Abstract: A pressure vessel for storing a fluid, comprises an outer jacket applied to a plastic core container, the outer jacket comprising a first fibre-reinforced reinforcing device with one or several wound layers comprising first fibres that are embedded in a first matrix material, a second fibre-reinforced reinforcing device formed on the outside of the first device and with one or several wound layers comprising second fibres that are embedded in a second matrix material, and an impact-absorbing thickening of the outer jacket in a polar cap region of the plastic core container. The thickening is formed in that one or several wound layers that are thickened in the polar region are formed in at least one of the reinforcing devices with a face opening that is larger than a face opening of other non-thickened wound layers in at least one of the reinforcing devices.

Abstract: Provided is a bonding structure of a metal member and a composite-material member which comprises a composite-material member and a metal member adhesively bonded to the composite-material member through an adhesive bonding surface therebetween. The metal member has a slit extending along the adhesive bonding surface to form a thin-walled portion between the adhesive bonding surface and the slit.

Abstract: This high pressure gas tank is a tank in which a fiber-reinforced resin layer is formed around an outer periphery of a tank liner by fibers impregnated with thermosetting resin being wound around the outer periphery of the tank liner. The fiber-reinforced resin layer includes an inside layer formed on the tank liner side, and an outside layer formed on an outer periphery of the inside layer. The inside layer is formed as a dense layer, while the outside layer is formed as a layer that is less dense than the inside layer by forming a larger number of airspaces in the outside layer than there are in the inside layer.

Abstract: A pressure vessel having a hollow body wound with a continuous filament, whereby the filament is embedded in a thermoplastic matrix, is provided, as well as a method for producing such a vessel. The method involves: (i) wrapping a hollow body with at least one continuous filament; (ii) impregnating the filament winding with a polymerizable mixture, whereby the wound body is inside a mold that surrounds the wound body; and (iii) polymerizing the polymerizable mixture in order to form a plastic matrix that embeds the filament winding.

Abstract: A pressure vessel is provided including an inner tank formed from a tank liner surrounded by a wound layer of composite filaments. A protective jacket is disposed on the inner tank that facilitates stacking and portability of the pressure vessel and helps to define an air passage for convective heat transfer between the hybrid tank and the environment.

Abstract: The invention provides a fiberglass reinforced plastic pressure tank including a first tank section and a second tank section; a welded diffuser plate having and a weld guide disposed about a circumference of the diffuser plate and including first and second weld grooves; a first weld joint between the first weld groove and the first tank section; a second weld joint between the second weld groove and the second tank section; wherein the welded diffuser plate forms a hermetic seal in an exterior wall of the combined tank sections, and further wherein the welded diffuser plate seals the plastic tank sections together and contains the diffuser plate inside the welded plastic tank.

Abstract: Method to improve the barrier properties of composite gas cylinders and high pressure gas cylinder having enhanced barrier properties. The instant invention pertains to a new method for improving the barrier properties of composite gas cylinders for the storage of gas, by wrapping the outer surface of a composite gas cylinder with a plastic film comprising a barrier material in a winding process. The composite gas cylinder comprises an inner liner made of polyolefin and an outer fibre-reinforced, pressure supporting layer. The barrier material may comprise polyamide, polyester, halogen substituted polymer, EVOH or a metallization. The invention pertains also to a high pressure composite gas cylinder having enhanced barrier properties and its use as a fuel tank in gas driven automotive vehicles equipped with a combustion engine.

Abstract: Method to improve the barrier properties of composite gas cylinders and high pressure gas cylinder having enhanced barrier properties The instant invention pertains to a new method for improving the barrier properties of composite gas cylinders for the storage of gas, by sheathing the outer surface of a composite gas cylinder with a tubular plastic film comprising a barrier material and shrinking it by heat treatment to approach a strong connection. The composite gas cylinder comprises an inner liner made of polyolefin and an outer fibre-reinforced, pressure supporting layer. The barrier material may comprise polyamide, polyester, halogen substituted polymer, EVOH or a metallization. The invention pertains also to a high pressure composite gas cylinder having enhanced barrier properties and its use as a fuel tank in gas driven automotive vehicles equipped with a combustion engine.

