Abstract: A thermal insulating jacket for use around pipes, conduits, tanks and related members according to the present invention includes a flexible outer covering such as a sheet of plastic or polyvinylchloride which has bonded to its surface an alternating series of insulation material strips. The insulation material strips which are bonded to the flexible outer covering include a first plurality of flexible insulation material strips and a second plurality of rigid insulation material strips. These different material strips are arranged in alternating sequence and the combination of outer covering and insulation strips is sufficiently flexible and formable so as to be wrapped into a generally cylindrical shape which may then be disposed around a pipe, conduit, tank or related member, for thermally insulating that member. The outer covering may be a one-piece member or a hinged member.

Abstract: A flexible, impermeable textile fabric tube is coated with a first polymeric layer which is opaque and to which is applied a second polymeric layer containing metal particles, preferably of good thermal reflectivity. The second layer is clear, or at least translucent, in the absence of metal particles.

Abstract: A hose for use in marine loading is disclosed in which are disposed two reinforcing layers, one being formed of a selected fibrous cord and the other of a selected steel cord. The fiber and metal layers are laid in this order over a hose core tube, the layers and the core tube being defined in their total thickness not exceeding half the overall hose thickness. The hose is highly resistant to kinking and sufficiently absorptive to pressure on surging.

Abstract: The nonfreezing pipe with a double wall construction comprises an inner shell having openings at its opposite ends, an outer shell extending axially around the inner shell to form an annular space surrounding the inner shell, and at least one end closure member connecting between one end of the outer shell and the external wall portion of the inner shell. The annular space is evacuated.

Abstract: A closable through insulation access aperture liner to permit inspection of the wall of an insulated pipe or vessel which liner isolates insulation and prevents insulation material, such as asbestos, from contamination of workers and work area.

Abstract: A thermal insulating jacket for use around pipes, conduits, tanks and related members according to the present invention includes a flexible outer covering such as a sheet of plastic or polyvinylchloride which has bonded to its surface an alternating series of insulation material strips. The insulation material strips which are bonded to the flexible outer covering include a first plurality of flexible insulation material strips and a second plurality of rigid insulation material strips. These different material strips are arranged in alternating sequence and the combination of outer covering and insulation strips is sufficiently flexible and formable so as to be wrapped into a generally cylindrical shape which may then be disposed around a pipe, conduit, tank or related member, for thermally insulating that member. The outer covering may be a one-piece member or a hinged member.

Abstract: An insulated exhaust pipe comprising inner and outer spaced corrugated metallic tubes separated by refractory fiber isulation. Strips of higher density refractory fiber insulation hold the low density insulation in place during operation and prevent degradation of the fiber by vibration. The pipe is made by rolling the inner tube over a layer of insulation, including strips, to which adhesive has been applied. The insulated tube is then inserted into the outer tube, rotating the insulated tube so that the corrugations of the outer tube do not damage the insulation. Specific structure for carrying out these method steps is disclosed.

Abstract: Attachment means for connecting an insulated pipe to an element, such as the manifold, in the exhaust system of a vehicle. The attachment means includes a conduit which extends into the end of the insulated pipe. A transverse lug or a helical flange on the conduit engages the spiral corrugations of the inner diameter of the pipe to allow the conduit to be threaded into the pipe. The end of the pipe is received in an end cap slidably mounted on the conduit. When the cap hits a stop on the conduit during threading of the conduit into the pipe the lug or helical flange pulls the pipe against the cap, tightening the connection to the pipe.

Abstract: Method for the permanent mutual connection of the ends of at least two already finished metal tubes (1,2,3), consisting in placing the ends of said tubes in a mould, particularly an injection moulding mould, whereby one tube end or several tube ends is or are arranged around a tubulous part of a metal body (4), closing the mould and filling the mould with liquid plastics material, so that after the setting of the plastics material and the opening of the mould the ends of the tubes (1,2,3) are joined together, whereby before closing the mould the or each of said tube ends (1,2,3) as well as the tubulous part of the metal body (4) present therein is locally depressed over a certain distance.

