Abstract: A corrosion resistant gas cylinder and gas delivery system includes an electroless nickel-phosphorous layer overlying the inner surface of a steel alloy cylinder. The nickel-phosphorous layer has a thickness of at least about 20 micrometers and a porosity of no greater than about 0.1%. The electroless nickel-phosphorous layer has a phosphorous content of at least about 10% by weight and a surface roughness of no greater than about 5 micrometers. Prior to introducing liquefied gas into the gas cylinder, a cleaning process is carried out using a two-step baking process to clean the surface of the nickel-phosphorus layer. The nickel-phosphorous layer substantially reduces the contamination of liquefied corrosive gasses stored in the gas cylinder by metal from the steel wall surface underlying the nickel-phosphorous layer.

Abstract: A container for goods, such as an item of luggage (1) has a storage compartment (4) having an outer member (7), a flexible inner lining (10) and an adjustable protection means (11) located between the outer member (7) and the lining (10). The adjustable protection means has two modes, a protection mode and a storage mode and is adjustable between the two modes.

Abstract: A full flow water connector assembly has a connector with prongs of a certain length that are separated by notches. The end of the connector with the prongs is passed through an opening in a diaphragm and the prongs protrude through respective slots in a diffuser/retainer member. The prongs are then bent so as to press the diffuser/retainer member so as to secure the diaphragm and hold the connector assembly together. The diffuser/retainer member has segments between the slots, the segments contacting the notches when the diffuser/retainer member is pressed sufficiently far. The length of the prongs beyond the notches limits the maximum amount of compression that the diffuser/retainer member can exert against the diaphragm material, thereby minimizing the chance of cracking and subsequent failure of the diaphragm material.

Abstract: A composite pressure vessel for storing gaseous media under pressure, having a plastic liner two neck pieces arranged in the neck region, and a winding of a fiber composite material that reinforces the liner. In the neck piece that accommodates the valve there is provided a clamping ring which can be screwed into the neck piece and has on the outer circumference a threaded section which is adjoined by a thread-free, frustoconical section. A groove is arranged between internally threaded sections of the neck piece to accommodate a sealing ring and extends radially into the neck piece. On the outside of the respective neck piece, in the region adjoining the collar, provision is made to arrange at least one bead which extends radially outward over the entire circumference.

Abstract: A corrosion resistant gas cylinder and gas delivery system includes an electroless nickel-phosphorous layer overlying the inner surface of a steel alloy cylinder. The nickel-phosphorous layer has a thickness of at least about 20 micrometers and a porosity of no greater than about 0.1%. The electroless nickel-phosphorous layer has a phosphorous content of at least about 10% by weight and a surface roughness of no greater than about 5 micrometers. Prior to introducing liquefied gas into the gas cylinder, a cleaning process is carried out using a two-step baking process to clean the surface of the nickel-phosphorus layer. The nickel-phosphorous layer substantially reduces the contamination of liquefied corrosive gasses stored in the gas cylinder by metal from the steel wall surface underlying the nickel-phosphorous layer.

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.

Abstract: This pressurized-gas storage assembly includes a pressure vessel having a gas storage chamber and access opening, a polar boss extending through the access opening, a plastic liner lining the gas storage chamber, and a fitting body. The plastic liner includes a nipple portion that extends into the polar boss, terminates at an annular rim, and has a screw-threaded radially inner surface region. The fitting body includes a head portion, an extension longitudinally extending from an end of the head portion and having a screw-threaded radially outer surface region, and an annular shoulder. The annular shoulder has an annular recess formed therein, with a compressible O-ring being accommodated within the annular recess.

Abstract: A pressure vessel insert comprises a plate having an outboard surface and an inboard surface interconnected by outer edge surfaces, and defining an aperture extending therethrough from the outboard surface to the inboard surface. The plate is provided with a modulus of elasticity within about 30% of a first modulus of elasticity of inboard and outboard skins of a wall portion of the pressure vessel shell around an opening in which the insert is disposed, in directions through the thickness of the skins.

