Abstract: In an air duct assembly, the air duct is integrally provided with a harness sheath which is formed with a laterally openable, longitudinal slit adapted to permit the harness to be inserted in the sheath and retained therein. The harness sheath may be molded, integrally with the air duct, of a polyethylene resin by blow-molding, for example. The air duct is a defroster duct which extends transversely across the passenger comparment of an automobile.

Abstract: A safety guide for kelly spinner hoses in drilling rigs and a plurality of said safety guides in combination with kelly hoses and a rotary hose. Each safety guide comprises a pair of opposed rings, each adapted to receive and guide a kelly spinner hose, and a device for securing the rings to a rotary hose substantially in a plane perpendicular to the axis of the rotary hose. Advantageously, each ring has a rigid integral loop member and the securing device comprises a flexible band passing through said loop members. It is preferred to secure the band to the rotary hose with a buckle. In the combination, a plurality of the safety guides are spaced along the length of the rotary hose, preferably substantially equidistant.

Abstract: Intumescent fire protective sheaths useful for the protection of electric cables and conduits from open flame damage and methods for making such sheaths. The sheath comprises sheets of substantially inorganic intumescent material capable of arrangement around the cable or the conduit to form a protective layer. The layer is restrained to expand only in the general direction of the electrical cables or conduits upon exposure to open flames. In the unexpanded state, the sheaths dissipate cable-generated heat due to their higher value of thermal conductivity, their relative thinness and their fin-like shape.

Abstract: In the cathodic protection of tubular goods transporting fluids above 100.degree. F. with aluminum or zinc anodes, the output efficiency of the anode is increased by thermally insulating the anode from the tubular goods on which the anode is placed.

Abstract: An insert for placement between concentric cylindrical filter elements comprises in a one-piece construction a tubular cylindrical body and pairs of parallel slits in the body each forming therebetween a strip of material connected to the remainder of the body at the ends of the strip. The strips are bowed inwardly away from the remainder of the body between their ends to form protrusions extending transversely from the remainder of the body.

Abstract: A formable hose with a reformable wire embedded solely in a thicker portion of the hose cover, the reformable wire oriented longitudinally of the hose.

Abstract: A collapse resistant hose is described which may be selectively deformed to a desired shape. It includes the usual elongated polymeric body, including an internal passageway in which is positioned a spring insert reinforcement. An axially extending rod means is positioned adjacent the spring to which it is intimately attached, permitting the hose to be deformed to a desired shape-retaining configuration by bending the rod beyond its yield point.

Abstract: An insulated pipe enclosure for use above ground includes opposed, internally insulated, generally C-shaped, thin-walled base and cover sections, which are interconnected end-to-end by overlapping one section with the next, each cover and base being interconnected by screws in flanges extending outwardly from each side of the cover and base. The pipes in the enclosure rest on vertically extending supports, which are embedded in the insulation of the base sections.

Abstract: Various means for providing rigidity to the flexible hose of a water jet iment probe that is used to determine thickness and types of underlying sediment beneath land or seafloor is disclosed. A series of interconnecting rods or pipe sections are used to stiffen a length of flexible hose to a desired probe depth to enable a single operator to bore a hole of indefinite depth without assistance.

Abstract: The present invention relates to a bending strain relief device with adjustable stiffness to be used in connection with cables or pipes. The stiffness of the device is made adjustable by having an expandable body arranged between the cable or pipe and a stiffening rod arrangement. When inflated, the expandable body causes increased friction between the stiffening rod layers and the relief may be locked in any desired position.

Abstract: Interior by-pass for underground gas service line is installed from building basement without need for excavation, and has a tightenable adapter attached on each end of the by-pass tubing to connect and seal the tubing to the interior periphery of the service line. Each adapter provides a pair of spaced-apart expanded sealing gaskets between the tubing and the service line, and a gas-leakage passage extending from the interior of the tubular adapter to the exterior spacing between the adapter gasket pair. Temporary gas-tight plugs are provided at respective locations between each leakage passage and the adjacent end of the by-pass tubing, and compressed natural gas test-pressure is applied within the tubing. Via both of the referred to leakage passages, the test pressure is exerted against all of the gasket seals to confirm gas-tightness thereof.

Abstract: A spine for flexible aquarium air hoses includes a plurality of rib members, each having at least three radially disposed ribs, and each adjacent pair of rib members are connected at the centers by a substantially flexible connecting member. The spine is inserted inside the flexible hose at areas where the hose is to be bent, thereby preventing kinking of the hose.