Abstract: Two concentric corrugated metal tubes have a space therebetween in which there is arranged a superinsulation layer. Between the inner tube and the superinsulation layer there is located a helical spacer to ensure an annular channel to facilitate the evacuation of the space between the corrugated tubes. The spacer is formed of interlaced strands to reduce heat conduction therethrough.

Abstract: A thermal insulating jacket for use around pipes, conduits, tanks and related members according to the present invention includes a flexible outer covering such as a sheet of plastic or polyvinylchloride which has bonded to its surface an alternating series of insulation material strips. The insulation material strips which are bonded to the flexible outer covering include a first plurality of flexible insulation material strips and a second plurality of rigid insulation material strips. These different material strips are arranged in alternating sequence and the combination of outer covering and insulation strips is sufficiently flexible and formable so as to be wrapped into a generally cylindrical shape which may then be disposed around a pipe, conduit, tank or related member, for thermally insulating that member. The outer covering may be a one-piece member or a hinged member.

Abstract: A transfer tube is produced comprised of a high density ceramic oxide tube having a low density multi-layered ceramic oxide shell directly bonded to its outer surface wall.

Abstract: An apparatus for vertically supporting an internal conduit subject to temperature fluctuations comprising a conduit with shear lugs secured around its perimeter. These shear lugs rest upon a spool member surrounding the conduit that is configured to permit the thermal expansion/contraction of the supported conduit as needed. This spool member is, in turn, supported by an outer casing in a manner permitting the spool member to move or rotate independent of the casing. In this fashion, no rigid connector couples the internal conduit to the outer casing, instead a spool member provides the necessary support while being fully movable with respect to both the internal conduit and the outer casing.

Abstract: In connection with installations comprising articles housing or conducting corroding material, or in connection with substantially pipe- or hose-shaped articles which are to be protected against fire, for example a propulsion motor in a vehicle, it is in accordance with the present invention suggested, rather than using steel pipes and/or steel containers, to use plastic articles which by nature is corrosion resistant. Plastic articles which preferably are pipeshaped (1) are insulated by means of a combination of a light thermally insulating material (2) which normally cannot stand exposure to fire (approximately 800.degree. C. and higher), and a fire resistant material (3) which is provided around said insulating material (2), and which at high temperature (approximately 800.degree. C. and higher) renders a ceramic stable fire protecting phase.

Abstract: In a pipe line for an engine, in particular a cooling line in aircraft construction, the walls of the pipe line are composed of a load-bearing inner layer (2) of fibre reinforced, curable synthetic resin and of a heat insulating outer layer (3) of fibre reinforced curable synthetic resin, bonded to the inner layer (2). For the production of the two layers (2, 3) a removable core (1) is used, for example composed of a low melting metal alloy.

Abstract: A flexible body member is constructed so as to be wrapped around a hose at connector portions thereof and has overlapping side portions. The body member has releasable securement on its overlapping areas and also has a widened portion intermediate the ends thereof for accommodating the interfitting coupling members and for holding the device on the coupling members. The releasable securement on the overlapping side areas is by continuous and full length fastening elements such as Velcro. The device also has padding to provide desired cushioning and insulation.

Abstract: A metal-ceramic heat-insulating structure having a metallic tubular member fitted with a hollow cylindrical sintered ceramic, the inner surface of which is to be exposed to elevated temperatures. The sintered ceramic is bound to the metallic tubular member by means of a ceramic powder compacted in a gap located between the two members.

Abstract: An insulation system including support for lagging, especially metal lagging, supports lagging at a distance above industrial piping and prevents fibrous insulation, used to insulate the piping, from being compressed and eventually significantly damaged by foot traffic, thus creating a treadable insulation system with valuable application in nuclear reactor containment areas.