Abstract: The present invention relates to a method for the manufacturing of very high pressure vessels so that they survive high cycle fatigue loading. In particular, the method requires creating a residual tangential stress at a bore radius of a vessel such that the stress under load is more compressive than a maximum applied internal pressure. Furthermore, the method may require creating a residual stress a the inner radii of the supporting jackets such that the stress under load is compressive or zero.

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 multiple wall tank for the storage of liquids is manufactured from a rigid, single wall inner tank having at least one aperture by applying an outer sheath over the inner tank, removing a portion of the tank surrounding the aperture, applying a layer of a synthetic resin material to the inner tank exterior surface surrounding the aperture, providing a spacing means to provide for substantially free passage of liquids between a substantial portion of the inner tank and the outer sheath and bonding a portion of the outer sheath to the synthetic resin layer surrounding the aperture to form a substantially liquid impervious seal around the aperture.

Abstract: A double wall tank for the storage of liquids is manufactured from a rigid, inner tank by helically extruding a synthetic resin outer sheath over the sidewall portion inner tank while preventing bonding between the extruded outer sheath and the inner tank, with outer end portions that are sealingly bonded to the outer sheath sidewall portion.

Abstract: A storage tank and method for making it is disclosed in which a first tank portion having a cylindrical sidewall is formed by helically extruding a plurality of partially overlapping layers of synthetic resin on a portion of a cylindrical form, with an end portion being formed and sealingly affixed to the sidewall portion, with the cylindrical form being removed from within the first tank portion, and then any remaining open cylindrical end being closed to form a closed cylindrical tank.

Abstract: A pressure vessel for holding a pressurized fluid such as compressed natural gas ("CNG") includes two end cells and zero or more interior cells. The cell geometry ensures that the cells meet one another at tangential circular surfaces, thereby reducing the tendency of adjacent cells to peel apart. A web secured about the cells includes two sheets that are tangent to the cells. Unused volumes between the cells and the web contain wedges of foam or rubber. A valve provides fluid communication between the interior of the pressure vessel and a pressurized fluid line. The filled weight of one pressure vessel does not exceed the filled weight of a conventional gasoline tank that occupies substantially the same space as the pressure vessel. The pressure vessel may be configured with exterior recesses for engaging conventional gasoline tank straps.

Abstract: A seamless steel-body cylinder, suitable for storing ultra-high purity gases, has an inert metal lining. The cylinder lining is preferably nickel and completely covers the interior surface of the steel cylinder body, preventing the stored gas from making any contact and reacting with the steel cylinder body. The surface of the inert metal lining is conditioned to be smooth, preferably to 15 R.sub.a or better. The cylinder body is preferably externally threaded to secure end closure devices to the cylinder body.

Abstract: The present invention is directed to a contactor having a microporous membrane and a shell surrounding the membrane. A shell has a fluoropolymer inner surface and a composite structural body. The fluoropolymer inner surface is integrated into the composite structural body.

Abstract: A propane fuel storage tank having a fuel-containing tank body with an outer printed sleeve made of linear heat-shrink plastic material heat-shrunk in tight fitting encircling relation about the tank for preventing viewing of surface imperfections in the tank beneath the sleeve. A method of making and reconditioning propane fuel tanks is disclosed which includes loosely positioning a sleeve of such linear heat-shrinkable plastic material about the tank body and exposing the plastic sleeve to a temperature above its heat-shrink temperature to cause it to contract and tightly conform about the outer perimeter of the tank. The sleeve preferably encompasses a central cylindrical side wall of the tank, portions of the upper and lower semi-spherical end walls of the tank, and the lower foot ring, which results in a like-new reconditioned tank without the necessity for complete removal of surface imperfections and prior adhesively applied labels, or the need for complete repainting of the tank.

Abstract: Systems are provided for vehicular, land-based distribution of pressurized liquefied natural gas at a pressure of about 1035 kPa (150 psia) to about 7590 kPa (1100 psia) and at a temperature of about -123.degree. C. (-190.degree. F.) to about -62.degree. C. (-80.degree. F.). The systems include at least one container that is constructed from an ultra-high strength, low alloy steel containing less than 9 wt % nickel and having a tensile strength greater than 830 MPa (120 ksi) and a DBTT lower than about -73.degree. C. (-100.degree. F.).

