Abstract: An even-flow tee arrangement for use with a septic system consists of a tee connector having top and bottom section cemented together. The bottom section includes a splitter plate extending from the tee-shaped exit end to two pairs of directional vanes proximate the entrance end of the tee connector.

Abstract: A repositionable downspout extension is formed as an integral blow molded plastic component having three distinct sections. A downspout connector end merges with a corrugated extendible middle section which terminates in a drainage pipe connector. The downspout connector includes two rectangular sections of different sizes defining two different securing segments for engaging two different sizes of downspouts. The middle section is of a pleated configuration and is of variable length by expanding or collapsing of the pleats. The drainage pipe connector is a circular connector for connecting with commonly used corrugated plastic pipe or rigid plastic pipe. In a preferred embodiment the downspout connector end also includes a connector for insertion and retention in the corrugated middle section.

Abstract: A vacuum pump (1, 30) has an inlet (5) and an outlet (6). Plug-in screw fittings (9) are connected with the inlet and the outlet. The plug-in screw fittings include a bore with an internal bevel (22) that receives a flexible connecting line (23), a chuck collet (19), and an O-ring (21) frictionally in a vacuum-tight relationship. In this manner, a more simple and versatile connection is provided between the vacuum pump and the connecting lines.

Abstract: A linearly self-actuated hose for use in transporting fluids (liquids, gases, solid particles, and combinations of these three). Hoses (30) and (30b) have a biasing spring (36) extends along the full length, and can comprise single or multiple springs and/or multiple diameter spring coils. Spring (36) is covered with hose cover material (32) on the outside and hose cover material (34) on the inside to form a sealed hose and are bowed inward or outward radially between the individual spring coils depending on the intended use of hose (30) or (30b), respectfully to give the cover materials room to move out of the way when the hose retracts and the coils of spring (36) are forced close together. Hose (30b) is designed with a source end (26) and a output end (68). A pressure control mechanism is used on output end (68) to control the extending and retracting of hose (30b).

Abstract: Tubes formed from a propylene based composition having a flexural modulus of elasticity of 1,400 to 2,000 MPa and a melt flow index of 0.1 to 1 g/10 minutes, including: from 80 to 97 parts in weight of a propylene homopolymer (A) having an isotacticity index of at least 0.96, and from 20 to 3 parts in weight of a statistical copolymer of propylene (B) containing from 45% to 70% ethylene by mole and/or an alpha olefin containing from 4 to 8 atoms of carbon, the ratio of the intrinsic viscosity of polymer (B) to polymer (A) being at least 1.55 and less than or equal to 3.

Abstract: A concrete boom hose is provided with a first end that is connected to the outermost end of a series of concrete pipes and a second end through which the flowing concrete exits. The second end is provided with an inner diameter that is smaller than the inner diameter of the first end that is connected to the concrete pipe.

Abstract: A method for laying a pipeline on the sea bed from a lay barge in order to achieve controlled thermal expansion, comprises the following steps: Feeding out of the pipeline having a radius of initial residual curvature from a pipeline reel, preferably via a stinger to a curvature device where a radius of reversal curvature is applied to the opposite side of the pipeline with respect to the radius of initial residual curvature when the pipelines is passing through the curvature device. The curvature device straightens out the pipeline to longer, mainly straight portions with length having a radius of residual curvature which is larger than a desire minimum radius of residual curvature. The curvature device exposes shorter portions of the pipeline with a length for a radius of counter curvature forming the thermal expansion loops having a radius of residual curvature which is less than a desired maximum radius of residual curvature for the thermal expansion loops.

Abstract: A water hose includes a helically shaped coiled tube having interior and exterior elliptical cross-sections with a flexural modulus greater than the flexural modulus of a coiled tube having interior and exterior circular cross-sections and the same neutral center line length as the elliptical cross-sections, but otherwise having the same properties as the elliptical cross-sections. The tube is made of extruded plastic resin having a durometer hardness measurement approximately in the range of 70-80 Shore A and has on its periphery ridges extending longitudinally at right angles to the elliptical cross-sections. In first and second embodiments, the elliptical cross-sections have major and minor axes respectively extending in the direction of the coil longitudinal axis and in planes extending at right angles to the longitudinal axis, and vice versa.