Abstract: A step of forming a low-angle helical layer on an outer surface of at least part of each liner dome portion and an outer surface of a liner cylindrical portion, a step of forming an inner hoop layer on an outer surface of the low-angle helical layer on the liner cylindrical portion, and a step of forming a mixed layer by alternately laminating a low-angle helical layer and an outer hoop layer on an outer surface of the inner hoop layer and low-angle helical layer on each liner dome portion. Then, on the liner cylindrical portion, 90% or more of the sum of the thickness of the inner hoop layer and the thickness of the outer hoop layer in the mixed layer is arranged within the range of 75% of the fiber reinforced plastics layer adjacent to the liner in a thickness direction of the fiber reinforced plastics layer.

Abstract: Disclosed herein is a composite pressure vessel with a liner having a polar boss and a blind boss a shell is formed around the liner via one or more filament wrappings continuously disposed around at least a substantial portion of the liner assembly combined the liner and filament wrapping have a support profile. To reduce susceptible to rupture a locally disposed filament fiber is added.

Abstract: The disclosure provides a pressure vessel for storing a fluid, comprising an outer jacket applied to a plastic core container, the outer jacket comprising a first fibre-reinforced reinforcing device with one or several wound layers comprising first fibres that are embedded in a first matrix material, a second fibre-reinforced reinforcing device formed on the outside of the first device and with one or several wound layers comprising second fibres that are embedded in a second matrix material, and an impact-absorbing thickening of the outer jacket in a polar cap region of the plastic core container. The thickening is formed in that one or several wound layers that are thickened in the polar region are formed in at least one of the reinforcing devices with a face opening that is larger than a face opening of other non-thickened wound layers in at least one of the reinforcing devices.

Abstract: A pressure container has an inner shell with a pair of fittings and a reinforcement layer formed around the inner shell, and is configured so that a reinforcement member is attachable to the pair of fittings in a process of forming the reinforcement layer and a functional component which performs a predetermined function is also attachable to the fittings. This can allow the reinforcement member to prevent expanding deformation of the pressure container in production of the pressure container, and can ensure effective use of openings after removal of the reinforcement member.

Abstract: A vessel for holding a pressurized fluid is disclosed, the vessel having a hollow inner shell formed from a moldable material and forming a cavity therein, an intermediate shell formed over the inner vessel, and an outer shell formed over said intermediate shell, said outer shell having a ceramic layer formed on an outer surface thereof.

Abstract: A high-pressure tank configured to store a fluid includes: a liner; and a fiber-reinforced resin layer configured to include a fiber and to cover surface of the liner. The liner includes: a cylindrical liner portion in a cylindrical shape; and dome liner portions in a dome shape connected with respective sides of the cylindrical liner portion, each dome liner portion being connected with the cylindrical liner portion, such that an outer surface of the dome liner portion is inclined at a predetermined angle to an outer surface of the cylindrical liner portion. The fiber-reinforced, resin layer includes a hoop layer formed on the outer surface of the cylindrical liner portion to cover the outer surface of the cylindrical liner portion and provided by hoop winding that winds the fiber substantially perpendicularly to a central axis of the cylindrical liner portion.

Abstract: A structure and method for bonding heat-insulating protection walls of a liquefied natural gas carrier is provided. Each of the heat-insulating protection walls is formed of an insulation foam layer and a fiber-reinforced composite reinforcing sheet attached to a surface of the insulation foam layer. The heat-insulating protection walls are provided in a tank of the liquefied natural gas carrier in a mutually adjoining relationship and bonded to one another at a junction to keep the tank cold. The structure includes a fiber-reinforced composite joint sheet positioned in alignment with the juncture of the heat-insulating protection walls and bonded to the fiber-reinforced composite reinforcing sheet by an adhesive agent and a spacer interposed between the fiber-reinforced composite reinforcing sheet and the fiber-reinforced composite joint sheet for keeping the adhesive agent uniform in thickness.

Abstract: A tank (1) for storing fluid under high pressure, of cylindrical overall shape and round cross section comprising at each of its ends along its axis (2), a metal end piece (3, 4), a liner (6) enveloping the said end pieces, and a structural layer (7) of fiber impregnated with thermosetting resin enveloping the said liner.

Abstract: The present invention provides a method for producing a pressure tank for holding a pressurized fluid, comprising the steps of providing a shaped body; arranging one or more elements of a textile sheet material of reinforcing fibers on the shaped body; impregnating the reinforcing fibers, before or after the arrangement of the element or elements on the shaped body, with a thermosetting or thermoplastic resin; and curing the resin to form a composite fiber material surrounding the shaped body. The invention also provides a pressure tank for holding a pressurized fluid, comprising a hollow body which defines a storage space for the fluid, and a composite fiber material surrounding the hollow body which comprises one or more elements of a textile sheet material. The invention further provides a pressure tank group comprising a plurality of such pressure tanks.

