Abstract: A line network for at least one of hydraulic and pneumatic media with the line network being adapted for use in motor vehicles such as buses as well as in aircraft, machines, or buildings. The line network is formed by extruded sections or members instead of conventional individual lines with each or the sections of members including a plurality of tubular enclosed sections which define the lines as well as chambers or reservoirs for accommodating pneumatic and hydraulic media or the like. Connection to the lines and/or chambers can be accomplished throughout the entire length of the extruded members or sections. The extruded members or sections may be formed from aluminum, aluminum alloys, and, in certain applications, of a plastic material.

Abstract: An improved flexible hose having particular utility for a fume extracting welding gun is described. The hose has a smooth outer surface, an inner cylindrical compartment which receives the power cable and welding wire and a plurality of radial webs which define compartments for extracting fumes and for conveying shielding gas to the welding site.

Abstract: A non-pneumatic insert tube for a tire adapted to be mounted upon a circular rim. The insert tube is an elongated resilient plastic cylinder having a thin wall defining a continuous bore which extends throughout the entire tube length. A sequence of spaced partial cuts extends through the thin wall of the tube with the sequence of partial cuts being symmetrically centered about the outer periphery of the tube when formed into a single coil hoop for insertion into a tire and with an uncut portion of the tube being symmetrically centered about the inner periphery of the tube which is to be seated adjacent the rim. In certain species a reinforcing web, having a single web or a web of two or more intersecting cross legs, is disposed within and extends across the bore of the tube from sidewall to sidewall and is integrally joined to the opposite sidewalls. The single web and all cross legs are usually placed in tension in response to vertically applied loads.

Abstract: A bent honeycomb pipe includes an outer pipe section bent at a predetermined curvature, a bent central pipe section coaxial with the outer pipe section and a bent honeycomb-shaped section interposed between the outer and central pipe-sections, all three sections being simultaneously coextruded to form a single-piece construction.

Abstract: Tube of thermoplastic material, comprising longitudinal channels of rounded cross section and having such wall stresses that, after axially cutting the tube, the edge parts beside the cut edges overlap each other for less than 5% of the outer circumference of the tube.

Abstract: The invention relates to a pipe part with a socket being provided with longitudinally extending channels. The channels extend into the wall of the socket. The socket engages a J-shaped retaining ring which forms with the socket a recess for retaining the flange of a seal that includes a sealing sleeve. The retaining ring adheres to the outer side of the socket by an adhesive.

Abstract: A plastic pipe comprises an inner wall and an outer wall, being integral with longitudinal partitions betweem them and bounding longitudinally extending channels and a circumferential, helically or non-helically extending groove, which groove has been formed by closing the channels by pressing channel wall parts onto each other. A retaining ring may be snapped into an external groove.

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 marker sleeve (1, 1A, 15, 20, 30, 40, 50 or 60) having an outer wall (2) defining a tubular body and at least one inner web (3, 4, 16, 21-23, 31-34, 42, 52 or 62) extending longitudinally of the tubular body. An inner web is spaced from its overlying outer wall portion along a longitudinally extending aperture (5, 18, 25, 35, 41, 51 or 61). The marker sleeve is to be positioned about an article which extends through its tubular body.

Abstract: A steel tubing and more particularly a composite dual tubing which can be suitably used for an exhaust pipe capable of effectively reducing the radiated noise from the exhaust pipe of automobiles. A metallic dual tubing of the present invention comprises: lugs (20a); lugs (20a) and heat-resistant filler material (24); or, the spacer member (16) and the heat-resistant filler member (17).

Abstract: A heat transfer apparatus (13) adapted to releasably secure an elongate heating or cooling means to a pipe. Apparatus (13) has a flexible base member (3) that adapts to the radius of curvature of the outer circumference of the pipe and preferrably has at least one protuberance (8) in its wall. One or two resilient side walls (4) extend over the side of base member (3) that faces away from the pipe to provide a longitudinal cavity for containing the heating or cooling means. An entrance-way (6) is provided for inserting or removing the heating source into or from the cavity. Side walls (4) are shaped such that they press uniformly against the heating or cooling means and urge said means against base member (3). Means (11) are provided for securing apparatus (13) to the pipe so the heating or cooling means can be removed from or inserted into the cavity without having to release apparatus (13) from the pipe.