Abstract: A recoverable sleeve assembly is disclosed having an inner elastomeric tube and an outer rigid tube surrounding and secured to the inner tube holding the inner tube in outwardly stretched condition and wherein the outer tube extends axially beyond and covering at least one end of the inner tube and secured to that end of the inner tube. The end of the outer tube extending beyond the end of the inner tube has a thickness equal to the total thickness of the inner tube plus the thickness of that portion of the outer tube that surrounds the inner tube. The outer tube is a rigid thermosetting adhesive polyurethane comprising a polyester polyol reacted with an isocyanate whereby the outer tube is sufficiently adhesive to hold the inner tube in outwardly stretched condition but will peel from the inner tube upon impact of force or application of heat without need for a solvent.

Abstract: A pipe for transporting crude oil comprises a layer of polymeric material for containing oil within the bore of the pipe, the polymeric material being surrounded and supported by a reinforcement structure comprising high tensile reinforcement elements which are protected from corrosion by gases passing from the polymeric layer through the reinforcement structure. The reinforcement element may be provided with a protective sheath, for example of low permeability material or a material which possesses electrolytic action, or the reinforcement element may be embedded in a matrix of high permeability material such that a preferential path is provided for the passage of gases through the reinforcement structure.

Abstract: Disclosed is a closure member for insulating, sealing, waterproofing and otherwise protecting an object from the elements. The closure member is of integral, one-piece construction, is of heat-shrinkable material, has a main body for enveloping the object and easily hand-assembled hooks, formed from material-sandwiched, angled and articulated inserts, interfoldable to define a joint and form thereby an enveloping tubular member. The hooks have on their ends small projections defining detents that are mechanically imbeddable for positive joint closure and seal, while affording a wide range of alignment in the interfolded and sandwiched assembly of the hook.

Abstract: A cementitious coating is applied to a thin smooth, corrosion-protective coating of a pipe to protect the corrosion-protective coating against physical damage and hostile environments. The cementitious coating adheres to the corrosion-protective coating, is typically between 0.5 and 5.0 millimeters in thickness, and contains a cementitious material such as portland cement, a polymeric material such as an acrylic polymer, and may also contain chopped fibres such as glass fibres and a filler material such as silica sand. The cementitious coating has sufficient conductivity to permit a cathodic protection current to flow therethrough. The cementitious coating may also be applied to the corrosion protective coating of the metal substrates. Polymer bonded coatings may alternatively be so applied, to protect the corrosion protective coating.

Abstract: A filament wound structural vessel includes a cylindrical wall formed of a cured thermosetting resin reinforced by fibrous material. An opening in the wall is reinforced by a series of reinforcement bands formed by filament windings that encircle the wall and run adjacent the opening.

Abstract: A device for providing a protective coating for the inside of pipes, said device being remotely actuated from outside said pipes. Specifically, the device comprises a high modulus engineering plastic delivery means, a corrosion resistant liner means, and a bonding means, said device expanding upon application of heat toward the inner wall of the pipe to cause the bonding means to flow progressively between the liner means and the inside of the pipe to thereby preclude air entrapment and to bond said liner means to the inside of the pipe.

Abstract: A heat-insulated hose for liquefied gases, in particular, liquefied natural gas, comprising an inner hose (5) resistant to cryogenic temperatures, a plurality of successive layers (7A, 7B, 7C) of heat-insulating material, for example, polystyrene foam, arranged around the inner hose (5) and an outer protective sheath (18) arranged around the outermost layer of heat-insulating material, wherein each layer (7A, 7B, 7C) comprises a helically wound strip (6A, 6B, 6C) of fibre material holding together a mosaic of blocks of the heat-insulating material.

Abstract: A longitudinally divided cable sleeve which is composed of a shrinkable sleeve member of a shrinkable material having a bead on each edge for engagement with a sealing bar to form a sealing system characterized by each of the beads having a non-shrinkable longitudinally extending strengthening element embedded therein and the sealing bar having a pair of side elements interconnected by a central web, said side elements projecting from the central web to form an undercut groove on each side of said web so that the sealing bar is a cross-sectional configuration of a pair of C-shaped profiles facing in opposite directions and each groove receives one bead of the sleeve member to close said cable sleeve. The sealing bar is preferably made of a material having a good heat conduction property to improve the heating of the inner sealing zones during a shrinking process. If desired, a coating of a fusible adhesive can be applied in the area of the sealing zones to increase the sealing effect.

