Abstract: In order to connect a connection piece (10), which is, for example, a pipe coupling or a mounting or a fitting, to a thermally insulated conduit pipe (1), a clamping sleeve (9) with an internal thread (8) is screwed in between the internal pipe (2) of the conduit pipe and the insulation layer (3) of the conduit pipe. A connection body (11) with a plug sleeve (13) is arranged in the internal pipe beforehand. The clamping sleeve (9) acts indirectly on the connection piece (10) by way of a retaining ring (14) in order to press the connection piece against the end face (5) of the internal pipe (2). In this way, the distance between the insulation layer (3) and the casing (4) of the conduit pipe is dispensed with and inaccuracies when cutting the conduit pipe to length can be compensated.

Abstract: A fuel vapor control device has a flow control valve which regulates a flow amount of fuel vapor from a fuel tank to a canister. The flow control valve has a movable element accommodated in a case. The movable valve element has a central cylindrical part, an outer cylindrical part, and a disc part which connects the central cylindrical part and the outer cylindrical part. The central cylindrical part provides a central channel. The central channel provides a main channel which communicates an inlet and an outlet. A sub channel defined and formed between the movable element and the case is opened and closed by a valve formed by the case and the outer cylindrical part. The central channel makes easy setting of flow amount in regulated condition. Since turbulence is reduced, it is possible to perform stable regulation.

Abstract: A cable bend limiter provides one or more joints including alternating sleeves and outer ball sections enclosing inner ball sections. Friction is controlled by washers at, or low friction surface treatments on, either side of the outer ball sections.

Abstract: A method for manufacturing a flexible tubular underwater pipe (10): A leakproof tubular structure (12, 14, 16) is covered with at least one layer (18, 20) of armor wires. At least one continuous longitudinal element made of a deformable material is wound in a helix with short pitch around the layer (18, 20) of armor wires to form a holding layer 24. The at least one longitudinal element is wound under longitudinal tension T0 so as to stretch its deformable material according to a relative elongation corresponding to a tensile stress ?0 less than the elastic limit value ?E of the deformable material, and the elastic limit value ?E corresponds to a tensile stress beyond which the deformation of the material is irreversible.

Abstract: The objective of the present invention is to provide a diaphragm damper with which the amount of volume change due to the resonance frequency and pressure can be set freely and the performance of the diaphragm damper can be optimized, without changing the attachment structure for a conventional metal diaphragm and without obstructing the space where fuel flows in a fuel chamber. To this end, this diaphragm damper, wherein a high-pressure gas is enclosed in a high-pressure chamber formed by two disk-shaped metal diaphragms the outer circumferential portions of which have been joined together, is constructed such that rubber-like elastic members are arranged within the high-pressure chamber.

Abstract: An accumulator includes a bellows housed to freely expand and contract in a shell, a port part having a pressure fluid inflow port formed therein, and a self-sealing member arranged on a tip portion of the bellows to face the port part, in which when a pressure in the fluid chamber is lower than a predetermined pressure relative to an air chamber, the self-sealing member is allowed to abut onto a seal area of the port part to block the pressure fluid inflow port. The self-sealing member includes a resilient member arranged on a surface of a base material part, and an overhanging portion formed on the resilient member and allowed to abut onto the seal area for sealing. The port part includes a seal face having the seal area formed thereon, and a projecting portion arranged on a region other than the seal area on the seal face.

Abstract: The invention relates to a bonded high-pressure rubber hose comprising a flexible internal stripwound tube (10), a liquid and gas tight liner (2) made from rubber or plastic, reinforcing plies embedded in rubber, and in specific cases an adhesively bonded coupling body (11), the lower reinforcing ply or plies being disposed at an angle smaller than the so-called angle of equilibrium (35.26°). The invention is characterized by that in addition to the primary liner the hose (2) comprises a liquid and gas tight secondary liner (7) disposed above the small angle reinforcing ply or plies (1,1a), and that the following inequality holds for the angle of lay of the lowest reinforcing ply (1) of the hose: •where •a1 is the angle of lay of the lowest small angle reinforcing ply (1) •D s is the outside diameter of the internal stripwound tube (10) •D1 is the mean diameter of the lowest small angle reinforcing ply (1).

Abstract: Tubing for a liquid medium that is to be conditioned, including an inner tube for the liquid-medium that is to be conditioned encompassed by an outer tube, parallel to the inner tube. An outermost tube surrounds the outer tube. At least one duct for the liquid conditioning medium, is disposed between the inner tube and the outer tube and at least one duct for the liquid conditioning medium is disposed between the outer tube and the outermost tube. A redirecting region connects the ducts between the inner tube and outer tube and the outer tube and the outermost tube. The inner tube and the outer tube consist of thermoplastic plastics, and the unit, consisting of the inner tube and the outer tube, is produced by co-extrusion.

Abstract: A self-actuated linearly retractable and extendible hose for use in transporting fluids (liquids, gases, solid particles, and combinations of these) between a source location and an output location can be implemented as an extendible hose comprising a biasing element, a sealing layer, and a reinforced cover layer. The sealing layer forms a sealed conduit for transporting the fluids, and the reinforced cover layer on the outside provides radial and longitudinal strength for the sealing layer. The hose can be operated by increasing internal pressure within the hose relative to ambient pressure. When the hose is pressurized by a fluid source, the internal pressure of the hose overcomes the retracting force of the biasing element and the hose extends. When the fluid source is turned off or disconnected from the hose, internal pressure is reduced and the biasing element exerts a tension force on the hose causing the hose to retract.