Abstract: A support strip (FIG. 2) of plastic material with U-shaped cross-section and for supporting conduits, cables etc. has a substantially plane bottom (2) and side walls (3), which support strip (1) in its bottom surface close to the longitudinal edges of the support strip has a groove (5) extending along the entire length of the support strip with opposed grip edges (6,7). The free outer edge of each side wall (3) is formed along its entire length with a substantially cylindric bead (8), the diameter of which is slightly smaller than the width of the groove (5) and greater than the distance between the grip edges. Both beads (8) are located at the same distance from the bottom (2) and in a plane (x) extending perpendicularly to the bottom and in the central longitudinal line of the respective groove.

Abstract: Plastic pipes comprising an inner and outer wall being interconnected by lengthwise extending connecting partitions, forming channels, the ends of the channels being each separately sealed by sealingly pressing the end walls of a channel to each other after these walls have been heated to a temperature surpassing the plasticizing temperature.

Abstract: In the openings at the side wall of an infeed or inflow channel there are inserted outlet or discharge elements having an oval cross-section which continuously tapers in the flow direction. The inlet-side portion of the outlet elements, protruding into the interior of the infeed channel, possesses an outwardly drawn or flexed end portion or section which terminates in spaced relation from the channel side wall and forms therewith a catch trough. Within this trough there is entrapped water which is deposited at the inner surface or wall of the infeed channel and which flows downwardly along the channel side wall. At the outlet side of each outlet or discharge element there is arranged a further catch trough which extends at the inner surface of the outlet side or opening along the circumference. This inwardly open catch trough is formed by an end portion or section of the outlet element which is flexed or bent back towards the inside.

Abstract: Disclosed are heat recoverable connectors for use as a protective covering about a plurality of joined articles such as wire splices or tubing junctures. The connectors are open-ended and feature at least one internal wall extending for at least a portion of the distance along the length of the connector to provide a plurality of open-ended channels within the connector for respectively containing one or more of the plurality of joined articles so as to insure their separation during the process of shrinking the connector by heat.

Abstract: Method of making multi-port heat exchangers wherein tubular members made of metal that does not well lend itself to being extruded into a plurality of passageways may be divided into multiple passageways by dividers inserted thereinto and adhered thereto.

Abstract: A connector assembly is adapted to connect an outlet of a whirlpool system to air and water supply channels. Because the connector assembly is removably mounted to the air and water supply channels between the ends thereof, the air and water supply channels can be made from a continuous piece of tubing.

Abstract: An electrical wire bundle support assembly for maintaining separation between the individual wire bundles. The multiple wire bundle support assembly comprises a molded base member adapted for mounting to aircraft structure which contains a plurality of channels for supporting individual wire bundles. A molded spring action cover member is utilized in the wire bundle support assembly; the spring action cover member includes a plurality of foam cushion portions which extend therefrom in an indexed manner into corresponding channels in the base support member thereby resiliently restraining the plurality of wire bundles seated in the respective channels.

Abstract: Plastic pipes comprising an inner and outer wall being interconnected by lengthwise extending connecting partitions, forming channels, the ends of the channels being each separately sealed by sealingly pressing the end walls of a channel to each other after these walls have been heated to a temperature surpassing the plasticizing temperature.

Abstract: A masonry construction module is provided which possesses versatility in the formation of various types of structures. The module has corrugations on all of its side walls which interfit complementally with the corrugations of adjacent modules in a horizontal course, thus rendering the courses of modules self-aligning and interlocked. The opposite ends of the module are respectively recessed and step projected to promote self-alignment and interlocking with modules in courses above and below. Sloping end shoulder surfaces shed water and form a barrier to water, sight and sound. The modules are designed to be laid up without mortar but can be laid up with mortar if desired and core openings can accept concrete reinforced with metal or the like to integrate structures. The corrugated side surfaces also provide ideal adhesion with stucco and the like.