Abstract: A metallic outer sleeve 10 is provided which is capable of enveloping a hollow metallic inner member 12 having continuous reinforcing fibers 14 attached to the distal end thereof. Inner member 12 is then introduced into outer sleeve 10 until inner member 12 is completely enveloped by outer sleeve 10. A liquid matrix member 20 is then injected into space 22 between inner member 12 and outer sleeve 10. A pressurized heat transfer medium 23 is flowed through the inside of inner member 12, thereby forming a fiber reinforced matrix composite material 26. The wall thicknesses of both inner member 12 and outer sleeve 10 are then reduced to the appropriate size by chemical etching, to adjust the thermal expansion coefficient of the metal-clad composite structure 28 to the desired value.

Abstract: A flexible, thermally insulated conduit has a central pipe and a coaxial casing spaced therefrom by annular spacers, defining a series of seated chambers. The chambers are filled with a foam material.

Abstract: Pipe insulation comprising a number of substantially identical, annular bodies cut out in the shape of sheets from mineral wool, glass wool or similar fibre materials and having such a fibre structure that their compressibility is biggest in axial direction, the mineral wool bodies being put together around a common axis and wrapped in a resilient, crepe-structured or pleated sheet material glued to the mineral wool. In order to make possible the bending of the pipe insulation also in the case of the glue being hardened to such an extent that it has become hard and brittle, the glue is applied in the shaped of essentially parallel rows of glue points, the rows running substantially perpendicular to the axis of the insulation and forming between themselves an encircling band of glue-free sheet material.

Abstract: A heat insulating structure for low-temperature or cryogenic pipings, comprising at least one heat insulating barrier and at least one moisture barrier which are laid on the outer surface of a piping to be heat-insulated, and at least one sheating layer, wherein said heat insulating barrier comprises an extruded styrenic resin foam and wherein, as expressed in terms of the three-dimensional coordinates X (circumferential direction), Y (thicknesswise direction) and Z (longitudinal direction), said heat insulating barrier has a Y-axial water vapor permeability Py of 1.5 g/m.sup.2 .multidot.hr or less and at least the heat insulating barrier most adjacent to said piping has X-axial and Z-axial elongations at rupture Ex and Ez in the range of 8 to 40 percent.

Abstract: A pipe support system is disclosed having one or more members interposed between a pipe support, which may be a pipe hanger strap or a support cradle, and a pipe such that the pipe is directly supported by, and spaced from, the support. The generally "U" shaped members each have a base portion, a pair of leg portions extending from the base portion and a flange portion extending from the distal end of each of the leg portions. The members are oriented such that the base portion bears against the support, while the flange portions bear against an outer surface of the pipe. External pipe insulating material may pass through the "U" shaped members between the leg portions and between the base portion and the pipe surface. The members serve to directly support the pipe from the support without compressing the insulation layer in any fashion. The "U" shaped members may be attached to semi-cylindrical cover members which extend on either side of a hanger support.

Abstract: A tube of a muffler for an internal combustion engine includes at least two generally rectangular sheets which are joined together at one end by crimping and wound in a tubular configuration to constitute two consecutive layers. In the tubular configuration, the other end of each of the two sheets overlaps the sheet itself and welded to the latter straddling a coupling portion where the two sheets are joined. While one of the sheets which constitutes an inner layer of the tube is made of a material which is resistive to corrosion due to chemical reactions with combustion gas and others flowing through the tube, the other which constitutes an outer wall of the same is made of a material which withstands adverse ambient conditions such as briny air and high humidity.

Abstract: An improved heat insulating jacket slit lengthwise thereof held closed by a unique pair of dissimilar separable snap-lock seam members formed of extruded plastic and designed for heat-fused assembly to the inner plastic layer of flexible laminated sheeting having an outer layer nonfusible to said seam members. Each seam member includes a narrow groove sized to snugly seat and conceal the adjacent lateral edge of the sheeting. Each seam member includes internesting snap-lock members positioned to interlock when laminated sheeting fused thereto is wrapped about ducting. A blanket of resilient heat insulating material is laminated to the inner plastic layer of the sheeting and aids in holding the seam members interlocked.