Abstract: Concrete pipe including a hollow tube of concrete with a grid of reinforcing bars embedded therein. A plurality of inserts are embedded in the concrete pipe in between the bars of the grid and have passageways therethrough to form slots between the interior of the concrete pipe and the exterior thereof at predetermined locations to form slotted concrete pipe.

Abstract: A flexible tubular assembly having an outer tube and located therein an inner tube. One end of the inner tube is in communication with the locale of the nasal passages of a patient. The other end of the inner tube is provided with the safety connector at an end portion of the outer tube externally with respect to the outside of the connector through a wall thereof. The external connection includes a tubular nipple that is at an angle with respect to the connector and is the safety connector feature of the present invention.

Abstract: A pipe rupture restraint and shield diffuser assembly is installed on a pipe at a location where the pipe is subject or postulated to rupture and includes a cylindrical casing surrounding the pipe and having holes therethrough and a plurality of diffuser rings disposed in longitudinally spaced relation in an annular space between the casing and the pipe to form flow obstructions along the annular space whereby upon rupture of the pipe jet flow is diffused by flow past the diffuser rings and through the holes in the casing. The assembly can be attached directly around the pipe or can be independently supported.

Abstract: A flexible conduit with a quadrangular hollow casing-shaped wire in the side wall of the conduit and extending the length of the conduit. The casing-shaped wire has at one side bent unjoined and overlapping extremities of the metal strip from which the wire is formed and is capable of receiving a hydraulic or electrical control line therein.

Abstract: A method and device for providing a protective coating for the inside of pipes, said method utilizing a device which is remotely actuated from outside said pipes. Specifically, the device comprises a memory metal delivery member, a corrosion resistant liner member, and a bonding member, said device expanding upon application of heat toward the inner wall of the pipe to cause the bonding member to flow progressively between the liner member and the inside of the pipe to thereby preclude air entrapment and to bond said liner member to the inside of the pipe.

Abstract: A hydraulic safety hose apparatus is disclosed, which includes a pressurized fluid source for producing hydraulic fluid pressure in the apparatus, a hydraulic safety hose, and a hydraulic pump. The hydraulic safety hose is composed of inner and outer hoses with an annular passage between them to receive pressurized fluid in the event of rupture of the primary inner hose. A series of bleed holes in the outer hose allows the escaping fluid to harmlessly dissipate under low pressure without endangering the operator and other persons in the vicinity of the hydraulic system.

Abstract: A recoverable tubular article comprising an elastomeric sleeve held in an expanded or extended condition and capable of recovering to its unexpanded condition of smaller diameter upon the removal of an outer restraint, an outer restraint, essentially tubular in configuration, bonded to said elastomeric sleeve, said restraint and said bond between the sleeve and the restraint being sufficiently strong to retain the elastomeric sleeve in its expanded condition under ordinary conditions of storage and said restraint being capable of being segmented and peeled from said elastomeric sleeve to permit said sleeve to recover to its original state.

Abstract: A device for controlling the diameter of tubular casing during filling thereof, the device consisting of an annular tapered hollow body having an external diameter smaller than the internal diameter of the deshirred tubular casing whereby during filling and deshirring of the casing, the casing is not expanded beyond its original diameter. The device consists of a hollow body of generally annular configuration, the hollow body having a central opening to receive a stuffing tube and resilient web-like elements on the internal diameter about the opening to engage the tube.

Abstract: A contour formable hose with a reformable insert disposed in the hose duct, the insert with at least two spaced ring means that engage an internal annular portion of the hose interior wall so that a ring means is located near each end portion of the hose. A rod bias means is interpositioned between and attached to the ring means and the rod bias means is capable of being yielded to a new bias shape.

Abstract: A hose construction and apparatus for and method of making such hose construction are provided wherein the hose construction comprises a corrugated outer tube made of polymeric material and having alternating projections and recesses with the recesses having inwardly facing convex surfaces and an inner tube made primarily of polymeric material and having smooth inside and outside surfaces with the outside surface being bonded against the convex surfaces and wherein the inner tube has at least one longitudinally extending polymeric portion comprising same which has electrically conductive particles embedded therein in which the polymeric portion serves as a matrix for the particles and with the polymeric portion being heat fused to the convex surfaces.

Abstract: A flexible pipe includes an elastic pipe body in corrugated form and including alternate large and small radius portions. A ring is mounted within one of the large diameter portions of the interior of the pipe body. An elongated flexible and deformable shaping member is secured to the ring and extends throughout the interior length of the tube body.

