material, and accordingly care should be taken when selecting a suitable adhesive.
  • the blocks of heat-insulating material When a container provided with seals according to the invention is filled with cold liquefied gas, the blocks of heat-insulating material will contract and since the piece of for example, foamed plastic is bonded to the blocks, the piece of foamed plastic will come under tension and will be extended. Since the piece of foamed plastic has, however, been installed in the precompressed condition at ambient temperature, the piece of foamed plastic can be extended substantially at low temperature without danger of breakage. The result is that the seal between adjacent blocks of heat-insulating material remains fluid-tight when the container is cooled down to the temperature of the liquefied gas.
  • Example 1 The gap between adjacent blocks of balsa wood was sealed by inserting polyvinyl chloride foam precompressed by 20%, and stuck to balsa wood by using the combination of Epikote 828 and diethylene triamine in a weight ratio of 100:10. At low temperatures the seal remained fluid-tight and was able to undergo elongations of the order of 5% without fracturing.
  • a process for forming a fluid-tight thermal insulating liner for a liquid gas container which comprises (a) affixing to a backing support at ambient temperature a number of rigid blocks of thermal-insulating material, with a small gap between adjacent blocks,
  • a process for forming a seal which remains fluidtight at low temperatures in a zone bounded by units of material to be sealed together which comprises substantially filling the zone to be sealed with a compressible closed cell porous material at ambient temperature and in the precompressed condition the degree of compression being between 5 and 25 percent of the original thickness, and adhesively bonding the closed cell porous material firmly to the material bounding said zone.
  • foamed plastic is a material able to be compressed at least 5% without serious damage to the structure.
  • a process for forming a seal which is fluid-tight at low temperatures which comprises filling the gap between adjacent blocks of rigid heat insulating material with compressible closed cell foamed plastic at ambient temperature and in precompressed condition, and adhesively bonding the closed cell foamed plastic firmly to the blocks of heat insulating material.
  • a process as claimed in claim 12 in which the foamed plastic is foamed polyvinyl chloride.
  • a process for forming a seal which is fluid-tight at low temperatures which comprises substantially filling the zone to be sealed With a compressible closed cell foamed polyvinyl chloride at ambient temperature and in the precompressed condition, and bonding the foamed polyvinyl chloride firmly to the material bounding said zone.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Sealing Material Composition (AREA)
US261888A 1962-03-06 1963-02-28 Process for forming a seal for a container for storing a liquefied gas Expired - Lifetime US3261087A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8653/62A GB952564A (en) 1962-03-06 1962-03-06 A seal for use in a container for storing liquefied gases at low temperature

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US3261087A true US3261087A (en) 1966-07-19

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US (1) US3261087A (enrdf_load_stackoverflow)
BE (1) BE629198A (enrdf_load_stackoverflow)
DK (1) DK125765B (enrdf_load_stackoverflow)
ES (1) ES285737A1 (enrdf_load_stackoverflow)
GB (1) GB952564A (enrdf_load_stackoverflow)
NL (1) NL289753A (enrdf_load_stackoverflow)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3427776A (en) * 1966-06-14 1969-02-18 Tremco Mfg Co Self-adherent,shock absorbing,sealing and spacing strip
US3469510A (en) * 1966-01-24 1969-09-30 Edoco Technical Products Weakened plane joint former and seal
US3489311A (en) * 1967-05-25 1970-01-13 Aerojet General Co Tanks for storage of liquefied gas
US3495732A (en) * 1967-07-28 1970-02-17 Exxon Research Engineering Co Insulated cryogenic tank
US3655086A (en) * 1970-10-09 1972-04-11 Cryotan Inc Receptacles for the storage of liquefied gases at cryogenic temperatures
US3668880A (en) * 1970-10-16 1972-06-13 Martin Marietta Corp Capillary insulation
FR2124547A1 (enrdf_load_stackoverflow) * 1971-02-10 1972-09-22 Balsa Ecuador Lumber Cor
US3693367A (en) * 1970-04-24 1972-09-26 Leonard J Di Peri Thermodynamic control device
US3925041A (en) * 1973-12-28 1975-12-09 Union Carbide Corp Thermal swing gas adsorber
CN103727230A (zh) * 2012-10-10 2014-04-16 李华容 一种罐体焊缝密封的方法
CN105644712A (zh) * 2014-12-03 2016-06-08 江南造船(集团)有限责任公司 A型独立液货舱顶面中间防横摇支座绝缘的安装方法
CN105711738A (zh) * 2014-12-03 2016-06-29 江南造船(集团)有限责任公司 A型独立液货舱顶面两端防横摇支座绝缘的安装方法
US10378695B2 (en) * 2016-05-25 2019-08-13 Savsu Technologies Llc Cryogenic storage container
US11596148B2 (en) 2017-11-17 2023-03-07 Savsu Technologies, Inc. Dry vapor cryogenic container with absorbent core
US20240235308A1 (en) * 2021-05-12 2024-07-11 Vestas Wind Systems A/S Preformed coil for an electric machine having a perforated insulating body and method of making same