Abstract: A heat-reflective protective sleeve includes a substrate (10) and a sheet of reflective material (20) fixed on the substrate (10). The substrate (10) is elastically deformable from a non-operating position and the sheet (20) is pleated on the substrate (10) in the non-operating position.

Abstract: A flexible fire resistant innerduct structure is configured to contain a cable within a conduit. The innerduct structure includes a pair of adjacent strip-shaped layers of flexible material that are joined along their longitudinal edges to define a channel through which the cable can extend longitudinally through the innerduct structure between the layers. The adjacent layers have differing widths between their longitudinal edges, whereby the wider layer bulges away from the narrower layer to impart an open configuration to the channel. Other features of the innerduct structure relate to the material of which it is formed. Such features includes the structure of the material, such as a woven structure, and further include properties such as melting point, tensile strength, fire resistance, elongation, coefficient of friction, crimp resistance and compression recovery.

Abstract: A connector for connecting elongated enclosures of a wire and cable enclosure system, includes: a manually bendable pleated body having first and second ends; a first coupling member extending from the first end of the body, for attaching one of the elongated enclosures to the connector, and a second coupling member extending from the second end of the body, for attaching another one of the elongated enclosures to the connector. The pleated body allows the connector to be manually bent from side-to-side, manually bent from front-to-back, manually lengthened, or manually shortened to provide a desired configuration.

Abstract: A solution polymerization process in a series or parallel of two or more reactors at different temperatures is used to prepare a multimodal polyolefin resin of narrow molecular weight distribution. This resin is used to manufacture melt extruded pipe that has an improved performance at elevated temperatures and an improved hydrostatic design.

Abstract: A hose of a laminated structure which comprises a rubber layer composed of a rubber composition, and a laminate including a metal foil and a resin, the rubber composition including: (A) a rubber including at least one of an ethylene-propylene-diene terpolymer and an ethylene-propylene copolymer; (B) a peroxide vulcanizing agent; (C) a resorcinol compound; and (D) a melamine resin. The hose is light in weight, less costly, and has excellent gas barrier properties.

Abstract: A single wire cable conduit provided having a rhomboid-shaped wire including approximately parallel sides, a rounded first end, and a tapered second end. The wire is serpentine wound into a hollow tubular body having a plurality of approximately parallel adjoining wire loops. The wire loops each have the rounded first end positioned in continuous displaceable contact with the tapered second end of an adjacent loop. As the hollow tubular body deflects, each wire loop displaces relative to its adjacent wire loop. Each rounded first end is able to rotate and translate along the abutting tapered second end reducing both conduit bending resistance and potential friction damage to either a sleeve or cable and to a jacket covering the hollow tubular body.

Abstract: An expanding and retractably collapsing device includes a generally cylindrical hose which is expandable and retractably collapsible and has formed on a surface thereof a circumferentially extending rib. A roller assembly having rotatable framework is disposed adjacent the hose and has roller bearings disposed in the framework for mechanically engaging the rib such that rotation of the framework in one or another direction causes either expanding or collapsing the hose. The roller assembly is generally axially stationary with respect to an axis about which the hose expands and contracts. An air supply unit is connected to the hose to deliver conditioned air. A remote controller enables operation of the air supply unit and includes a detector for detecting toxic air conditions and generating an alert signal indicating an unsuitable environmental condition.

Abstract: The present invention relates to a medium-carrying hose, preferably for pressure medium and for use in, for instance, an engine unit, the wall of the hose comprising at least one wall portion (5). The wall portion (5) is connected with at least one expansion portion (4) to form a continuous hose casing, so that the circumference of the hose is variable between a minimum value, when the expansion portion (4) is unexpanded, and a maximum value, when the expansion portion (4) is maximally expanded. The expansion portion (4) extends in the transverse and the longitudinal direction of the hose, the wall portions (5) being displaced relative to each other both in the transverse and in the longitudinal direction of the hose as the circumference increases and the expansion portion (4) expands. The invention also relates to a method for manufacturing such a hose.

Abstract: The pipe of the present invention comprises an ethylene base polymer comprising ethylene and an &agr;-olefin having 3 to 20 carbon atoms, wherein (A) a maximum value of the residual stress is 0.13 MPa or less; (B) the crystallinity is 0.630 to 0.850; (C) a gradient of the crystallinity against a thickness of the pipe is 0.465 or less; and (D) the pipe has a thickness of 5 to 50 mm. It is excellent in a durability, a rigidity and an impact resistance and suited to uses for large diameter pipes receiving a high internal pressure.