Abstract: A synthetic resin, fiberglass reinforced tubular member having an integrally attached metallic element is disclosed, along with a pressure gelation method of fabricating the same. The tubular member is used in making electrical hot line tools, and to this end the metallic element is composited to the tube body without use of metallic fasteners or the like. In practice, a preimpregnated fiberglass material is wrapped about a mandrel to present a predetermined number of layers thereof, whereupon the metallic attachment is temporarily affixed to the fiberglass layer, preferably by placing strips of the wrapped material against the edges of the attachment and in bridging relationship to the wrapping. The fiberglass material is then cured to embed the attachment in the sidewall and yield a fused, void-free monolithic structure.

Abstract: Tubular members of lightly alloyed weldable steel are utilized as a stiffening member for pipelines to prevent buckling and the spread of cracks in pipelines laid off the coast, either under or above water. The tubular member (R, R1) is constructed of centrifugally cast steel and is adapted to be connected to another similar member or to a standard pipe (T) of the pipeline. The member has a substantially increased thickness (2, 15) and is subjected to thermal treatment in order to obtain a homogeneous ferritic structure.

Abstract: A porous polytetrafluoroethylene (PTFE) article which is made up of a number of smaller articles with a microstructure of nodes interconnected by fibrils, these articles having been joined to one another such that their microstructure is virtually unaltered across the join. A process for producing such a PTFE article by closely abutting small-shaped PTFE segments and applying a force perpendicular to the seam while heating to a temperature above the crystalline melt point of the segments.

Abstract: This invention constitutes an improvement in a liquid transfer connector hose for the purpose of facilitating an unencumbered transfer of liquids between two points, such as a liquid conductor means of either a permanent or temporary nature, under conditions of below freezing temperature weather conditions, wherein this objective can be attained by having a new composition of components incorporated into the above Flexible Antifreeze Heatconductor Liquid Transfer Connector Hose which components essentially would be primary liquid transfer hose, a suitable heatsource, liquid antifreeze heatconductor hoses, pressure regulator, thermostat, pressure relief valve, pump, reservoir, suitable insulation layer and suitable connector fittings furtherwherein such aforementioned components would be assembled in such a way, as will become evident in the specification, as to make availble a liquid transfer connector hose which between insulation layer and the primary liquid conducting hose has installed a closed loop overl

Abstract: The device comprises a flexible, expandable hose which has a coupling at one end for mating with the toner hopper of either of a photocopy machine or a computer print-out machine, the other end of the hose having a coupling for mating with the neck of the toner canister so that toner may be loaded from the canister into the hose from outside of the machine which uses the toner, the toner canister is then removed from attachment to the hose, the hose is capped and the hose is compressed, whereby the toner is loaded into the machine with minimal spillage.

Abstract: A binding device for hoses floating on the water surface, particularly, for a plurality of hoses arranged in parallel and floating on the water surface and connecting adjacent two hose lines by chains, comprising a resilient cylindrical cushioning body having a center bore surrounding the chain and including a buoyant member and reinforcing element embedded therein.

Abstract: A flexible pipe section for the transportation of a mixture of water and solid material, such as pieces of stone, rock, metal and the like objects having sharp points and/or edges and/or projections offering a high resistance to wear and damage in that the wall of the pipe section lying between couplings at the ends of said pipe section, in order to lengthen its life, comprises a row of abrasion-resisting annular members spaced from each other and extending substantially in between the inner and outer surfaces of the wall of the pipe section and inclined at a sharp angle with the longitudinal axis of said pipe section, a tubular cover of elastic material on the pipe section including said wall, said cover having at least one insert serving to prevent as much as possible tension occurring in the layers of rubber or elastic material connecting said members.

Abstract: A transport hose floating on the sea surface and transporting petroleum or like fluid from a tanker to an oil reservoir installation on land or vice versa, comprising a leak detector operative in response to the presence of a leak fluid to indicate that portion of the transport hose at which a leak failure occurs.

Abstract: The surgical drain tube of the present invention is comprised of a tubular member of a flexible pliable material. The tubular member has a oval exterior surface and a collapsible wall which defines a lumen which is normally of a substantially oval cross section. A tongue member is integrally formed with the inner surface of the top wall portion of the tubular member and extends the longitudinal length of the lumen. Oppositely deposed from the tongue member is a groove member which is formed integrally with the inner surface of the bottom wall portion of the tubular member and also extends the length of the passageway.