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1885391A (en) * 1931-04-02 1932-11-01 Goodrich Co B F Expansion joint
US2068035A (en) * 1935-06-03 1937-01-19 Goodrich Co B F Packing strip
US2179542A (en) * 1933-10-26 1939-11-14 Armstrong Cork Co Insulated structure and method of making the same
US2869336A (en) * 1955-08-15 1959-01-20 Gen Motors Corp Refrigerating apparatus
US2964424A (en) * 1955-06-15 1960-12-13 Mast Laban Bitumen-impregnated-foam packing material
AT213782B (de) * 1958-05-05 1961-02-27 Conch Int Methane Ltd Tank zur Lagerung von Flüssigkeiten, die auf extrem tiefen Temperaturen gehalten werden können
US3073065A (en) * 1958-01-20 1963-01-15 Frank E Alderman Expansion joint unit and method of installing the same
US3074586A (en) * 1958-10-30 1963-01-22 Liquefreeze Company Inc Shipper container
US3082483A (en) * 1960-02-29 1963-03-26 Gilman Brothers Co Method for producing a flexible, resilient, low density web of cellular plastic
US3108813A (en) * 1960-04-19 1963-10-29 Brown Co D S Masonry expansion joint seal

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1885391A (en) * 1931-04-02 1932-11-01 Goodrich Co B F Expansion joint
US2179542A (en) * 1933-10-26 1939-11-14 Armstrong Cork Co Insulated structure and method of making the same
US2068035A (en) * 1935-06-03 1937-01-19 Goodrich Co B F Packing strip
US2964424A (en) * 1955-06-15 1960-12-13 Mast Laban Bitumen-impregnated-foam packing material
US2869336A (en) * 1955-08-15 1959-01-20 Gen Motors Corp Refrigerating apparatus
US3073065A (en) * 1958-01-20 1963-01-15 Frank E Alderman Expansion joint unit and method of installing the same
AT213782B (de) * 1958-05-05 1961-02-27 Conch Int Methane Ltd Tank zur Lagerung von Flüssigkeiten, die auf extrem tiefen Temperaturen gehalten werden können
US3074586A (en) * 1958-10-30 1963-01-22 Liquefreeze Company Inc Shipper container
US3082483A (en) * 1960-02-29 1963-03-26 Gilman Brothers Co Method for producing a flexible, resilient, low density web of cellular plastic
US3108813A (en) * 1960-04-19 1963-10-29 Brown Co D S Masonry expansion joint seal

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3469510A (en) * 1966-01-24 1969-09-30 Edoco Technical Products Weakened plane joint former and seal
US3427776A (en) * 1966-06-14 1969-02-18 Tremco Mfg Co Self-adherent,shock absorbing,sealing and spacing strip
US3489311A (en) * 1967-05-25 1970-01-13 Aerojet General Co Tanks for storage of liquefied gas
US3495732A (en) * 1967-07-28 1970-02-17 Exxon Research Engineering Co Insulated cryogenic tank
US3693367A (en) * 1970-04-24 1972-09-26 Leonard J Di Peri Thermodynamic control device
US3655086A (en) * 1970-10-09 1972-04-11 Cryotan Inc Receptacles for the storage of liquefied gases at cryogenic temperatures
US3668880A (en) * 1970-10-16 1972-06-13 Martin Marietta Corp Capillary insulation
FR2124547A1 (enrdf_load_stackoverflow) * 1971-02-10 1972-09-22 Balsa Ecuador Lumber Cor
US3925041A (en) * 1973-12-28 1975-12-09 Union Carbide Corp Thermal swing gas adsorber
CN103727230A (zh) * 2012-10-10 2014-04-16 李华容 一种罐体焊缝密封的方法
CN105644712A (zh) * 2014-12-03 2016-06-08 江南造船(集团)有限责任公司 A型独立液货舱顶面中间防横摇支座绝缘的安装方法
CN105711738A (zh) * 2014-12-03 2016-06-29 江南造船(集团)有限责任公司 A型独立液货舱顶面两端防横摇支座绝缘的安装方法
CN105711738B (zh) * 2014-12-03 2018-03-23 江南造船(集团)有限责任公司 A型独立液货舱顶面两端防横摇支座绝缘的安装方法
CN105644712B (zh) * 2014-12-03 2018-03-23 江南造船(集团)有限责任公司 A型独立液货舱顶面中间防横摇支座绝缘的安装方法
US10378695B2 (en) * 2016-05-25 2019-08-13 Savsu Technologies Llc Cryogenic storage container
US11596148B2 (en) 2017-11-17 2023-03-07 Savsu Technologies, Inc. Dry vapor cryogenic container with absorbent core
US20240235308A1 (en) * 2021-05-12 2024-07-11 Vestas Wind Systems A/S Preformed coil for an electric machine having a perforated insulating body and method of making same

Also Published As

Publication number Publication date
ES285737A1 (es) 1963-08-01
NL289753A (enrdf_load_stackoverflow)
GB952564A (en) 1964-03-18
BE629198A (enrdf_load_stackoverflow)
DK125765B (da) 1973-04-30

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