Abstract: A hot pipe from an automobile manifold is shielded from other components in the engine compartment by attaching a two part shield around the pipe and clamping it in place. Each part is formed of two sheets of metallic material sandwiching therebetween a fibrous layer of heat insulating material. The layers of each of the shield parts are formed to a shape to conform to the shape of the hot pipe to be shielded prior to installation.

Abstract: A heat insulated hose includes an approximately cylindrical inner layer having a helical cavity portion formed by unbonded overlapping of a part of a polyvinyl chloride band material, helical reinforcing wire of hard resin incorporated inside the cavity portion, a heat insulating layer made of a foam resin band which is helically wound around the cavity portion at the same pitch as the cavity portion, and an outer layer made from a soft polyvinyl chloride band covering an outer periphery of the heat insulating layer. The reinforced wire is a double layer wire including a core wire of polyolefin resin and a cover layer of soft polyvinyl chloride covering an outer periphery of the core wire, and the cover layer is made to adhere to an inner wall portion of the cavity portion with use of an adhesive agent or by thermal fusing.

Abstract: This patent describes an insulating jacket that is removable and reusable, for insulating a hot or cold fluid distribution system. The jacket is made of a plurality of sections which mate and seal together to effectively seal the valve off from the surrounding ambient atmosphere. Each of the jacket sections can be made of a clear thermoplastic material and the entire assembly is designed to employ the trapped air, between the inside wall of the jacket and the system element, as the insulator.

Abstract: The invention relates to improvements in an apparatus, such as pipelines (2) and associated equipment and to a method of making, insulating, providing buoyancy to, recovering and installing submarine apparatus. The marine or submarine apparatus comprises an impermeable enclosure (1) associated with the apparatus (2), which enclosure is tightly packed with hollow microspheres (3) to a density where, when submerged in use, the internal pressure of the microspheres is greater than or substantially equal to the water pressure on the apparatus.

Abstract: A heat insulating noise reducing duct includes: an internal layer formed by helically winding a flat fibrous band and integrally bonding outer circumferential faces of adjacent joint parts of the band by resin reinforcing bands to thereby form a substantially smooth cylindrical shape; one or more resin linear bodies helically wound between these adjoining resin reinforcing bands and bonded to the fibrous band; an open-cell foam layer formed by helically winding an open-cell foam resin band onto an outer circumferential face of the inner layer while making its paired side edges abut each other; an intermediate sheet layer formed by helically winding a thin resin sheet-like band onto an outer circumferential face of the open-cell foam band while partially overlapping the resin sheet-like band, and by integrally bonding the overlapped parts; a closed-cell foam layer formed by helically winding a closed-cell foam resin band onto an outer circumferential face of the sheet layer while making its paired side edges a

Abstract: Methods of forming highly insulated pipeline bundles made up of one or more flow lines positioned within a continuous larger diameter outer sleeve are provided. The methods basically comprise the steps of filling the space between the outside of the flow lines and the inside of the outer sleeve with a foamed cement composition comprised of hydraulic cement, water, a gas and a foaming agent, allowing the hydration reaction between the hydraulic cement and the water in the cement composition to take place, and then heating the hydrated cement composition to evaporate and remove excess water in the cement composition and thereby increase the insulating properties of the cement composition.

Abstract: A flexible insulated air duct is provided with a core of a helical wire encapsulated in a tape, an insulation blanket wrapped around the core, and a jacket with a diamond interlock scrim on the outside of the insulation blanket. The jacket is comprised of an inside layer, a diamond-interlock scrim, a parallel scrim, and an outer coat layer. The diamond-shaped scrim has yarns arranged in a criss-crossed pattern, while the parallel scrim has yarns arranged in parallel. The criss-crossed yarns are made from a heavier gauge material with better tensile strength than that of the parallel yarns. The inside layer, the parallel and criss-crossed yarns, and the outer layer are laminated together using an adhesive. The completed jacket is pulled over the insulation blanket and the inner core to form a flexible air duct having a jacket with a diamond interlock scrim.