Abstract: A multiple wall tank for the storage of liquids is manufactured from a rigid, single wall inner tank having at least one aperture by applying an outer sheath over the inner tank, removing a portion of the tank surrounding the aperture, applying a layer of a synthetic resin material to the inner tank exterior surface surrounding the aperture, providing a spacing means to provide for substantially free passage of liquids between a substantial portion of the inner tank and the outer sheath and bonding a portion of the outer sheath to the synthetic resin layer surrounding the aperture to form a substantially liquid impervious seal around the aperture.

Abstract: A double wall tank for the storage of liquids is disclosed, comprising a rigid inner tank having an aperture formed through a sidewall of the inner tank, and an outer sheath of synthetic resin material having an opening generally overlying the inner tank aperture and a generally annular flange member attached to the inner tank and extending over a portion of the outer sheath adjacent to and surrounding the outer sheath opening to urge that outer sheath portion toward the inner tank sidewall to form a substantially liquid impervious seal between the outer sheath and the inner tank surrounding and proximal to the inner tank aperture. A generally cylindrical passage member is attached to the inner tank adjacent the aperture and extending through the annular flange member to provide a substantially liquid-tight passage into the inner tank through the aperture and the opening in the outer end of the cylindrical passage member.

Abstract: A multiple wall tank for the storage of liquids is manufactured from a rigid inner tank having at least one aperture by applying a layer of a synthetic resin material to the inner tank exterior surface around the aperture, providing a spacing means to provide for substantially free passage of liquids along at least a portion of the inner tank, applying over the layer of synthetic resin and the inner tank an outer sheath of a thermoplastic synthetic resin material, and bonding the outer sheath to the resin material layer surrounding and proximal to the aperture to form a substantially liquid-impervious seal around the aperture.

Abstract: A compact storage system for fluids is provided by multitudes of closely spaced parallel planes of adsorptive material (88) that is contained within a substantially impervious barrier layer (2). In normal pressure-containing embodiments, reinforcement (4) is wrapped upon the impervious barrier layer (2) to increase the burst strength of the assembly that results. In higher pressure containing embodiments, material (88) provides reinforcement of barrier layer (2).

Abstract: An internally pressurized fluid vessel, in particular for liquids and/or gases exerting pressure outwards from the container has a sandwich structure capable of withstanding the internal pressure. The vessel has an interior container, an outer jacket in which the container is positioned and a material filling the space between the container and the outer jacket.

Abstract: A boss for a pressure vessel with an outer reinforcing shell and an inner liner has a radially extending flange and a tubular neck projecting outwardly to provide a fluid communication port. The flange is embedded in and structurally integrated with the material of the inner liner during molding. The flange is divided by a conical annular groove into an outer skirt and an inner skirt. The inner skirt protrudes from the outer skirt and has a flattened end facing toward the vessel wall. The flattened end and/or the surfaces of the annular groove are textured, knurled or otherwise unevenly surfaced for gripping the liner material. A number of apertures extend from inside the groove to the opposite side of the flange. The liner material is molded on and in the groove of the flange and fills the apertures to form anchoring segments integral with the liner, extending through the flange to liner material on both sides.

Abstract: A pressurized vessel filled with a high purity gas, said vessel having a polymeric coating covering its internal surfaces;said high purity gases selected from the group consisting of hydrogen chloride, tungsten hexafluoride, chlorine, hydrogen bromide, nitrogen trifluoride, silanes and boron trichloride;said vessel filled with gas pressure from about 200 psig to about 6,000 psig; and the material for said polymeric coating selected from the group of polyperfluoroalkoxyethylene, copolymer of ethylene and chlorotrifluoroethylene and copolymer of ethylene and tetrafluoroethylene.

Abstract: A propane fuel storage tank having a fuel-containing tank body with an outer printed sleeve made of linear heat-shrink plastic material heat-shrunk in tight fitting encircling relation about the tank for preventing viewing of surface imperfections in the tank beneath the sleeve. A method of making and reconditioning propane fuel tanks is disclosed which includes loosely positioning a sleeve of such linear heat-shrinkable plastic material about the tank body and exposing the plastic sleeve to a temperature above its heat-shrink temperature to cause it to contract and tightly conform about the outer perimeter of the tank. The sleeve preferably encompasses a central cylindrical side wall of the tank, portions of the upper and lower semi-spherical end walls of the tank, and the lower foot ring, which results in a like-new reconditioned tank without the necessity for complete removal of surface imperfections and prior adhesively applied labels, or the need for complete repainting of the tank.