Abstract: A chimney liner system for insertion into a masonry chimney from the top of the chimney down to a stove or fireplace insert. If an offset or a chimney shelf exists in the chimney, a flexible metal pipe member is connected to the bottom end of the chimney liner system. A ceramic heat resistant cloth formed as a sleeve encloses the flexible metal pipe member in selected systems, and in some systems, the sleeve encloses the entire chimney liner system. In some applications, the sleeve may be made from a fiberglass cloth sewn or connected to an inner blanket insulation.

Abstract: Improveds insulation segments for fluid conduits such as pipes and ducts, having a nontacky moisture resistant strip which extends along edges of the insulation which are adapted to be secured to other portions of the insulation, or to other insulation segments using a pressure sensitive, adhesive tape. This strip preferably comprises a cured adhesive which bonds to the paper or other surface to which it is applied which provides a good, dry, dirt free, smooth surface to which the pressure sensitive adhesive tape will strongly adhere.

Abstract: A cover comprised of two half sections which have end portions that interlock in place to form a closed cover. More specifically, a pipe fitting cover that is used to protect various types of pipe fittings against the intrusion of water and other elements.

Abstract: A plastics elbow cover (A) capable of being positively and securely mounted on an elbow section of piping. The elbow cover includes a tab (9, 10) extending from each of two sides of a cover section (8) which fits over the pipe. One of the tabs (9) includes: a tongue (9a) which engages a hole (10c) formed by a bridge (10d) on the other tab (10).

Abstract: A vibration isolator particularly suited to isolating a closed cycle refrigerator in a cryopump includes a bellows having o-rings made of vibration damping material secured between the corragations of the bellows. A soft damping material maintains a low spring constant and also dampens all frequencies transmitted into the isolator.

Abstract: A plastics cover for a piping which comprises a plastics cover body of a wide strip-like shape and a substantially T-shaped rib arranged on one side edge of the cover body. The rib includes a leg portion connected to the cover body and a wing portion, so that an inner groove and an outer groove is defined between the wing portion and the cover body. Mounting of the cover on a pipe is carried out by interengaging a first engagement projection on the inner surface of the wing portion and a second engagement projection on the outer surface of the other side edge of the cover body.

Abstract: A pipefitting cover specially designed to enclose an insulated Y-shaped joint is disclosed comprising two half sections, one adapted to the shape of a straight pipe segment and the other adapted to interlock with the other section while also accommodating an additional pipe segment protruding at an angle from the first straight pipe segment.

Abstract: Insulated pipe especially but not exclusively intended for subsea pipelines for transport of oil, gas and similar products which pipe comprises a steel pipe as core, a layer of corrosion protection material, a layer of thermally insulating material surrounding this and an external protective layer surrounding the insulating layer. To improve such insulated pipes so that they are capable of resisting occurring stresses even when placed under water at great depths the three layers contain rubber, the lyaer further containing cork up to 30-70% by volume.

Abstract: Inorganic fibrous pipe insulation in the shape of a tube comprising outer and inner flexible sheets on the outer and inner cylindrical surfaces of the tube. A majority of the fibers are at right angles to the flexible sheets and therefore extend radially of the pipe to offer good compression resistance to impact. By using substantially non-stretchable material for the inner sheet a fibrous layer whose fibers are generally perpendicular to the layer can be permanently formed into generally cylindrical shape. For insulation designed to cover very small diameter pipes the thickness of the fibrous layer is varied to provide fewer adjacent the inner flexible sheet than are adjacent the outer flexible sheet.

Abstract: A kit, which is particularly intended for the fireproof laying of cables and ducts, has endwise connectable, self-supporting components made from thermally insulating material and substantially elongated metal reinforcements. The self-supporting components are duct sections (4 to 12), which in each case comprise a trough section (4' to 12') made from thermally insulating material and externally reinforced by longitudinally continuous sheet metal parts (16) and which has a substantially U-shaped cross-section, and a cover (4" to 12") also made from a thermally insulating material. The trough sections (4' to 12') being in each case equipped for the cover-less laying of the duct (1), are connectable with adjacent trough sections (4' to 12'); and the associated covers (4" to 12") are detachably fixable.