Abstract: The present invention relates to a combination of an A and B adhesive reacting together through a scrim material in a laminated combination, and wherein the B adhesive has great adherence characteristics to a vinyl nitrile foam, and the A adhesive has great adherence characteristics to itself. Thus a laminate of the A adhesive/scrim/B adhesive to each side of a slit in a vinyl nitrile foam tubular insulation, with appropriate release liners covering the outside A adhesive, has been found to be particularly effective. When the release liners are removed and the A adhesives pressed together, a very strong bond is created closing the slit in the vinyl nitrile foam insulation holding the tubular vinyl nitrile foam in place on the tubular member to be insulated. Normally, this is utilized in an air conditioning application with the piping or tubes running from the compressor to the air conditioning unit, and wherein vinyl nitrile foam insulation has proven to be the best insulating material for this application.

Abstract: A rigid fiber glass duct board for air ducts in which the air contacting surface is a mat facing formed from a saturated polyester/glass mat which presents a smooth surface to flowing air and hence avoids surface degradation at very high air velocities. A method of forming such a board is also disclosed.

Abstract: A removable insulation jacket for a fluid carrying conduit includes an inner backing layer preformed to securely fit around the conduit. Insulation material is affixed to the inner backing layer and joined to an outer shell. The insulation jacket is placed around the conduit by engaging the insulation jacket with the conduit along an axial opening formed along the length of the insulation jacket, and the opening is then sealed at the outer shell to secure the insulation material about the conduit. The insulation jacket is pleated to conform to bends and curves that may occur along the length of the conduit.

Abstract: A tubular longitudinal clamp is used to fix thermal insulation along piping within the clamp. The clamp comprises an open tubular body having one end with a larger diameter than the other end so that the tubular clamps can be fitted together by insertion of the smaller diameter end of one clamp into the larger diameter end of a second clamp. An embodiment of the invention includes a thermal insulation system for high or low temperature piping. Insulating material in parts of several lengths or helicoidal application with a width identical to the perimeter of an industrial pipe is installed on the pipe and is clamped thereto with a series of open tubular clamps mated one to the other.

Abstract: A duct for gas flow applications is provided with a replaceable insulating duct liner that can be axially inserted into and removed from a tubular shell of the duct. Preferably, the replaceable insulating duct liners comprise fibrous and/or cellular insulation materials. Duct systems using duct sections with replaceable insulating duct liners can be maintained by removing duct sections from the system; removing the replaceable insulating duct liners from the duct sections; inserting new replaceable insulating duct liners into the duct sections; and replacing the duct sections into the duct system.

Abstract: Discharge pipe for discharging hot substances, which discharge pipe consists of an outer pipe, and an inner pipe placed coaxially inside the outer pipe, the inner pipe and the outer pipe enclosing a space, which is filled up with insulating means. The insulating means consist of a first layer (7) of compressible material surrounding the outside of the inner pipe (3), and a second layer (6) of concrete with very good thermal insulating properties which surrounds the first layer (7) and is surrounded by the outer pipe (2). The inner layer (7) consists of compressible material with high thermal insulation properties, such as ceramic wool. The discharge pipe is made up of several lengths of pipe (1), the successive lengths of pipe being fixed to each other by means of fixing means (13), and a compressible layer (12) of material with good thermal insulating properties, being placed between the contact faces of two successive lengths of pipe.

Abstract: A shaping member for the finishing of junctions for "Climaver Plus" type glass wool piping comprising a unitary flat plate of bendable material which can be folded into sections to form a shape such that the shaping member can be placed at the junction of two glass wool elements.

Abstract: A method and apparatus for re-insulating underground steam pipe in situ includes the steps of creating at least one hole in the ground, inserting a liner into the hole, using a drill string to drill a hole in the conduit, inserting a tubing into the liner so that a first end of the tubing is positioned next to the pipe and a second end of the tubing is attached to a pumping system. The foam is then pumped through the tubing around the pipe and then the tubing is removed and the foam is allowed to cure and become rigid, thereby functioning as insulation.The plastic foam may be a polyisocyanurate or a urethane-modified polyisocyanurate.

Abstract: A protective sleeve for a fluid pipe is disclosed. The sleeve includes an inner and outer member which provide heat, sound and abrasion resistance. The inner member includes a pair of terminal edges which are spaced apart a predetermined distance. This distance is greater than the distance between the terminal edges of the outer member. A method of making such a protective sleeve is also disclosed.