Abstract: One exemplary embodiment includes a gas storage tank comprising a structural outer layer, an internal liner layer, an annular boss, and a liquid sealant disposed between the overlapped section of the liner layer and the boss to provide a gas-tight seal.

Abstract: Provided is a toroidal pressure vessel having extremely high pressure resistance. Laminating latitudinal reinforcing fiber layers (32) enables to improve a strength in a latitudinal direction of a pressure vessel (1). Moreover, putting reinforcing fibers (32a) constituting those laminated latitudinal reinforcing fiber layers (32) in continuity enables to further improve the strength in the latitudinal direction of the pressure vessel (1), for example compared with a case where the reinforcing fibers are divided for each layer.

Abstract: A composite pressure vessel assembly method includes fitting an end portion of a tubular member into an annular slot formed in an end cap. Sealant may be in the annular slot. The end cap includes an annular groove in an exterior surface of the end cap body portion. A first material layer is formed on an exterior surface of the tubular member. The first material layer includes a first composite material including fibers oriented circumferentially to the tubular member. A second material layer is formed on the first material layer with a portion of the second material layer being disposed into the annular groove, and includes a second composite material including fibers oriented axially to the tubular member. A third material layer is formed adjacent the second material layer and in the annular groove, and includes a third composite material including fibers having an orientation circumferential to the tubular member.

Abstract: A linerless tank structure has a body that defines an enclosed interior volume. The body has a cylindrical section having an axis of symmetry and a dome section coupled with the cylindrical section. The construction of the pressure vessel includes multiple fiber plies. At least one of the fiber plies is a helical ply having fibers traversing the dome helically about the axis of symmetry. At least a second of the fiber plies is a braided or woven ply.

Abstract: A vessel for holding a pressurized fluid is disclosed, the vessel having a hollow inner shell formed from a moldable material and forming a cavity therein, an intermediate shell formed over the inner vessel, and an outer shell formed over said intermediate shell, said outer shell having a ceramic layer formed on an outer surface thereof.

Abstract: A pressure vessel is provided including an inner tank formed from a tank liner surrounded by a wound layer of composite filaments. A protective jacket is disposed on the inner tank that facilitates stacking and portability of the pressure vessel and helps to define an air passage for convective heat transfer between the hybrid tank and the environment.

Abstract: A pressure vessel is provided including an inner tank formed from a tank liner surrounded by a wound layer of composite filaments. A protective jacket is disposed on the inner tank that facilitates stacking and portability of the pressure vessel and helps to define an air passage for convective heat transfer between the hybrid tank and the environment.

Abstract: A composite pressure vessel, comprising: a liner assembly, further comprising: a liner; at least one of a polar boss and a blind boss; and a shell, further comprising: at least one layer of a filament wrap continuously disposed around at least a substantial portion of the liner assembly, wherein the liner assembly and the filament wrap combined have a non-homogenous support profile; and at least one fiber segment locally disposed on an area of the liner assembly and the at least one layer of a filament wrap that may be more susceptible to rupture than other areas of the liner assembly, according to the non-homogenous support profile. Complementary pairs of fiber segments and/or hoops may be configured to address a non-homogenous stress distribution profile of the composite pressure vessel.

Abstract: A method of making a cylindrical pressure vessel (11) with a large diameter port in its sidewall includes the step of providing a mandrel (23) of desired diameter and filament winding upon the same. After winding one overall innermost layer, an annular reinforcement belt (16) is helically wound atop a defined region using a band (60) of resin impregnated parallel strands (39) under tension. The annular belt (16) is then itself helically overwound with the resin impregnated parallel strands of filamentary material under tension to provide two complete outer layers. After curing and removal from the mandrel (23) at least one aperture (71) is cut in the sidewall within the reinforcement belt (16) and a side port fitting (75) is installed in the aperture (71).

Abstract: A container for cryogenic liquids comprises an inner container and an outer container which are positioned with respect to each other and are thermally decoupled from each other by a vacuum insulation layer. In order, with the lowest possible weight and lowest possible costs in series production, to achieve the best possible heat insulation, the inner container and the outer container are in each case composed of prepared fiber-reinforced elements which are in each case wrapped up together with a filament and are thereby connected to one another, and supports which are also composed of a fiber-reinforced plastic are provided on the inner container for the relative positioning of the inner container with respect to the outer container.