Abstract: A heat insulating tube, primarily for underground mining, is provided with an outer casing and an inner casing, separated from the other casing by a connecting element and a series of spacer rings. The distance between the connecting element and the spacer rings as well as between the spacer rings themselves is in the range of about 20 to 50 times the diameter of the inside casing.

Abstract: A novel plastic pipe coated on the outer surface with a thermal insulating layer comprising phenolic foam, and wherein the layer is enclosed in an integrity retaining layer serving as a top or outer layer, comprising fibers, such as glassfibers, which fuse together upon exposure to fire, thereby providing mechanical strength to the foam when the pipe is exposed to fire.

Abstract: A double wall tank for the storage of liquids is manufactured from a rigid single wall inner tank by applying to at least a portion of the exterior surface of the inner tank a plurality of spaced apart, generally parallel beads of a hardenable, viscous liquid synthetic resin spacer material to form, between adjacent beads, one or more channels that provide for substantially free passage of liquids through the channels. A substantially imperforate film is stretched across the beads and over the one or more channels to separate the inner tank and the beads from subsequently applied sheathing material. A substantially rigid outer sheathing material that is substantially liquid-tight is applied over the inner tank exterior and the beads and the film overlying the beads such that the sheath is spaced from at least a portion of the inner tank exterior surface so as to provide a rigid double wall tank.

Abstract: A double wall tank for the storage of liquids is manufactured from a rigid single wall inner tank by applying to at least a portion of the exterior surface of the inner tank a hardenable synthetic resin spacer material and forming in the spacer material one or more channels that provide for substantially free passage of liquids through the channels. A substantially imperforate film is stretched across the spacer material and over the one or more channels to separate the inner tank and the spacer material from subsequently applied sheathing material. A substantially rigid outer sheathing material that is substantially liquid-tight is applied over the inner tank exterior and the spacer material and the film overlying the spacer material such that the sheath is spaced from at least a portion of the inner tank exterior surface so as to provide a rigid double wall tank.

Abstract: An insulation system for pipes which includes segments of fiberglass insulation or other mineral fiber slit along their length for surrounding the pipe, a butt strip tape for sealing abutting ends of the segments of insulation, and means for sealing a flap on the insulation segment covering the slit after the pipe has been inserted therethrough. The butt strip tape is a laminated tape which includes a layer of paper, a layer of fiberglass, a layer of foil and a pressure sensitive acrylic adhesive. The means for sealing the slit may be either an adhesive film cast on a release liner and applied to the flap or a double sided adhesitve tape. The double sided tape is a laminate which has an adhesive layer on each side of a central, thin substrate. The adhesive used in all instances is an isooctyl acrylate polymer which is approximately a 100% acrylate compound having a solvent content no greater than 0.5%. The adhesive allows the tape to be applied at temperatures ranging frong -17.degree. F. to 158.degree. F.

Abstract: Pipes or pipelines for transporting sewage, water, slurries, liquid and gaseous hydrocarbons, and the like are interlined with flexible composite tubular lining material. The lining material is matched to the crosswise dimension of the pipe and is adapted to be insertable thereinto and to fit snugly against the inner wall thereof. The lining material comprises a flexible matrix member having a netlike open-meshed configuration, thereby being adapted to receive into its interstices foamable material adapted to expand outwardly upon foaming, into and about irregularities in the wall surface, and to solidify there. The matrix member preferably is extensible lengthwise, and thus reducible in size crosswise, when under axial tension. When released from axial tension, the matrix member recovers to its previous dimensions, except as it may be confined, as against an inside wall of a pipe or pipeline.

Abstract: A plastic pipe with a hard outer shell lined with an inner shell of soft resilient plastic foam with a smooth central axial passageway adapted to be a conduit for liquid. A method of manufacturing this pipe which comprises simultaneously extruding the material for the outer shell and the foamable material for the inner shell into a pipe forming die.