Abstract: The invention concerns a tank or silo vessel (10), in particular a vehicle-mounted vessel designed to hold liquid or other free-flowing goods, the elongated main body (12a) of the vessel having an essentially circular or elliptical or other cross section. The main body is closed off at each end by walls (12) which are conical, hemispherical or planar in shape, the main body (12a) and endwalls (12) enclosing a space (11) in the interior of the vessel. The vessel also has mountings (13) and pipe-connection facilities (14).

Abstract: A multiple wall tank for the storage of liquids is manufactured from a rigid inner tank having at least one aperture by applying a layer of a synthetic resin material to the inner tank exterior surface around the aperture, providing a spacing means to provide for substantially free passage of liquids along at least a portion of the inner tank, applying over the layer of synthetic resin and the inner tank an outer sheath of a thermoplastic synthetic resin material, and bonding the outer sheath to the resin material layer surrounding and proximal to the aperture to form a substantially liquid-impervious seal around the aperture.

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 double wall tank for the storage of liquids is manufactured from a rigid, inner tank by helically extruding a synthetic resin outer sheath over the inner tank while preventing bonding between the extruded outer sheath and the inner tank.

Abstract: The invention relates to a hollow fibre-reinforced plastic body comprising a curable resin-impregnated winding of high-strength fibres. To provide a strong hollow fibre-reinforced plastic body having a quick-to-make wall thickness the invention proposes that a double-walled shell which surrounds the hollow body interior is made by a first winding of one or more tapes of an uncut double pile cloth having a spaced-apart top cloth and bottom cloth and also binding pile threads which is covered by an outer winding, the windings being impregnated with a curable resin.

Abstract: A pressure vessel for holding a pressurized fluid such as compressed natural gas ("CNG") includes two end cells and zero or more interior cells. The cell geometry ensures that the cells meet one another at tangential circular surfaces, thereby reducing the tendency of adjacent cells to peel apart. A web secured about the cells includes two sheets that are tangent to the cells. Unused volumes between the cells and the web contain wedges of foam or rubber. A valve provides fluid communication between the interior of the pressure vessel and a pressurized fluid line. The filled weight of one pressure vessel does not exceed the filled weight of a conventional gasoline tank that occupies substantially the same space as the pressure vessel. The pressure vessel may be configured with exterior recesses for engaging conventional gasoline tank straps.

Abstract: A pressure vessel fitting which is non-metallic, thus, eliminating the need for the soldering, brazing or welding of the fitting which is necessary when conventional metallic fittings are used and, thus, eliminating the corrosion problems often encountered when metallic fittings are used. The pressure vessel fitting has a snap together design which eliminates the loosening problems under vibration which threaded connections are subject to, unless some type of retention or locking device is used. The non-metallic pressure vessel fitting generally comprises three components, namely, an internal fitting, a grommet and a snap retainer.

Abstract: A pressure vessel apparatus for containing fluid under high pressure and temperature including pressure surges caused by in-vessel explosions includes a vessel main body, a vessel top body and a vessel head. Elongated tendons interconnect the vessel main body to the vessel top body and elongated tendons with removable anchors also connect the vessel head to the vessel top body. The tendons with insulated protecting sleeves connecting the vessel main body to the vessel top body are chosen to allow the vessel top body to temporarily separate from the vessel main body before the vessel head separates from the vessel top body. These tendons may be mounted directly, on springs, or on dampers in order to provide optimum (minimum) response to the postulated load cases.

Abstract: The invention relates to a hollow fiber-reinforced plastic body comprising a curable resin-impregnated winding of high-strength fibers. To provide a strong hollow fiber-reinforced plastic body having a quick-to-make wall thickness the invention proposes that a double-walled shell which surrounds the hollow body interior is made by a first winding of one or more tapes of an uncut double pile cloth having a spaced-apart top cloth and bottom cloth and also binding pile threads which is covered by an outer winding, the windings being impregnated with a curable resin.

