Abstract: A connector is forming a connection between a pipe or other item having a threaded end and a length of hose. The connector comprises an elongate hose engaging element (5) and, located thereon, a collar (35) having a threaded portion (39) for engagement with a threaded pipe end. The connector is provided with sealing means (49) for sealing between the collar and the hose engaging element.

Abstract: A core spray sparger for use in a nuclear reactor pressure vessel. The core spray sparger includes a plurality of core spray lines, a coupling apparatus, a bracket assembly, and an end clamp assembly. The core spray line includes a core spray line end cap.

Abstract: Coupling device for a pipe, comprising a sleeve having an insert end for the pipe and a sealing means adapted for realizing a seal around the pipe when inserted in the sleeve, said sealing means comprising a plurality of mutually slidable elements which together form a ring, and a grip ring being mounted within said elements and extending along at least a part of the perimeter of the pipe, the grip ring being formed with dents pressed out of the plane of the grip ring.

Abstract: A seal fitting including a generally frusto-conical male component with a plurality of annularly stepped portions on its exterior surface and an annularly extending groove defined on one end. A frusto-conical elastomeric seal is also provided in contact with the stepped portions on the male component and a female component is provided that has a frusto-conical opening adapted to receive the male component and compress the frusto-conical seal between the male and female components.

Abstract: Tube 1 is comprised with an engaging end portion 11 formed on one end thereof and an annular concave portion 1b formed on the engaging end portion at a position remote from the end surface in the axial direction; an elastic sealing member 2 is comprised with an inner tube 21, which has an outer peripheral surface to be fitted to an inner peripheral surface 13 of the tube, and an outer tube portion 22, which is provided at one end side of the inner tube portion that is bent outwardly over as to cover one end surface of the engaging end portion while covering the outer peripheral surface of the engaging end portion 11; and an elastic sealing member 2, which comprises an annular concave portion 2b formed on the inner peripheral surface of the inner tube portion and an annular protrusion 2a matching the annular concave portion 1b of the tube formed on the outer peripheral surface, is inserted into the tube.

Abstract: A piping joint for preventing pipe members laid across the connection end faces of two adjacent structural elements from being damaged by changes in the relative positional relationship between the two adjacent structural elements due to the expansion and contraction caused by changes in the temperature or external stresses. The piping joint connects the end portions of the two pipe members laid in two structural elements whose connection end faces can displace relatively to each other, between the connection end faces to make the two pipe members communicate. It comprises a fixed unit (30) fixedly embedded into the connection end face of one of the structural elements and a movable unit (50) supported by the fixed unit so as to be movable along the connection end face. The pipe member in the structural element is connected to the fixed unit, and the pipe member in the other structural element is connected to the movable element. The two pipe members communicate in the fixed unit.

Abstract: An exhaust elbow (1) is provided with a single exhaust outlet (2) with an outlet mounting flange (3) and at least two exhaust inlets (4, 5, 6) with an inlet mounting flange (7) for fastening on the engine block of a motor vehicle. The exhaust guiding of the exhaust elbow (1) between the inlet mounting flange (7) and the outlet mounting flange (3) is formed by a single-walled sheet metal hood (8) forming a collection line. The sheet metal hood (8) surrounds all exhaust inlets (4, 5, 6) together, without individual pipes being formed. Such a simple sheet metal elbow can be manufactured at a low cost and with low weight and nevertheless has sufficient ability to function, is dimensionally stable and can be used in a versatile manner.

Abstract: A metallic press fitting element for providing a non-detachable, tight joint of pipes includes a main body which is defined by a longitudinal axis. The main body is comprised of a radially outwardly projecting bead area at an entry side of a pipe to be inserted, a first cylindrical portion extending inwardly, at a distance to the entry side, of the bead area and connected thereto via a slanted transition, and a second cylindrical portion extending inwardly of the first cylindrical portion at formation of a stop surface for the pipe being inserted. The bead area terminates in a straight end portion which extends perpendicular to the longitudinal axis in a radial direction and has a terminal end which bounds a circular opening.

Abstract: A duct assembly made from multiple duct sections for transporting pressurized fluid therethrough which can be formed simply by laborers at a building site or elsewhere and has a strong joint resistant to leakage. The joint rigidizes each duct section and the duct assembly, permitting duct assemblies including a greater number of joined duct sections to be put together and lifted into place The joint is formed by passing fasteners through a corner flange connection member associated with one duct section, through integral flanges of the one duct section and other duct section arranged in end-to-end relation with the one duct section, and through a corner flange connection member associated with the other duct section. The act of installing the fastener tightly pulls together the integral flanges and makes and integral connection between them.