Abstract: A pressurized gas container is provided with a rigid inner container and with a projectile-proof casing. The projectile-proof casing surrounds the inner container on the outside and is of an elastic material having a high tensile strength in the peripheral direction.

Abstract: A method for manufacturing a part having a resin-impregnated fiber layer (4) formed by hardening resin-impregnated fiber has a forming procedure for forming the resin-impregnated fiber layer (4). The forming procedure includes a winding process for winding a predetermined amount of the resin-impregnated fiber and a gelling process for gelling the resin in the wound portion of the resin-impregnated fiber. In the forming procedure, the winding process is performed again after the winding process and the gelling process are performed, whereby a predetermined amount of the resin-impregnated fiber is wound on the gelled resin-impregnated fiber.

Abstract: A composite overwrapped pressure vessel is provided which includes a composite overwrapping material including fibers disposed in a resin matrix. At least first and second kinds of fibers are used. These fibers typically have characteristics of high strength and high toughness to provide impact resistance with increased pressure handling capability and low weight. The fibers are applied to form a pressure vessel using wrapping or winding techniques with winding angles varied for specific performance characteristics. The fibers of different kinds are dispersed in a single layer of winding or wound in distinct separate layers. Layers of fabric comprised of such fibers are interspersed between windings for added strength or impact resistance. The weight percentages of the high toughness and high strength materials are varied to provide specified impact resistance characteristics. The resin matrix is formed with prepregnated fibers or through wet winding. The vessels are formed with or without liners.

Abstract: A linerless tank structure has a body that defines an enclosed interior volume. The body has a cylindrical section having an axis of symmetry and a dome section coupled with the cylindrical section. The construction of the pressure vessel includes multiple fiber plies. At least one of the fiber plies is a helical ply having fibers traversing the dome helically about the axis of symmetry. At least a second of the fiber plies is a braided or woven ply.

Abstract: Pressure vessel for a pressurized medium which is capable of flow, providing a first reinforcement composed of fibers which are applied as a winding and which are embedded in synthetic resin, wherein in addition to the first reinforcement, a second reinforcement is provided, wherein said second reinforcement has an elongation at fracture which is lower than that of the first reinforcement, wherein the first reinforcement, considered alone, is sufficient to entirely absorb the forces resulting from the pressure of the medium in the pressure vessel, and wherein means are provided which are suitable for indicating a fracture of the second reinforcement.

Abstract: The invention relates to a pressure-resistant body (10), such as a pressure pipe or pressure container, consisting of a steel base body (12), a first layer (14) of a ceramic fiber composite that surrounds the exterior of the base body and at least one second layer (16) of a fiber-reinforced plastic and/or a fiber-reinforced ceramic that is situated on the first layer.

Abstract: A process prevents a reduction in the strength of the joint between the liner components, and assures high productivity without impairment. The peripheral walls (6, 7) of the liner component (4) and each of the second liner components (5) are brought into contact with each other, a probe (22) of friction agitation joining tool (20) is placed into the two liner components across the contact portions thereof, and the probe (22) in rotation is thereafter moved relative to the two liner components (4, 5). Assuming that the number of revolutions of the probe (22) is R rpm and that the speed of joining of the two liner components (4, 5) is V mm/min, R/V is in the range of 2?R/V?12.

Abstract: To provide a fiber reinforced resin sleeve that is superior in mechanical strength in low cost and easily without enlarging the sleeve and increasing the weight of the sleeve, a method for manufacturing an internal pressure container in which both end portions of a fiber reinforced resin sleeve 1 formed by continuously winding a fiber in a filament winding method with both ends having larger diameters are closed by closure lids 2, and the closure lids 2 are supported by retainer rings 3 coupled to the sleeve 1, comprising the following steps of: continuously winding the fiber, impregnated with the resin, on a mandrel substantially in a perpendicular direction to an axial direction of the mandrel to form a first layer F; setting the first layer F so that a distal end is located in a position at a predetermined position L from an end of the sleeve 1 and a proximal end is located in a position inside of the closure lid 2 and the retainer ring 3; subsequently continuously winding the fiber on the first layer F at

Abstract: A method of forming a fitting assembly in a filament-reinforced pressure vessel, and a pressure vessel having a fitting assembly secured therein. In the method, a first fitting portion is bonded to an inner surface of a thermoplastic liner in a fluid tight manner. A layer of commingled reinforcing filaments and plastic material is applied to an outer surface of the thermoplastic liner to form a vessel wall. A portion of the vessel wall adjacent to the opening bounded by the fluid-tight seal between the first fitting portion and the inner surface of the thermoplastic liner is removed. Then, a second fitting portion is bonded to the first fitting portion so as to define a port for access into the interior of the vessel.