Abstract: A module for conducting each of a plurality of fluids from a source thereof to a desired delivery location along a wall comprises a horizontally elongated body having therein a plurality of lengthwise extending bores, one for each fluid, that are spaced apart vertically. On an upright front surface of the body there are a plurality of linear indicia, preferably V-grooves, one for each bore. Each indicium is contained in a horizontal plane that also contains the axis of its bore, so that an outlet from each bore can be formed anywhere along its length by drilling rearwardly into the bore from its indicium. The body has a uniform cross-section along its length to be suitable for extrusion, and it includes an attachment portion and portions that provide a dust seal between it and a wall to which it is attached.

Abstract: The present invention is directed to a dip tube and valve with a quick-disconnect coupling for use in combination with a collapsible bag to dispense a liquid product therefrom. The dip tube is extruded or otherwise formed from plastic or other suitable materials and includes at least one channel in the peripheral surface thereof extending along the entire length of the dip tube. As a vacuum or suction is applied to the dip tube by a pump, initially all of the air within the collapsible bag is extracted therefrom. Subsequently, the liquid product is dispensed out of the collapsible bag and the bag collapses around a portion of the dip tube which is no longer surrounded by the liquid product. Progressively, as the liquid product is removed, the bag will continue to collapse around the dip tube, and the liquid product will continue to flow through the longitudinal channel of the tube until the contents of the collapsible bag are exhausted.

Abstract: Plastics pipes comprising an inner and outer wall being interconnected by lengthwise extending connecting partitions, forming channels, the ends of the channels being each separately sealed by sealingly pressing the end walls of a channel to each other after these walls have been heated to a temperature surpassing the plasticizing temperature.

Abstract: A method and article of manufacture is herein disclosed for eliminating the need for pressurized air in a vehicular pneumatic tire. A resilient tubular insert is inserted and carried within a tire casing to simulate pneumatic conditions. The resilient material possesses a longitudinal bore which in combination with a particular range of durometers, enhances the "pneumatic" characteristics of the tire insert. Preferably, the tire insert is discontinuous and is designed to have a diameter greater than the internal diameter of the tire casing under deflated conditions.

Abstract: An energy absorption device of elastomeric material is disclosed which is particularly adapted for marine use. The device has an overall configuration resembling that of a cylinder and includes a central bore extending axially throughout its length and a plurality of additional bores extending axially throughout its length. The additional bores are symmetrically arranged around and between the inner and outer peripheral surfaces of the device.

Abstract: A continuous drip irrigation tube having a series of longitudinally extending capillary tubes formed on its wall integrally with said wall.

Abstract: An impact- and tension-resistant control line suitable for attachment to an underwater oil or gas flow line, for attachment to a downhole tubing string or for control in subsea workover operations. The control line protector includes a resilient elongated body, any number of hydraulic tubes, electrical and electronic lines within the body and at least two impact-resistant, tensional-bearing members such as wire ropes within the body. When viewed in cross-section, the wire ropes are disposed within the body so that the protected control lines lie between the two wire ropes and a planar force or impact from any direction cannot directly contact the protected control lines. Additional impact-resistant, load-bearing members can be disposed among the protected control lines to insure that a planar force cannot directly contact the protected control lines while the device is attached to a flow line.

Abstract: A whirlpool system has a pair of channels which connect sources of water and air to a plurality of outlets in a water receptacle. Each of the channels is formed in a continuous piece of tubing which is connected to the outlets by a plurality of connector assemblies removably mounted to the tubing between the ends thereof. If the tubing is made from a thermoplastic material, the tubing may be inserted into a hot liquid bath and, after the thermoplastic material becomes sufficiently soft, bent into a desired shape or configuration.

Abstract: A reversible baffle plate for receiving and supporting a bottom hole survey apparatus on the interior of a directional drilling string is characterized by concentrically disposed inner and outer members supported one from the other by a plurality of webs. The webs cooperate with the inner and outer members to define a plurality of flow passages through the baffle plate. The first and second axial ends of the inner tubular member are each adapted to receive and support the lowermost axial end of a bottom hole survey apparatus.