Abstract: An improved trunk-line structure comprising a plurality of elongate beer lines and glycol lines made of flexible plastic tubing in parallel juxtaposition; an elongate sheath of high tensile strength, tear resistant, flexible plastic material is tightly engaged about and extending longitudinally of the assembly of beer and glycol lines and holds the lines in set position relative to each other; an elongate tube of soft, flexible, resilient, thermal insulating foam plastic material is engaged about and extending longitudinally of the sheath; and, a skin of inhervious, soft, flexible and resilient plastic material is positioned about and extending longitudinally of the tube, the plastic materials of which the parts of the trunk-line structure are made have low indexes of heat conductivity.

Abstract: A flexible, thermally insulated fluid conduit including a central pipe, which is spirally wrapped with thermal strip insulation under plastic deformation of an amount not exceeding 10%. The insulation is covered with an extruded, continuous casing.

Abstract: A reusable single layer insulation jacket for splicing and termination of industrial tubing, fittings and valves carrying extreme hot and cold materials comprises a fiberglass mat. The mat is of a width as to completely wrap the tubing, fitting or valve and overlap itself whereat complementary releasable fastening means securely hold the mat in place to insulate the tubing, fitting or valve from fire and to prevent an individual from otherwise being burned from contacting the tubing, fitting or valve.

Abstract: Concentric conduits are supplied for the purpose of minimizing heat transfer from within the inner conduit through the outer conduit. The air gap or annulus around the inner conduit is filled with a resin mixture which is mixed with vermiculite and mineral fiber to form a slurry. The slurry is pumped into an open end of the annulus to fill the annulus and enhance the heat insulation characteristics of the concentric conduits.

Abstract: A heat-insulating assembly (10) for insulating a surface of a tubular body (30) relative to the ambient air comprises a length of an annular heat-insulating body (12, 14) defining an inner cylindrical surface (17) and an outer cylindrical surface (16). A vapor-barrier layer is applied to and covers the outer cylindrical surface of the annular heat-insulating body. A through-going slit (11, 15) extends through the annular heat-insulating body (12, 14) in the entire length thereof for allowing the annular heat-insulating body (12-14) to be opened for positioning the annular heat-insulating body (10) circumferentially encircling the tubular body (30) so as to position the inner cylindrical surface (17) juxtaposed the surface of the tubular body (30).

Abstract: A getter material is provided which efficiently sorbs gases at low pressures but, when a system failure causes high pressures of hydrogen and oxygen (air) to be present, does not increase its temperature to that which would cause explosive ignition of the hydrogen-oxygen (air) mixture.

Abstract: Heat-reflective and protective sleeving is provided which has both an interior and an exterior convoluted profile. The sleeving includes layers of polymeric material, insulative material and reflective material which is assembled together into the convoluted profiles. A method and apparatus are provided for manufacturing the convoluted sleeving by wrapping a fabric-backed foil over a convoluted polymeric tubing while pushing the laminate into the grooves and over the crests of the convoluted profile of the polymeric tubing. In the preferred arrangement which is shown, this procedure is facilitated by the use of a plurality of worm gears that rotate substantially in unison in order to pull the convoluted polymeric tubing through an area defined by the worm gears, while simultaneously forming the convolutions in the laminate at the same time that the laminate is engaged with the external convoluted surface of the polymeric tubing.

Abstract: A low corrosion resistant pipe 1 is jointed with a high corrosion resistant pipe 2 directly or via a coupling 3. An insulating ceramic film having a thickness of 0.4 .mu.m and a resistivity of 10.sup.8 .OMEGA. cm or more is formed on the outer and inner surfaces of the pipes 1 and 2 at a length L of 60 mm or more from the end of the pipe and on the surface which forms a space when the pipes 1 and 2 are jointed at a coverage ratio of 90% or more to less than 100%.

Abstract: An insulating blanket for a bulkhead in an engine nacelle comprises a fabric backing layer, a central insulating core, a ceramic precursor-impregnated hot-side fabric layer and, as required, erosion-preventing wire mesh. The backing layer comprises a fiberglass fabric. The insulating core comprises a ceramic felt. The hot side layer comprises one or more layers of resin-impregnated fiber glass fabric. The blanket is precured to provide a predetermined geometric shape.