Abstract: The present invention relates to hydrogenated nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art. The present invention is also related to shaped articles containing hydrogenated nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art.

Abstract: Polymer compositions based on vinylidene fluoride resins which are particularly suitable for the manufacture of pipes for conveying hot hydrocarbons under pressure, comprising by weight; (A) from 60 to 80% of at least one PVDF homopolymer; (B) from 20 to 40% of at least one thermoplastic copolymer of vinylidene fluoride (VF2) and of at least one other fluoromonomer (for example hexafluoropropylene, chlorotrifluoroethylene or trifluoroethylene), containing approximately from 5 to 25% of this other monomer; and (C) a plasticizer, in proportions of 5 to 20% [relative to the total weight of the polymers (A) and (B)], preferably dibutyl sebacate or a polyester of molecular mass of between 1500 and 5000.

Abstract: An ink tube (10) for an ink jet printer is formed by using a thermoplastic elastomer composition, having a Shore-A-hardness of not more than 70, which comprises an olefin thermoplastic resin and a rubber component, containing not less than 30 wt % of butyl rubber, which is dispersed finely by dynamic vulcanization the rubber component in the olefin thermoplastic resin. It is preferable to extrude the thermoplastic elastomer composition tubularly by a resin extrusion method.

Abstract: A flexible pressure-washer hose and pressure washing apparatus are disclosed. The hose is of concentric laminar construction and comprises an inner core, an intermediate metallic sheath covering the core, and a jacket covering the intermediate sheath. The disclosed hose has a burst pressure of at least 12,000 psi, yet is highly flexible. The disclosed pressure washer comprises a hose made in accordance with the invention and fluidically connecting a source of pressurized fluid to an operator wand.

Abstract: A single wire cable conduit provided having a rhomboid-shaped wire including approximately parallel sides, a rounded first end, and a tapered second end. The wire is serpentine wound into a hollow tubular body having a plurality of approximately parallel adjoining wire loops. The wire loops each have the rounded first end positioned in continuous displaceable contact with the tapered second end of an adjacent loop. As the hollow tubular body deflects, each wire loop displaces relative to its adjacent wire loop. Each rounded first end is able to rotate and translate along the abutting tapered second end reducing both conduit bending resistance and potential friction damage to either a sleeve or cable and to a jacket covering the hollow tubular body.

Abstract: There is disclosed a method for configuring or reconfiguring branches in tubing in which the axes of at least two components of the branched structure are arranged askew.

Abstract: The pipe of the present invention comprises an ethylene base polymer comprising ethylene and an &agr;-olefin having 3 to 20 carbon atoms, wherein (A) a maximum value of the residual stress is 0.13 MPa or less; (B) the crystallinity is 0.630 to 0.850; (C) a gradient of the crystallinity against a thickness of the pipe is 0.465 or less; and (D) the pipe has a thickness of 5 to 50 mm. It is excellent in a durability, a rigidity and an impact resistance and suited to uses for large diameter pipes receiving a high internal pressure.

Abstract: A flexible fire resistant innerduct structure is configured to contain a cable within a conduit. The innerduct structure includes a pair of adjacent strip-shaped layers of flexible material that are joined along their longitudinal edges to define a channel through which the cable can extend longitudinally through the innerduct structure between the layers. The adjacent layers have differing widths between their longitudinal edges, whereby the wider layer bulges away from the narrower layer to impart an open configuration to the channel. Other features of the innerduct structure relate to the material of which it is formed. Such features includes the structure of the material, such as a woven structure, and further include properties such as melting point, tensile strength, fire resistance, elongation, coefficient of friction, crimp resistance and compression recovery.

Abstract: A pipe liner bag everting nozzle is provided for allowing an operator to freely access a manhole during a lining operation. A pipe liner bag everting nozzle comprises a guide tube fixing end for fixing one end of a guide tube, and a pipe liner bag fixing end for fixing a folded end of an uneverted pipe liner bag passed through the guide tube, wherein the guide tube fixing end has a diameter smaller than a diameter of the pipe liner bag fixing end. Since a guide tube having a smaller diameter than that of a pipe line to be repaired (or the pipe liner bag) can be used, a sufficient gap is formed between the guide tube and the manhole, thereby allowing the operator to freely access the manhole during the lining operation for inspection and confirmation of a lining situation.