Abstract: A vessel having a first set of side walls extending from an integral end member with both side walls and end member having a first inner wall spaced apart from a second outer wall and composed of resinous material; and an intermediate single woven member disposed and bonded between the first inner and second outer walls. Examples of such vessels are boat hulls and boat bulkheads. An alternative embodiment vessel is constructed by bonding together two of the first vessels on an edge of the side walls to form a tank for containing fluids. Methods of making these vessels are also disclosed.

Abstract: A pressure vessel is disclosed for holding fluids. The vessel includes a generally cylindrical outer shell fabricated of a substantially rigid, mechanically strong material, and having a generally hemispherical end section with an opening therein. An inner, generally fluid impervious flexible liner is disposed in the outer shell against the inside surface thereof. The liner has a generally hemispherical end section with an opening aligned with the opening in the outer shell. A boss has a neck portion for fitting in the opening in the outer shell. A generally hemispherical extension projects radially outwardly of the boss substantially entirely to the cylindrical configuration of the outer shell against the inside surface of the inner liner to prevent the generally hemispherical end section of the liner from pulling away from the outer shell.

Abstract: A liquified gas tank overfill protection system for use in a tank having a hermetically sealed chamber. The overfill protection system includes a shroud mounted in the chamber in a spaced relationship to the interior side of the chamber. The shroud divides the chamber into a plurality of spatially normally communicating portions. Preferably, the shroud has a generally elongated concave downward shape.

Abstract: The present invention provides a method for coating the interior surface of a cylinder with a uniform, relatively thick layer of a polymeric material. The method includes the steps of dispersing a particulate polymeric material into the interior cavity of a cylinder. Any openings in the cylinder are then closed. The cylinder is then subjected to rotational movement while at the same time subjecting the cylinder to oscillation in a vertical plane. The polymeric material is then heated to a temperature above the melting point of the polymeric material, and maintained at that temperature for a time sufficient to coat the polymeric material onto the interior surface of the cylinder. The rotation and oscillation of the cylinder is then halted and the polymeric material is cooled.

Abstract: Each of insulation panels which form together an insulation layer is fixed on a tank body at one point at the center of the panel. An insulation material having elasticity at low temperature is filled in a joint between the adjacent panels. A heat insulator having elasticity at a given temperature and high heat insulating property is airtightly fitted in the joint. A balance hole for preventing pressure change is provided in the insulation layer.

Abstract: Pressure vessel apparatus includes upper and lower pressure vessel housings maintained together under pressure by tendons. Bellows are connected to the pressure vessel housings in order to provide leaktight barriers, and to permit motion of the pressure vessel housings. The tendons are divided into two sets, with the tendons of each set of tendons being stressed differently than the tendons of the other set of tendons. The apparatus when utilized as a nuclear reactor pressure vessel includes a core catcher with flotation pool connected to and disposed below the pressure vessel housings and defining a core catcher interior in communication with the pressure vessel interior for receiving core material from the pressure vessel interior resulting from reactor melt-down.

Abstract: A storage tank for compressed natural gas (CNG) comprises a hydroxy-phenoxyether polymermethane barrier liner and a fiber composite outer shell. The hydroxy-phenoxyether polymer has a methane transmission rate of not more than about 50 cc-mil/100 in.sup.2 -day (19.5 cm.sup.3 -mm/m.sup.2 -atm-day) at 25.degree. C. and 2000 psi (13,800 kPa) methane pressure.

Abstract: Lightweight compressed gas cylinders are incorporated into a module which contains manifolding and which is designed for easy loading, unloading and transport on a flat-bed truck or other vehicle, particularly a roll-on roll-off transport truck, which is a specialized truck for mechanized handling of large containers. The module eliminates the need to retain the vehicle itself at the site of use. While a variety of cylinders of composite construction to achieve light weight can be used, certain novel composite cylinders whcih are particularly useful are also disclosed. These cylinders have a lightweight metallic liner or core cylinder wrapped with three layers of wound fiber. The inner and outer layers are axially-wound glass fiber and the intermediate layer is hoop-wound carbon fiber.