Abstract: A tubular sheath made from plastic material used for the mechanical and/or thermal protection of electric cabling is wrapped in a strip of sound-insulating material, the lateral parts of which have been inserted inside the sheath through the slit. The width of the strip, preferably produced from felt, is substantially equal to the sum of the external and internal perimeters of the plastic sheath.

Abstract: Thermally insulative sleeves include a seamless, hollow, flexibly resilient inner tubular member woven of strand material including at least one metal wire strand, a separate, integral, at least essentially unbroken, metal surface member applied over the inner tubular member extending along and at least essentially completely surrounding the inner tubular member and a flexible outer cover also woven of strand material extending along and completely around the inner tubular member and metal surfaced member securing the metal surface member with the inner tubular member and offering some degree of protection. The inner tubular member may be knit from wire or from a combination of wire and glass fiber yarn, the latter providing some thermal insulative protection. The metal surfaced member may be foil or some other metal covered composite or laminate material sufficiently thin and pliable so as to be deformable by the inner member.

Abstract: An exhaust hose for an internal combustion engine is encase in a screen sleeve. The hose has a metal tube on the inside which can withstand the temperatures of the internal combustion exhaust fumes. The metal tube has ribs which enable it to be bent without kinking, but also provides significant strength to the hose. A thermal insulation layer is placed around the metal tube. The thermal insulation layer may include a gauze wrapping, allowing the inner portion of the thermal insulation layer to breath. The screen sleeve provides an outer layer for the exhaust hose. Preferably the screen sleeve is slightly larger in diameter than the thermally insulated metal tube, such that the screen sleeve fits loosely.

Abstract: A lightweight hose assembly of the type adapted for carrying fuels and other corrosive fluids. The assembly (10, 110, 210) includes a tubular member (11, 111, 211) and coupling members (20). The tubular member (11, 111, 211) includes an inner liner (12, 112, 212) of a fluorocarbon polymer. The assembly (10, 110, 210) further includes an outer layer (14, 114, 214) of closed cell fluorocarbon polymer foam. A conductive strip (16, 116, 216) is formed on the inner liner (12, 112, 212) for dissipating electrical charges accumulated in the inner liner (12, 112, 212). A fabric braided layer (118, 218) may be disposed about the exterior of the inner liner (112) or the outer foam layer (214) respectively for adding strength to the assembly (10).

Abstract: Thermally insulating pipe lagging comprising a tube of compact and flexible elastomer type material designed to come into contact with the pipe to be insulated and shaped on its inside surface to have a helical groove which provides between its adjacent turns a coil filled with air or gas when the lagging is put into place so as to surround said pipe.

Abstract: An insulated flexible air duct comprises a flexible cylindrical core; a layer of fibrous insulation blanket surrounding the flexible core and comprising a strip of fibrous blanket helically wrapped about the flexible core with lateral portions of successive convolutions of the insulation strip overlapping so that the air duct can be flexed without forming a gap between the successive convolutions of the insulation strip; and a vapor barrier jacket comprising a strip of plastic jacket film helically wrapped about the layer of fibrous insulation. The insulated, flexible air duct is formed in one continuous operation. As the flexible core is formed it is rotated about its longitudinal axis. The rotating core is fed in an axial direction through an insulation wrapping station and a vapor barrier jacket wrapping station where the fibrous insulation strip is wrapped about the core and the vapor barrier strip is helically wrapped about the insulation to form the air duct.

Abstract: Flexible cylindrical tube for conducting air or other gases, of use in particular in the automobile industry where its purpose is to, among other things, conduct air to internal combustion engines, and comprising at least one flexible cylindrical covering (1, 3) made of a material considered to be soft and noise-absorbent, characterized by a support-tape (2) provided with apertures (2A ) against which the covering (1, 3) is placed.

Abstract: A device or apparatus to insulate intravenous administration tubing is disclosed. The insulation device consists of a long tubular-like structure which consists of two concentric channels, an inner channel and an outer channel. The inner channel accepts and encloses the actual tubing in which warm fluid flows. Three key functions are achieved with this device. One key function of the insulation device is to maintain the inner channel centered within the outer channel; this provides for maximum insulation efficiency/properties with the minimum of separating space. Another equally key function is to provide for transparency; the more transparent the insulation device the better the ability of the user to see the quality of the warm fluid flowing within, i.e. detect air bubbles. Another key function is to provide for ease of set-up and reusability. All components are to be made of clear, flexible, light-weight materials to permit insulation and visualization of I.V. fluids and air bubbles.