Abstract: A pressure vessel is disclosed which includes a lower metallic dome having a lower rim portion, and an upper metallic dome having an upper rim portion, a plastic liner disposed within the upper and lower metallic domes, a metallic band disposed between the plastic liner and the upper and lower metallic domes proximate the respective rim portions thereof, and an insulating material disposed between the metallic band and the plastic liner, the metallic band and insulating material protecting the plastic liner from elevated temperatures when the upper and lower rim portions of the metallic domes are welded together. A method of fabricating the pressure vessel and a connector for assembling the pressure vessel are also disclosed.

Abstract: An impact and fire resistant coating laminate is provided which serves as an outer protective coating for a pressure vessel such as a composite overwrapped vessel with a metal lining. The laminate comprises a plurality of fibers (e.g., jute twine or other, stronger fibers) which are wound around the pressure vessel and an epoxy matrix resin for the fibers. The epoxy matrix resin including a plurality of microspheres containing a temperature responsive phase change material which changes phase in response to exposure thereof to a predetermined temperature increase so as to afford increased insulation and heat absorption.

Abstract: A filament-wound tank portion of an electric water heater has a wall opening through which an electric heating element of other structure extends into the interior of the tank. The opening is reinforced by a stacked series of single layer, open weave patch members which are interdigitated with layers of the filament winding and through which the opening extends. The filament winding and the patches are impregnated with and intersecured by a cured resin material. As an alternative to cutting portions of the patches during formation of the tank wall opening, the patches may be provided with suitable pre-formed openings with reinforced peripheries, the subsequently formed tank wall opening extending through these reinforced, pre-formed patch openings. The single layer, open weave patches are also utilized to reinforce other types of filament-based tank wall structures.

Abstract: A method is disclosed for reinforcement of thin wall hollow thermoplastic storage vessels with one or more wraps of continuous fibers. This method requires thermal bonding between the reinforcement fibers and the outer surface of the thermoplastic storage vessel while the interior cavity of the storage vessel is being pressurized. The fiber wraps can also be oriented in spatial directions further resisting internal stress on the storage vessel walls when put in service.

Abstract: A method is disclosed for reinforcement of thin wall hollow thermoplastic storage vessels with one or more wraps of continuous fibers. This method requires thermal bonding between the reinforcement fibers and the outer surface of the thermoplastic storage vessel while the interior cavity of the storage vessel is being pressurized. The fiber wraps can also be oriented in spatial directions further resisting internal stress on the storage vessel walls when put in service.

Abstract: A process of fabricating a composite vessel includes the steps of: A) fabricating a thermoplastic liner for the vessel; B) overlaying a layer comprising fiber and a thermoplastic material (preferably by winding commingled filaments, rovings or yarns) onto the thermoplastic liner to obtain a composite intermediate structure (the fiber and thermoplastic material can be heated if desired during the overlaying, e.g. winding, step); C) heating the composite intermediate structure in a mold while applying at least one force thereto tending to urge the composite intermediate structure against and into the shape of the interior walls of the mold; D) continuing step C) until the thermoplastic liner and the overlaid layer consolidate to form a composite vessel; E) cooling the mold and composite vessel until the composite vessel is solidified; and F) removing the formed composite vessel from the mold.

Abstract: A pressure vessel for containing a fluid at elevated pressure features an unstressed corrugated metallic liner forming part of a hermetic seal. The liner has corrugations extending parallel to a first direction to accommodate deformation in a second direction perpendicular to the first direction. Around the liner is a filler layer of elastic material forming a contiguous layer adjacent to the external surface of the liner and filling the corrugations. An external primary load-bearing container has at least one wall made of fiber-reinforced composite material adjacent to the filler layer. The shape of the primary container, the reinforcing directions of the fiber-reinforced composite material, and the mechanical properties of the filler layer are configured such that, under a given change in the pressure of the contained fluid, a strain caused in the liner parallel to the first direction is at least one order of magnitude less than a corresponding strain in the second direction.