Abstract: Process of fabricating hollow bead rings for the beads of pneumatic tires, said hollow bead rings having a radial cross-section with at least one interior partition which connects together two portions of the outer contour, is improved by using the following operations:(a) extruding, by means of an extruder whose orifice is equipped with a single mandrel, a hollow member whose interior partition is connected to a single one of said portions, the other end of the interior partition being free, and(b) deforming, in one or more steps, the radial cross-section of the hollow member until the free end of the interior partition comes into contact with the other portion of the outer contour.

Abstract: An air intake pipe, for mounting to the air filter of an internal combustion engine has two air flow channels having different lengths. A duct is provided between the air flow channels connecting them over their entire length. The duct is dimensioned to provide both sound attenuation and acoustic wave interference between intake noises in the two channels. Thus, the intake pipe acts as an intake noise silencer.

Abstract: An improved assembly of flexible multi-conduit tubing, and a method for the manufacture thereof are disclosed. The assembly provides a multiple conduit tube which is preformed in a specific helical shape to reduce bulk and to automatically return to shape without risk of tangling of the turns. This configuration is accomplished by winding the flexible tube in the helicoidal groove of a screw, and subjecting it to the proper heat treatment.

Abstract: A long-distance heating conduit comprising one or more tubes which carry the heating medium, are laid in the conduit and are surrounded individually or jointly by at least one layer of heat-insulating material and are covered by at least one cover foil which extends in a closed path round the tube or tubes and is provided with holes.

Abstract: An arrangement for connecting an attachment to a vacuum cleaning device includes two connecting sleeves, one on the attachment and the other on the device. One of the connecting sleeves has an inner and an outer portion which together bound a groove in which a projecting portion of the other connecting sleeve is received in the assembled condition. The shapes of such portions are identical but the dimensions thereof are proportionately different. Each of the portions includes a part-cylindrical circumferential zone and a polygonal zone gradually merging with the part-circular zone and complementing the same into the respective circumferentially complete portion. The other connecting sleeve may have a transverse wall at the polygonal zone, which abuts against a corresponding transverse region of the one connecting sleeve, and a seal may be sandwiched therebetween in the assembled condition. Another seal may be accommodated in the groove in the assembled condition.

Abstract: A pipe cross fitting for interconnecting tubular structural members of an offshore platform of the type used by the oil industry. The cross fitting is reinforced by the addition of an internal structural element that extends across the central open portion of the fitting and into all of the branches of the fitting to resist the tension and compression forces applied to the fitting during use.

Abstract: A rotary distributor arm comprising improved distribution nozzles and flow control accomplished by a gradual taper of the arm itself is defined which ensures a uniform flow distribution across the full radius of the distributing medium so that uniformity and optimum economy and efficiency are achieved with respect to the trickling filter itself because a uniform fluid flow is distributed across the entire top surface thereof.

Abstract: A flow restrictor is made by flattening a tube of flexible material about a member of cross-sectional characteristics representative of a desired flow passage, and securing the tube there, e.g. by rf welding. The member is then removed leaving a determinate flow passage in which problems of creep do not arise. The restrictor may have parallel to the flow passage a portion of the tube which is not permanently secured together so as to leave a by-pass which can be open to give a comparatively unrestricted flow passage or can be temporarily completely closed by external compression. A single tube may have in line a plurality of such restrictors with by-passes, the flow passages of the various restrictors being of different flow characteristics. The flow characteristic required is obtained by closing off the by-pass associated with the selected flow passage.

Abstract: A unitary supply means for two separate liquids comprising a flexible supply hose unit defining at least two conduits generally of different sizes, one of which preferably is transparent, having an integral common wall reinforcement of extra thickness between them urging the hose to straighten against kinking and providing short free ends for each conduit of different lengths for mating longitudinally spaced series of connections or couplings with appropriate liquid supplies and mixer inlets, the couplings in the solute line being self-tightening under longitudinal stretch strains, and preferably in combination with means for adjusting the relative rates of flow of the liquids through the several mixing chambers.

Abstract: A polymeric flexible hose construction and method of making same are provided wherein such hose construction comprises a tubular wall defining a main longitudinally extending passage for conveying a fluid therethrough and a second wall adjoining the tubular wall and defining a second longitudinally extending passage for an electrical conductor with the second wall having a wall portion common with the tubular wall.