Abstract: The design and construction of past exhaust port liners with heat insulation capabilities have had to become more simple in order to reduce costs. However, less costly exhaust port liners may have inferior heat insulation capabilities. The present invention overcomes this and other problems with a means for encapsulating an insulating layer of material. The encapsulating means is composed of fiberglass cloth with the ability to withstand high temperatures. A blanket is formed when the fiberglass cloth encapsulates the insulating layer. The blanket is stitched in a quilted pattern to form a plurality of individual pockets. The blanket is wrapped around a ceramic body of a port liner. The quilted stitching pattern, due to separating the insulating layer into the plurality of individual pockets, protects the pockets individually. If damage should occur to one of the plurality of pockets, the insulating layer would remain intact within the remaining plurality of pockets.

Abstract: The invention relates to a method for laying a pipe-line, wherein pipes are welded to each other along a ring weld and wherein the ring weld is covered with a mastic ring.In the known method of this type the mastic of asphalt bitumen is melted and cast into a mould arranged round the ring weld.Working with a hot substance (180.degree. C.) is dangerous. The vapours from melted asphalt bitumen create an unpleasant and unhealthy work climate. The quality of asphalt bitumen deteriorates the more melted it becomes.The invention has for its object to provide a method wherein the above stated and/or other drawbacks occur either at least to a lesser extent or not at all. To this end the method according to the invention has the feature that the mastic is arranged substantially in plastic condition around the ring weld.

Abstract: A fire retarding heating and cooling duct to impede the progress of fires in buildings and houses. The fire retarding duct is comprised of a duct core covered with a heat meltable plastic material that will melt at temperatures in the range of 180.degree. F. and above. The duct core is preferably constructed in short sections of about six feet for connection between heating and cooling, and building inlet and outlet plenums. The heat meltable plastic duct covering melts almost immediately when a building fire enters a plenum preventing the spread of a fire throughout the duct system.

Abstract: The design and construction of past port liners with heat insulation capabilities have had to become more simple in order to reduce costs. However, less costly exhaust port liners may have inferior heat insulation capabilities. Additionally, port liners cast into a cylinder head of an internal combustion diesel engine must endure the stresses associated with the high casting temperatures of cast iron. The present invention overcomes these and other problems by utilizing a ceramic port liner containing a low temperature softening phase. The ceramic port liner is surrounded by a blanket formed when a fiberglass cloth encapsulates an insulating layer of material. The ceramic port liner and surrounding blanket are cast within a cylinder head. During the casting process, the ceramic port liner remains in a softened state. As the casting cools, the ceramic port liner returns to a regular solid state at a progressively sufficient thermal rate to protect it from damage.

Abstract: A duct for transporting air within an air handling system. The inventive device includes a plurality of panels coupled together to form a hollow duct. The panels are sealed along interior surfaces thereof by coextensive foil webs. The panels can be formed from a single blank and subsequently folded into an operative orientation for use in a heating and air conditioning installation.

Abstract: A getter material is provided which efficiently sorbs gases at low pressures but, when a system failure causes high pressures of hydrogen and oxygen (air) to be present, does not increase its temperature to that which would cause explosive ignition of the hydrogen-oxygen (air) mixture.

Abstract: A reusable insulation jacket for tubing elbow and valve connectors carrying extreme hot and cold materials comprises a polygonal fiberglass mat. The mat is stitched to form a cavity as to completely receive the tubing connector and to overlap itself whereat complimentary releasable fastening hook and loop material securely hold the mat in place to insulate the tubing connector from fire and to prevent an individual from otherwise being burned from contacting the connector.

Abstract: A reusable insulation jacket for splicing and termination of industrial tubing carrying extreme hot and cold materials comprises a rectangular fiberglass mat. The mat is of a width as to completely wrap the tubing and overlap itself whereat complimentary releasable fastening means securely hold the mat in place to insulate the tubing from fire and to prevent an individual from otherwise being burned from contacting the tubing. Optionally, a frustum-shaped reducing adaptor may be utilized when the insulation jacket is used in combination with preinsulated tubing.