Abstract: A thermally stable electrically conductive polymer mixture, for use in forming electrically conductive molded articles, includes at least two additives for contributing to the polymer mixture's electrical conductivity. At least one of the additives concentrates at or near the surface of a molded article for electrical surface conductivity, while at least one other additive concentrates at or near the core of a molded article to heighten electrical core conductivity to promote electrostatic discharge.

Abstract: A conduit defining a continuous conduit passage extending from a first opening to a second opening includes a plurality of flexible, tubular, corrugated sections, each defining at least a portion of the conduit passage therethrough. A plurality of tubular, non-corrugated sections are merged with at least one of the corrugated sections and define at least a portion of the conduit passage therethrough. The plurality of corrugated sections and the plurality of non-corrugated sections are arranged in alternating relation.

Abstract: A water hose includes a heclically shaped coiled tube having interior and exterior elliptical cross-sections with a flexural modulus greater than the flexural modulus of a coiled tube having interior and exterior circular cross-sections and the same neutral center line length as the elliptical cross-sections, but otherwise having the same properties as the elliptical cross-sections. The tube is made of extruded plastic resin having a durometer hardness measurement approximately in the range of 70-80 Shore A and has on its periphery ridges extending longitudinally at right angles to the elliptical cross-sections. In first and second embodiments, the elliptical cross-sections have major and minor axes respectively extending in the direction of the coil longitudinal axis and in planes extending at right angles to the longitudinal axis, and vice versa.

Abstract: A water delivery tube assembly for use in an internal combustion engine of a locomotive provides water between an inlet aperture of a power pack and an outlet aperture of a manifold where the inlet aperture and outlet apertures are longitudinally offset from each other and are disposed in misaligned planes. The assembly includes a flexible metal pipe having inlet and outlet ends and a metal braid surrounding the pipe. The inlet and outlet housings are operatively coupled to the inlet and outlet ends of the pipe, respectively and defme an internal fluid flow path in fluid communication with the pipe. The inlet and outlet housings have compound angles defining the fluid flow path such that when the inlet housing is secured to the power pack and the outlet housing is secured to the manifold, the flexible metal pipe is maintained in a substantially linear configuration between the housings.

Abstract: A temporary water drainage system having a tubular length of flexible water-proof material (25) and a fastening device (15) on at least one end where the material (25) can be connected to a water source (20). The fastening device (15) may be an adhesive material or it could be a form of clamp (26) or a sleeve which passes over the tubular length of flexible water-proof material (25). The length of flexible water-proof material (25) may, at its end away from the water source be connected to a stormwater drain or the like or can pass any water received therein to waste in some other way.

Abstract: The invention concerns a flexible pipe element, in particular for exhaust pipes of combustion engines of motor vehicles, with a helically threaded or ring-corrugated bellows, at least one strip wound hose which is coaxially adjacent to the bellows and which is helically wound or comprises several annular segments, at least one spacer which is disposed locally between the bellows and the strip wound hose and a knitted tube disposed on the outside, wherein the pipe element has an overall maximum rigidity of 5 N/mm.

Abstract: A catheter includes a steering mechanism for manipulating the distal end of the catheter to obtain a plurality of deflection profiles, a torque transfer system to enhance torque transfer from the handle to the distal tip, and a support system to reduce undesirable deformation of the distal-end region during steering. The torque transfer system includes a flat ribbon within the relatively flexible distal-end region to enhance torque transfer through the distal-end region of the catheter. The support system includes a compression cage and longitudinal struts that are located within the distal-end region of the catheter. The support system can support axial loads and deflect laterally in the direction of the steering, thereby reducing the amount of stretching and compression of the catheter sheath within the deflecting region.

Abstract: A multitubular device having an external cylindrical or regular polygonal tubing with a profile of longitudinally constant or invariable section and internal cavities defined by separating membranes, the external cylindrical or regular polygonal tubing and the separating membranes being made of high density polyethylene (HDPE) or equivalents thereof. Preferably, the multitubular device is a heptatube, a dodecatube or a tridecatube.