Abstract: An improved method of modifying a honeycombed body having a multiplicity of open-ended cells extending therethrough between opposite face ends of the body to produce therein a multiplicity of flow paths for at least two and possibly three separate fluids. For accommodating two fluids, selected columns of cells within the honeycombed body are provided with openings near at least one face end for first fluid flow through one or two longitudinal, opposed boundary surfaces and through inner cell walls parallel to the cell axes while the open-ends of such columns on a face end perpendicular to the selected cell axes are sealed against fluid flow. Second fluid flow is through the unselected columns of cells parallel to and either in the direction of or counter to the first fluid flow. Specifically, the invention provides an improved method for sealing the selected columns of cells on face ends of the body.

Abstract: A heat exchange element, particularly suitable for use as a recuperator for external combustion engines, or a body for use as an afterburner or in filtration and osmosis, may be produced as a monolithic, ceramic, honeycombed body having a plurality of flow paths therethrough for two or three fluids wherein multiple flow paths of separate fluids are separated by walls which may be less than 10 mils thick.In a preferred method, a honeycombed ceramic body is provided with a plurality of open-ended cells extending from one face end to another face end and arranged in vertical columns of cells separated by vertical fluid barrier wall surfaces. Selected columns of open-ended cells are closed on both face ends of the body and entrance to and exit from the selected cells is provided by removing portions of cell walls near face ends of the body between fluid barrier wall surfaces.

Abstract: A drain trough having longitudinally lined plastic round pipes and plastic connectors for connecting the pipes to each other in order to form a long drain trough. The plastic pipes each has slits longitudinally and intermittently extending and formed in the peripheral wall of the pipe. The inner space of the pipe has a partition wall of various shapes, which wall extending along the length of the pipe so as to divide the space into two, three or four compartments, through which drain water flows. The drain trough is slantly buried in the ground or track and field.

Abstract: A sprinkler system weighing, when automatically drained, under 20 pounds per 1000 foot of tubing plus sprinkler heads and, that can be rapidly rolled up by a tractor carrying a reel, is made of two concentric polyester plastic tubes both 2 inches in diameter with 0.001 inch thick walls. The two concentric tubes are sealed together at the top and 0.04 inch diameter holes are spaced at 6 foot intervals along the top seal so that water flowing through the inner tube can spray out. The outer tube is aluminized to protect the polyester against the sun and a black stripe is painted along the top of the outer tube so that photoelectric cells can make the spray holes along the black line be unrolled on top when the irrigation tubing is put in place. When it is desired to move the irrigation tubing, the water is shut off and air is forced between the inner and outer tubes. This about completely forces the water out of the inner tube making an extremely light load to roll up and carry.

Abstract: A heat exchanger tube, and a method and apparatus for forming a heat exchanger tube are disclosed. The tube is formed from a metal strip having inflatable passages. The passages are inflated after the tube is formed. In use, one fluid flows through the tube and at least one fluid flows through the wall passages. Another fluid, contacting the exterior of the tube, may be employed.

Abstract: Conduit means characterized by having a plurality of parallel adjacent, longitudinally extending passageways within an exterior wall and having longitudinally extending ribs extending longitudinally of and exterior to the exterior wall for high flexural strength and high strength enabling bearing high external loads. The passageways have at least a portion of their interior walls in common with adjacent passageways. Preferably, the conduit, including the ribs, are formed of a lightweight, extrudable plastic. Also disclosed are structural details, apparatus, and methods, including one for making any number of passageways in the conduit.

Abstract: .Iadd.An elongate closed flexible integral plastic film tube for use in making reclosable bags with the tube having first and second interlocking rib elements and first and second groove elements on the surface thereof each shaped for cooperative pressure engagement and forcible separation between the ribs and grooves with the elements spaced apart from each other in both circumferential directions and the film at one side of the elements for forming the body of a bag formed from the tube and the film at the other side of the elements providing a flange forming portion. The elements are spaced so that the bag portion is wider than the flange portion. .Iaddend.