Abstract: A rigid, glass fiber airduct for conveying an airstream has an interior surface, adapted to be in contact with the airstream, which is coated with a polymeric coating comprising an organic or inorganic biocide. The polymeric coating has a dry solids content between 10 and 20 grams per square foot of duct board surface and retains its abrasion strength and puncture resistance whereby the interior surface of the airduct can be cleaned by conventional industrial or commercial cleaning procedures while in service without exposing glass fibers to the airstream.

Abstract: An elongated plastic support member for making various architectural frames is formed of an extruded hollow plastic element and a reinforcing element disposed inside and coextensive with the plastic element. The reinforcing element is sized and shaped to form an interference fit with an inner wall of the plastic element and may be made of metal.

Abstract: A modular wall liner panel for use in a duct system for containing a flow of gases comprises a central wall segment having a polygonal shape forming an inside wall surface of the, duct and having angularly intersecting pairs of parallel edges. Integral mounting edge flanges are provided adjacent the respective edge of the central wall segment adapted to be detachably securable in place on a supporting grid structure of the duct system wall structure. The grid structure has a plurality of elongated first and second parallel support elements extending transversely to one another and fasteners are provided for detachably securing at least one pair of mounting edge flanges of each duct liner panel to a pair of adjacent parallel support elements of the grid structure.

Abstract: An insulation system for a cold pipe or container includes an inner water-absorbing layer, an intermediate heat-insulating layer defining a slot therethrough, and an outer water-absorbing layer, the inner and outer layers being in contact through the slot.

Abstract: Provided in an insulated assembly including a component covered by a reusable, reinforced insulation blanket, and jacketing covering the insulation blanket. The reinforced insulation blanket includes a plurality of jacket support assemblies that are securely attached to an insulation blanket. The jacket support assemblies support the jacketing so that the insulation blanket is not crushed when weight or other loads are applied to the jacketing. A jacket support assembly includes a component engaging plate disposed between the insulation blanket and the component to be insulated, a jacket engaging plate disposed between the insulation blanket and the jacketing, and a support stud. The support stud passes through the insulation blanket and rigidly connects the component engaging plate to the jacket engaging plate such that the jacket support assembly is securely attached to the insulation blanket. The jacket support assemblies are strategically placed to protect the insulation blanket.

Abstract: Roll designs for roller hearth furnaces operating at temperatures ranging from under 1200.degree. C. to substantially higher are disclosed. A rotary mounted main roll body may be provided with a plurality of spaced tires for contacting and transporting a charge carried by the roll. An internal coolant circulation system is provided within the main roll body. Insulation may be provided around the main roll body.

Abstract: By providing a multi-layered, self-sealing, adhesive system constructed for being laminated directly to a thermoplastic or elastomeric elongated tube, a highly effective, easily employed, closure system for securely sealing the elongated slit of elongated, thermoplastic or elastomeric tubes is obtained. In the preferred embodiment, the multi-layered, self-adhering, sealing system of this invention is manufactured in a substantially continuous elongated strip and incorporates a laminating film layer and a film support layer. In this way, secure, integral bonded affixation of the sealing system to the elongated tube is attained in a unique cost-effective, highly efficient manufacturing process. In addition, by integrally affixing the laminating film layer and the film support layer along both sides of the elongated slit of the tube, an adhesive engaging surface is provided for assuring secure, leak-free sealed closure of the elongated tube.

Abstract: A hose designed to facilitate supply and return of cryogenic fluid such as a liquefied gas includes supply and return conduits wrapped in multiple layers of reflective metallized material, which is surrounded by a layer of foam material which is, in turn, surrounded by a protective outer layer such as, for example, a woven cover. The conduits are made of a material such as polytetrafluoroethylene. The inventive hose is lightweight and maintains flexibility for extended periods of time with cryogenic fluid flowing through the conduits.

Abstract: This invention is directed to a composite pipe comprising three layers adjacent to one another. It consists of a thin-walled metallic inner liner, a thermally insulating ceramic material layer, and an outer casing of a non-metallic material. The composite pipe is useful in automotive applications such as exhaust gas systems to reduce the thermal energy transfer from the exhaust pipe along the length of the pipe, reduce sound transmission, hinder corrosion and reduce weight.