Abstract: Thermoplastic multilayer composite, particularly in the form of a multilayer hose, a multilayer pipe or a multilayer container, containing at least one intermediate layer made of a molding compound on the basis of ethylene/vinyl alcohol copolymers between layers made of molding compounds on the basis of polyamide, the intermediate layer being bonded via at least one adhesion-promoting layer made of a molding compound on the basis of polyamide selected from the group of copolyamide 6/12, block copolyamide 6/12, polyamide 612, polyamide 610, a mixture of polyamide 6 and polyamide 12 with compatibilizer, a mixture of polyamide 6 and polyamide 11 with compatibilizer, with at least one neighboring layer made of a molding compound on the basis of polyamide 12, polyamide 11, polyamide 1010, polyamide 1012, or polyamide 1212.

Abstract: The blow-molded hose of a synthetic resin of the present invention is produced by blow-molding a single parison comprising a soft resin and a hard resin. The blow-molded hose comprises a monolayer (or single-layer) segment formed with either a soft resin layer or a hard resin layer and multilayer laminating) segment formed with the soft resin layer and the hard resin layer, wherein, in the multilayer (laminating) segment, the thickness of the resin layer forming the monolayer segment is thinner than that of the other resin layer. Practically, the monolayer segment comprises the soft resin layer and forms the connection end(s) at the end(s) of the hose.

Abstract: Various embodiments of an umbilical are provided. In one aspect, an umbilical is provided that includes a first tube, a second tube positioned in the first tube and a plurality of third tubes positioned in the first tube. Each of the plurality of third tubes has an inner polymer sleeve and an outer sleeve of carbon fibers in an epoxy matrix positioned around the polymer sleeve. The composite tubes yield a lighter umbilical that is easier to handle than a comparably sized conventional umbilical incorporating steel inner tubing and is more tolerant of dynamic bending and hydrostatic pressure loading.

Abstract: A flow-dampening degassing apparatus for transport of liquid chromatography fluids therethrough includes a substantially burdoin-shaped flexible tube disposed in a reduced-pressure chamber, the tube being sufficiently flexible to expand in a cross-sectional direction upon incursion of a fluid pulsation to thereby increase an inner volume of the tube and correspondingly reduce fluid pressure therein. In a particular embodiment, the tube is fabricated from a gas-permeable and liquid-impermeable material for degassing transported fluids in the reduced-pressure chamber.

Abstract: A fuel injector has at least two generally parallel feed strips. Each of the feed strips is constructed from a single bonded together pair of lengthwise extending plates, each plate having a single row of widthwise spaced apart and lengthwise extending parallel grooves. The plates in each strip are bonded together such that opposing grooves in each of the plates are aligned forming internal fuel flow passages through the length of the strip from an inlet end to an outlet end of the strip. The inlet ends are spaced apart from each other and the outlet ends are spaced apart from each other. Each of the feed strips has one or more convolutions along a length of the strip and the feed strips are not bonded together along the convolutions. The feed strips may be spaced apart from each other or may be in contact with each other.

Abstract: A double bellows seal comprising a plurality of rings including first and second end rings, a middle ring, a first bellows, and a second bellows. The first bellows is formed from a flexible material that is sealingly connected between the first end ring and the middle ring, and it has a twist bias in a first rotational direction relative to an axis of the rings. The second bellows is formed from a flexible material that is sealingly connected between the second end ring and the middle ring. The second bellows has a twist bias in a second rotational direction relative to an axis of the rings that is opposite that of the first rotational direction.

Abstract: The invention relates to a hose arrangement for vehicles, having a hose line which is held by one end on a moveable vehicle part and by its other end on a fixed vehicle part, the distance between the ends of the hose line being shortened, in an end position of the moveable vehicle part in the vicinity of the fixed vehicle part, to an extent leading to a buckling load on the hose line. In order, in the course of relative movements of the moveable vehicle part with respect to the fixed vehicle part, to automatically ensure a desired displacement of the hose line between its end positions, the hose line has a flexible length region whose two ends are adjoined in each case by a stiffer length region of the hose line, in order to control an envisaged yielding folding.