Abstract: A dual-chamber composite pressure vessel includes a first enclosure formed of a fiber reinforced resin matrix, having a hollow cylindrical central section, and first and second oblate end sections formed integrally over respective ends of the central section to define a first chamber. Also included is a second enclosure formed of a fiber-reinforced resin matrix, integrally with the first enclosure, and having a second hollow cylindrical section which is joined at one end to and extends from the second end section co-cylindrically with the central section of the first enclosure. The second enclosure also includes a third oblate end section formed integrally over the other end of the second cylindrical section to define a second chamber.

Abstract: A multi-layer plastic fuel tank is constituted by at least one high-density polyethylene layer, at least one polyamide layer, and at least one modified high-density polyethylene layer made of high-density polyethylene modified with an unsaturated carboxylic acid or its derivatives, which is interposed between each high-density polyethylene layer and each polyamide layer for bonding them, the polyamide layer being made of a polyamide copolymer comprising 90-60 weight % of polyamide 6 and 10-40 weight % of polyamide 66.

Abstract: The invention teaches apparatus suited for holding highly corrosive solvents heated under sealed conditions to temperatures up to 500.degree. C., for even extended durations. The apparatus is in the form of an open top vessel having a removable cover therefor, a seal cooperating between the vessel and cover, and clamping structures isolated radially beyond the seal from the vessel contents to hold the cover and vessel sealed together. The vessel and cover can be made structurally of chemically resistent material, such as a nickel alloy; or can be made as a separate chemically resistent liner, cover and seal structure contained within an outer pressure shell and cover, and clamping structures. The liner, cover, and seal would be formed of chemically resistent tantalum (Ta), platinum (Pt) or polytetrafluoroethylene. Gem-quality diamonds can be refined by using different related vessels exclusively to hold respective caustic, acid and rinse solvents, and moving the diamonds from vessel to vessel sequentially.

Abstract: A ceramic fiber fabric such as an alumino-boro-silicate fabric is impregnated with a silicone elastomer to form a composite material. The fabric may be reinforced with hoops or rings to provide a free-standing insulation. The insulation is attached to the wall of a tank. The tank may be subjected to cryogenic temperatures such as during a cryostretch tank formation procedure, without cracking or spalling the insulation. The insulated tank can withstand exposure of elevated temperatures such as about 2000.degree. F.

Abstract: A weldment, such as the wall of a pressure vessel, is formed from segments, each of which includes a steel substrate, a protective layer of tantalum which is exposed to the interior of the vessel and an intervening layer of copper which lies between and is bonded to the substrate and the protective layer. The substrate and the two layers which form the cladding are explosively bonded together and the bonding procedure may leave the protective layer with small domes or embossments and pockets of trapped gas behind the embossments. The two segments are welded together edge-to-edge at their substrates, with their protective and intervening layers aligned. If one were to follow the traditional procedure, one would place a tantalum batten strip over the protective layers along the opposed edges so as to cover the edges, and then weld the batten strip to the protective layer along the edges of the strip.

Abstract: A vehicle-mounted double-walled ellipsoidal cryogenic storage vessel includes an inner vessel enclosed by an outer shell to form an insulation chamber therebetween. Both the inner vessel and the outer shell are formed in the same manner. An elliptical pressure head of circular cross-section is cut along a diameter to form two end halves. An end wall is secured between the two end halves to form an end, which is secured to an end of a wall like cross-section. This process is repeated with another pressure head to form the other end of the storage vessel. Storage vessels may be constructed of any size desired to allow sufficient ground clearance when mounted under a vehicle.

Abstract: A prestressed pressure vessel safety enclosure is used as a pressure safety enclosure for a nuclear reactor pressure vessel or other primary system vessel containing fluid or gaseous material under high pressure, such as, steam generators, pressurizers and pumps. The special pressure vessel enclosure comprises a first pressure vessel containment assembly surrounding the primary pressure vessel. A pair of first upper and lower pressure vessel jackets are adapted to enclose and be spaced apart, respectively, from the upper and lower portions of the first pressure vessel containment assembly with the rims of the jackets adapted to be slidable and sealed with respect to the first pressure vessel containment assembly. The spaces between the jackets and pressure vessel containment assembly are filled with a high boiling point, low melting point metal.