Abstract: An insulated ductwork system particularly adapted for exterior use joins together pre-assembled air circulation duct sections that each have a ductwork passageway that is formed solely with insulation panels of foam insulation material disposed between foil sheets that are in turn covered by additional insulation material and an outer protective jacket to seal the ductwork from weather effects. The air circulation duct sections are used without traditional metal ductwork forming any part of the air circulation duct. Receiving flanges extend from the ends of each air circulation duct section and the duct sections are joined together in abutting relation with at least one slidably engageable sleeve that engages the flanges. A filler insulation is disposed over the sleeve. A closure band is disposed over the filler insulation and joined to exterior surfaces of the air circulation duct sections.

Abstract: A liner tube is provided for repairing either a single pipe line or a main pipe line having a lateral pipe line connected thereto. The liner tube assembly includes a liner tube impregnated with a liquid material capable of curing and hardening. The liner tube includes a gasket or band positioned about the juncture of the pipe lines. The gasket or bands form a tight seal between the liner tube and the pipe line.

Abstract: The invention relates to a garden hose with at least one cover layer. The aim of the invention is to improve the grip of the hose relative to the hand of the user and/or on a connection to a connecting element via a compression-type fitting. For this purpose, a relief structure is produced on an outward surface of a cover layer of the hose. The relief structure can substantially improve the haptic impression and/or, when the connection is tight, bring about an interlocking or at least semi-interlocking engagement of retaining elements of a connecting element with the relief structure and substantially increase the retaining force which prevents the hose end from accidentally slipping off the connecting element.

Abstract: A fluid heating system for heating fluid flowing in a pipe to prevent freezing and ice build up. A controllable variable flow heat exchanger is utilized within the pipe to provide thermal transfer to the fluid flow.

Abstract: A flow valve that maintains a constant flow valve despite varying pressures at its inlet, comprising: (a) an elongated cage with alternating axially-extending pockets and ridges on its inner surface; and (b) an elongated generally conical shaped elastomeric sleeve received within the elongated cage; wherein the sleeve flexes outwardly at higher pressures, thereby decreasing the size of the flow channel between the sleeve and cage, thereby restricting flow to maintain constant flow valve despite varying inlet pressures.

Abstract: A closure element for closing the ends of pipes, in particular steel pipes, having a circular base cover whose outer diameter corresponds at most to the outer diameter of the pipe, having a side which faces towards the pipe interior and comprises at least two elastic clamping elements which in the assembled condition are supported on the inner surface of the pipe and clamp the base cover therewith. In order to permit universal usage, the closure element comprises means for selectively adjusting/changing the radial position of the clamping elements on the base cover.

Abstract: A water pipe end cap having a front end and a rear end. The front end has a tapered tip. A flattened head is disposed on the tapered tip. A tapered buttress is also disposed on the tapered tip. The rear end has an elongate cylindrical male piece, a rounded buttress, a tapered heel, and at least one rigidly flexible raised ridge. Each of the rounded buttress, the tapered heel, and the raised ridge are configured to frictionally engage the inner wall surface of the water pipe preventing the water pipe end cap from becoming disengaged. The tapered buttress snugly covers the terminal end of the water pipe preventing dirt and grit from entering. The tapered tip prevents the water pipe from snagging or getting stuck on ribbed conduits. An elongated cylindrical inner cavity is continuously disposed within each of the male piece, the tapered buttress, and the tapered tip.

Abstract: An object of the invention is to provide a blow-molded foam which has homogeneous foamed cells in size, is light in weight, and is excellent in surface smoothness, and a process for producing the same. The invention is directed to a blow-molded foam 1 having a wall portion formed in such a manner that a thermoplastic resin containing a foaming agent mixed therewith is subjected to blow molding. Herein, the wall portion has a closed cell structure in which a plurality of foamed cells are contained. The wall portion has an expansion ratio of not less than 2.0 times. The wall portion has an outer face having a center-line average surface roughness Ra of less than 9.0 ?m. The foamed cell has a cell diameter having a standard deviation of less than 40 ?m in a thickness direction of the wall portion.

Abstract: An end cap for an open end of a hydraulic fitting having a peripheral flange can be provided by a threaded ring and a threaded insert. The threaded insert can be rotatably engaged with the threaded ring to move axially back and forth. The threaded insert has a forward end face which can engage the open end of the hydraulic fitting to close the hydraulic fitting end or to couple with it. The threaded ring includes a locking member to embrace and engage the peripheral flange. The end cap can be used to prevent loss of oil from the hydraulic fitting during service of equipment on which the hydraulic fitting is utilized, and for other purposes.

Abstract: A lockable pipe cover includes an inner cap and an outer cover which are selectively coupled together for axial rotation. When the cap is locked, the inner cap and the outer cover are free to rotate independently from one another thus rotation of the outer cover will not remove the cap from the pipe. In the unlocked position, the inner cap and the outer cover are coupled for rotation and thus rotation of the outer cover results in rotation of the inner cap.

Abstract: A self-actuated linearly retractable and extendible hose for use in transporting fluids (liquids, gases, solid particles, and combinations of these) between a source location and an output location can be implemented as an extendible hose comprising a biasing element, a sealing layer, and a reinforced cover layer. The sealing layer forms a sealed conduit for transporting the fluids, and the reinforced cover layer on the outside provides radial and longitudinal strength for the sealing layer. The hose can be operated by increasing internal pressure within the hose relative to ambient pressure. When the hose is pressurized by a fluid source, the internal pressure of the hose overcomes the retracting force of the biasing element and the hose extends. When the fluid source is turned off or disconnected from the hose, internal pressure is reduced and the biasing element exerts a tension force on the hose causing the hose to retract.