Abstract: The invention concerns a flexible pipe element, in particular for exhaust pipes of combustion engines of motor vehicles, with a helically threaded or ring-corrugated bellows, at least one strip wound hose which is coaxially adjacent to the bellows and which is helically wound or comprises several annular segments, at least one spacer which is disposed locally between the bellows and the strip wound hose and a knitted tube disposed on the outside, wherein the pipe element has an overall maximum rigidity of 5 N/mm.

Abstract: The present invention relates to a method intended for heat insulation of a pipe (1), comprising the following successive stages of depositing, on the outer surface of the pipe moving longitudinally, a thickness (3) of an insulating material made of elastomer having an elastic type behaviour, substantially without irreversible plastic deformation, forming at least one circumferential slot (4) in the thickness of the material substantially orthogonally to the axis (2) of the pipe, and coating the insulating material thickness with a sealed sheath. In a variant, the slot is machined in the thickness of the insulant. The invention further relates to a heat-insulated pipe.

Abstract: The present invention generally relates to a device and a method for supplying conditioned air for heating and/or cooling from a first environment to a second environment. More specifically, the present invention provides a hose in a container and a retractor. The retractor may have a drive unit with a belt. Protrusions on the hose may correspond with grooves on the belt. The belt of the drive unit may engage the hose and pull the hose from the container. In addition, the drive unit may also retract the hose into the container when the hose is not needed. Further, a linear actuator may release the retractor from the hose allowing the hose to be pulled manually from the container.

Abstract: A sectional, modular and orientable element for the formation of fairlead raceways (7) for wires (8), including a central body (2) provided with a plurality of shaped and aligned arms (6) which extend radially from said central bodies (2) and with means for their coupling. Said coupling means includes at least two sequential coaxial cavities (4, 5) obtained at an end (2) of said central body (2), and an extension provided at the free end of an hemispheric coaxial bull (3) obtained at the opposite end of said central body (2) and coaxial to said cavities (4, 5). The modular concatenation takes place by fitting the hemispheric bulb (3) of a first modular element with one of the cavities (4, 5) of a second modular element. The fitting in either the first (4) or the second sequential cavity (5) allows obtaining of concatenations that can be oriented following direction variations of the raceways, or that can be straight for linear raceways.

Abstract: An air duct assembly includes a flexible fabric duct for conveying and distributing a source of forced air to a room or other area of a building. The fabric duct is air permeable and/or includes discharge openings that evenly disperse the air into the room. When the source of forced air cycles on and off to meet the ventilating or conditioning demand of the area being served, the duct respectively inflates and deflates in response to changes in air pressure within the duct. To minimize noise created by the duct inflating suddenly, the duct is held in tension at all times. In some embodiments, the duct is held in resilient tension by a connector that couples a downstream end of the duct to an overhead cable from which the duct hangs. In some embodiments, a hoop attached to an end cap of the duct holds the end cap generally vertical.

Abstract: Thermosetting resin pipes and pipe fittings are provided which are prepared by polymerizing a cyclic olefin monomer in the presence of a ruthenium or osmium metathesis polymerization catalyst. These articles may be prepared by various methods, such as centrifugal casting. Reinforced articles may also be prepared by filament winding.

Abstract: A tubing connector for joining the ends of two lengths of expandable tubing including two expandable tubular portions for mounting on the ends of the lengths of expandable tubing. Each portion includes a plurality of circumferentially spaced couplings for engaging corresponding couplings on the other portion. The engaging parts of the couplings are located on parts of the tubular portions which define an upset following expansion.

Abstract: An all-plastic air feeder pipe having a tubular inner moisture barrier and a tubular outer layer. The inner barrier is made of a material having a relatively low permeability coefficient, while the outer layer material is of a relatively large permeability coefficient. By this arrangement an all-plastic low-cost pipe with improved moisture protection for a pressurized cable network can be constructed economically.

Abstract: A lightweight hose assembly (10) of the type adapted for conveying fuels and other corrosive fluids. The assembly (10) includes a tubular inner liner (12) comprising a polymeric fluorocarbon material resistant to chemical and heat degradation, and is characterized by including an outer liner (14) comprising an expanded polyamide material disposed about the inner liner (12). The assembly (10) further includes a conductive strip (30) formed along the inner liner (12) for dissipating electrical charges accumulating along the inner liner (12).