Abstract: An abrasion resistant bend or elbow like construction for small pipelines of relatively small, i.e., 2 to 8 inch, inside diameter is formed of soft, ductile metal, normally mild steel. The outside bend portion most subject to abrasive attack is prefitted prior to use with a frame and cover arrangement which receives, maintains and provides a dustproof and pressure tight cover over a plurality of ceramic wear liners which receive the abrasive attack after the metal forming the outside bend portion is worn away in use.

Abstract: A drip irrigation pipe for use aboveground having conical apertures in the wall of the pipe at spacings corresponding to the space between the plants to be irrigated. The apertures diverge from the inside to the outside of the wall, with a center line making an angle of between 14.degree. to 30.degree. to the axis of the pipe and oriented in the direction of the water flow. Water is supplied at drip irrigation pressure of 10-35 p.s.i.

Abstract: Pipes or pipe fittings that are fire resistant and electrically conducting are formed by filament winding of a fire resistant, electrically conducting polymeric composition that includes 2 to 8% by weight of electrically conducting carbon black uniformly dispersed throughout the composition.

Abstract: Pipeline restraining device including a loop-shaped holding member surrounding a pipe of the pipeline and being of such dimensions as to be plastically deformed under the action of the force with which the pipe is held, which includes a further holding member disposed substantially parallel to the direction of application of the holding force and being longer than the plastically deformable holding member, the further holding member being of such dimension as to be elastically deformed under the action of the holding force.

Abstract: In an ocean thermal energy conversion facility, a cold water riser pipe is releasably supported at its upper end by the hull of the floating facility. The pipe is substantially vertical and has its lower end far below the hull above the ocean floor. The pipe is defined essentially entirely of a material which has a modulus of elasticity substantially less than that of steel, e.g., high density polyethylene, so that the pipe is flexible and compliant to rather than resistant to applied bending moments. The position of the lower end of the pipe relative to the hull is stabilized by a weight suspended below the lower end of the pipe on a flexible line. The pipe, apart from the weight, is positively buoyant.

Abstract: The invention relates to a hose of rubber or rubber-like elastic material adapted to convey pressurized medium and provided with a number of insulated, electrically conductive stranded metal wires embedded in the outer layer of the hose and contributing to its mechanical strength. Use of such a hose is desirable to transmit control signals or other electrical current from one end of the hose to the other by way of the stranded metal wires without obstructing the flexibility of the hose. An end connector means having a metal connector fitting, a shrunk-on sleeve in contact with the metal connector fitting, and a protective cover around the hose itself provides a means for joining the conducting hose to another flexible hose or suitable connecting member.

Abstract: This invention relates to crack arrestors for arresting longitudinal propagation of a crack in pipelines carrying natural gas or highly volatile normally gaseous liquids or combinations thereof, and to methods for applying said crack arrestor to pipelines.

Abstract: A swivel assembly for interconnecting a pair of relatively displaceable conduits comprises a pair of outer swivel fittings each connected via a respective outer pipe to a respective one of the conduits, and a pair of inner pipes each connected between the other side of each of the outer swivels and a respective side of a single inner swivel. The outer side of each of the outer swivels is clamped fixedly on the respective conduit so that there is no strain in the outer pipe between each of the outer swivels and the respective conduit. To this end each such outer pipe may include a U-shaped section lying in a plane including the swivel axis of the respective swivel fitting and perpendicular to the axis of the respective conduit.

Abstract: A fibrous reinforced flexible hose for conveying fluids such as paint under pressure is provided with a composite core tube preferably simultaneously co-extruded from two or more synthetic polymers which are in intimate contact with each other. The inner layer of the composite core tube is nylon or other chemical resistant polymer which may or may not be cross-linked and the outer layer is a cross-linked electrically semi-conductive synthetic polymer layer which serves as a ground for static electricity. In the process of making the hose, the semi-conductive layer is preferably cross-linked by irradiation as a means of improving its higher temperature performance capabilities and to minimize changes in the electrical resistance of the semi-conductive layer that might arise from dynamic use of the hose.

Abstract: A hose that will withstand pressure and vacuum as well as resist kinking or collapsing in which the wall structure includes at least two radially spaced layers of monofilaments of textile material with a layer of elastomeric material separating the layers. Also at least one additional layer of a fabric of aramid fiber is included in the wall as additional reinforcement. Construction is of relative lightweight and may be readily adapted to a floating hose construction.