Abstract: A pipe hanger insulation support is provided and consists of a top segment of heavy density insulation shaped to fit upon top of a pipe, a bottom segment of high compressive strength insulation shaped to fit upon bottom of the pipe and a jacket to surround both segments in which a pipe hanger can bear against.

Abstract: A method is described for manufacturing a rigid double wall tank from a rigid single wall cylindrical inner tank, in which a substantially rigid sheath is formed over a male mold which has a configuration generally similar to that of the inner tank and provides for molding of projections on the inner surface of such cylindrical sheath portion. The cylindrical sheath portion is then removed from the mold and introduced over the inner tank with the projections extending from the cylindrical inner surface of the sheath to the outer surface of the inner tank, and sheath end portions are applied to the axial extremities of that cylindrical sheath portion, forming a complete sheath enclosing the inner tank.

Abstract: The specification discloses a low-cost, simple, and efficient duct system for conveying heated and/or cooled air throughout a building. The system includes duct assemblies and transition components for interconnecting the duct assemblies. Each duct assembly includes an insulated duct having a rigid sleeve within at least one end. Each sleeve includes an abutment ring and orifices in the ring for permitting air to flow into the insulated layer to balloon the layer and improve its insulative effect. Each transition component includes a rigid external skeleton and a plurality of duct board panels fitted therein. After the sleeves are fitted within openings in the duct board panels, the tabs are deformed to retain the abutment rings in engagement with the panels.

Abstract: Hot gas container, including a pressure-proof metallic outer shell having an inner surface, thermal insulation covering the inner surface in the form of ceramic bodies each having a given surface, the bodies partially axially overlapping each other over at least the larger part of the given surface thereof, and anchors fastening the bodies to the outer shell, the anchors being welded to the outer shell, engaged in recesses formed in the bodies and covered by the outer shell and the bodies.

Abstract: A refractory sheathing (1) of incombustible, compressed, flat insulating bodies (8) made of mineral or ceramic fiber for thermally insulating pipes (10) in preheating furnaces fired from below in the steel industry is described. The insulating bodies (8) have an inner and, if desired, also an outer arc-shaped profile, they enclose the pipes (10) to be insulated totally or almost totally in circumferential direction, and they are secured at the pipe in close mutual abutment by at least two retainers which engage the ends of a plurality of adjacent insulating bodies (8) forming a stack of insulating bodies. The risk of separating from the pipe during the constant vibrations of the same is reduced and the space requirement for installation at the building site as well as the cost of mounting involved are scaled down by the line-up of a plurality of insulating bodies (8) on a plurality of spaced apart rods (11) to form a highly compressed insulating body stack.

Abstract: The structural member, such as a pipe has a pipe wall, whose inner and outer surfaces are formed by plastic surface layers. Between the surface layers is provided a space, which is filled with a material differing from that of the surface layers. If the structural member is used as a foundation part of a structure, the space is filled with a material or a non-porous plastic for increasing the strength and stability of the pipe, while for other, that is overlying structural members, the space is filled with a lower density material, such as PUR (Polyurethane) foam, or is in the form of a cavity. Thus, the foundation parts are not subject to unnecessarily high loading and material is saved. Playing and gymnastic structures with a random spatial arrangement can be formed from the structural members.

Abstract: An underwater cryogenic pipeline system comprising an insulated underwater pipeline in an integral open frame is disclosed. The pipeline is anchored to the frame at a plurality of spaced apart locations. Bellows-type expansion joints between the pipe anchors compensate for contraction in the pipeline. The frame, which is anchored to the soil at at least one location, resists axial forces in the system and wave and current loadings. The system is preferably fabricated in modules and assembled on site.

Abstract: A pipeline system designed for withstanding elevated levels of pressure from external sources. Pressurized gas is introduced into an annulus between an outer pipe jacket and insulation material, which in turn surrounds a pipe, to supply structural support.