Abstract: A method of producing a generally tubular, reinforced, structure including an inner layer of braided material having a predefined indentation configuration, the method including the steps of providing a mandrel having a shape and configuration of indentations corresponding to the shape and indentation configuration of the inner layer, providing a plurality of support members in the vicinity of at least some of the indentations on the mandrel, the support members protruding a predetermined distance radially outwardly from the mandrel, depositing the inner layer over the mandrel and the support members, and removing the support members to a position in which the support members do not protrude the surface of the mandrel.

Abstract: A one piece, lightweight, compressed gas module designed for easy loading, unloading and transport to and from automobiles, aircraft, etc. as well as easy transport across a variety of terrains including floors, asphalt, and other surfaces. The compressed gas module includes a pressure vessel and frame wherein the frame includes a vertical member and horizontal members extending perpendicular to the vertical member at opposing ends of the vertical member. The pressure vessel includes polar ends wherein each polar end includes a boss for rigidly engaging a respective horizontal member whereby the pressure vessel forms a load bearing component of the module in combination with the frame.

Abstract: Systems and methods for producing and storing pressurized liquefied natural gas (PLNG) are provided, wherein the systems and methods include (a) a natural gas processing plant suitable for producing PLNG; and (b) at least one container suitable for storing the PLNG, the at least one container comprising (i) a load-bearing vessel made from a composite material and (ii) a substantially non-load-bearing liner in contact with the vessel, said liner providing a substantially impermeable barrier to the PLNG. The systems and methods also preferably include (c) means for transporting the at least one container containing PLNG to an import terminal.

Abstract: The invention relates to a process for the manufacture of fiber-reinforced pressure vessels and the product produced therefrom. A vessel liner is wrapped with resin-impregnated fibers and cured according to conventional technology. The cured, fiber-wrapped liner is then subjected to a pre-treatment process comprising both elevated temperature and pressure over time. The elevation in temperature allows the resin to soften. The increased pressure imparts a tensile load in the fibers. The tensile load causes fibers to stretch and straighten in the resin. After cooling to typical operating temperatures, and when pressurized for duty, the now straightened fibers are capable of responding immediately to the tensile load and the burst strength of the vessel is increased as a result. The process can be combined with autofrettage in series or simultaneously to achieve even greater final strength.

Abstract: An innovative technology for composite overwrapped pressure vessels (COPVs) has been developed which significantly increases cost effectiveness, increases reliability, and reduces weight over state-of-the-art COPVs. This technology combines an innovative thin liner made of a metal having a high modulus of elasticity and a high ductility, a high-performance composite overwrap and a high-performance film adhesive at the overwrap/liner interface. The metal liner can be fabricated from readily available titanium alloy sheet and plate using a combination of spin forming and machining to fabricate components and electron-beam welding for tank assembly. The composite overwrap is filament-wound onto an adhesive-covered titanium liner and the overwrap and adhesive are co-cured in an oven to yield an integrated tank structure.

Abstract: A tank contains a liquid while being transported by a moving vehicle. The tank includes a shell having an annular wall interconnecting opposite longitudinal end walls. The annular wall and the end walls define an interior compartment. The shell also has a substantially horizontal length direction and a substantially horizontal width direction perpendicular to the length direction. Two substantially planar longitudinal baffles are disposed within the interior compartment of the shell. Each longitudinal baffle is oriented substantially vertically and substantially parallel to the length direction of the shell. Each longitudinal baffle has a first side facing the annular wall. Each longitudinal baffle also has a second side. The second sides face each other. A plurality of substantially planar latitudinal baffles are disposed within the interior compartment of the shell. Each latitudinal baffle is oriented substantially vertically and substantially parallel to the width direction of the shell.

Abstract: A composite laminated, generally cylindrical container for over-the-road transportation of liquids by truck is fabricated using a core of cellular thermoplastic expanded foam material, with an encapsulating layer adhered to each of the interior and exterior surfaces. The encapsulating layers of the cylindrical portion each utilize at least one layer of resin-impregnated unidirectional filament material, with the primary filaments extending in the longitudinal direction to provide bending strength, and a plurality of layers of spirally wound, resin-impregnated filaments to resist shear, torsion and external and internal pressure. The core and the encapsulating layers define a bonded sandwich type of construction. The container can be supported only at its forward and rearward ends during over-the-road transportation of liquids, like presently available stainless steel containers.