Abstract: An elastomeric gripping element is supported and mounted by a housing and is configured to have an interference fit under normal conditions with the surface of the object to be gripped. The housing and the surface to be gripped are separated by a gap. For gripping mating with the surface, the elastomeric gripping element is initially stretched by operative means in the housing element in an axial direction parallel to the generating element of the comating surface to be gripped, with an attendant reduction in its cross-sectional thickness perpendicular to the direction of stretch. In this manner, the gripping element interference with the comating surface of the object to be gripped is minimized or eliminated for installation. When positioning for the installation mating is accomplished, the gripping element tension is selectively released, permitting the gripping element to attempt to return to an unstretched position and thereby to assume a preloaded position against the comating surface.

Abstract: An anti-rotation arrangement for a detection device assembly used in a fire suppression system. The anti-rotation arrangement comprises an adapter secured to the housing of the detection device, a locking collar freely rotatable between the adapter and housing, and a union engageable to the locking collar and a T-fitting of a fluid conduit for connecting the detection device assembly to the T-fitting. Both the union adapter and union include radial teeth formed about the outer circumference of each component which interlock and mate when the union is securely, fully engaged to the locking collar during connection of the detection device assembly to the fluid conduit. The interaction of the radial teeth effectively prevents rotation of the detection device assembly once the assembly is engaged to the T-fitting of the fluid conduit.

Abstract: A spirally corrugated pipe elbow according to the present invention is constructed in such a manner that after a bend forming portion of a pipe body P having a given length and including a spirally corrugated pipe wall 1, with a partial portion a of the pipe wall 1 existing in the peripheral direction of the pipe body P left uncut, is cut and removed from the pipe body P in the form of a cut portion having a substantially V-like shape when it is viewed from the side surface side thereof, the thus obtained two cut surfaces are then bent and contacted with each other with the uncut pipe wall portion a set on the large diameter side, and the thus contacted portions t are connected together in a watertight manner using connecting material m. Accordingly, it is possible to provide an elbow having a structure free from the above water leakage and a method capable of manufacturing such elbow easily and quickly.

Abstract: The roots of the box threads in a drill collar or heavyweight drill pipe are configured to reduce the connection stresses encountered during drilling and makeup of the connection. The thread root design in the box reduces fatigue damage caused by makeup torque and cyclic stressing of the engaged drill string connection as it is rotated around curved sections of the well bore. A conventional V-type thread form in the box is provided with an enlarged root radius having its center point offset from the centerline of the opposing thread flanks. The load flank of the thread tangentially engages the arc of the root. The stab flank of the thread is intersected by the enlarged root radius extending to a flat intersecting surface that may extend as far up as the thread pitch diameter.

Abstract: A method is provided for rotationally attaching a connection fitting with an opposing surface by screwing the fitting into the opposing surface by threads on an outer surface of the fitting body. The connection fitting is formed by at least one seal manufactured together with the fitting body in an injection molding process to form a multi-component plastic part in which the fitting body is made of a hard plastic component and the seal is made of a soft plastic component, wherein the components are of a kind which do not adhere to one another. The seal is secured in an axial direction on the fitting body in a form-fit manner, but during the rotational attachment step the seal is rotatable relative to the fitting body in a peripheral direction.

Abstract: A water pipe joint includes a main body, a control sleeve, and an elastic element. The main body is provided with a plurality of expansion holes and receiving slots. The elastic element is disposed in a receiving gap of the main body. The control sleeve is provided with a plurality of retaining blocks and resilient pieces. The control sleeve is joined with the main body such that the retaining blocks of the control sleeve are slidably received in the receiving slots of the main body, and such that the retaining blocks of the control sleeve are acted on by the elastic element and the resilient piece to extend out of the expansion holes of the main body, so as to be detachably engaged with a water discharging connector.

Abstract: A fluid coupling having an outer housing with an internal bore, an O-ring fitted within the bore, a spacer bushing fitted against the O-ring, a gripper ring fitted against the axially outer side of the spacer ring, the gripper ring having axially and radially inwardly protruding circumferentially spaced gripping teeth, the teeth arranged for providing a twist when subjected to simultaneous rearward axial and rotational forces, and an end bushing holding the gripper ring, spacer bushing, and O-ring within the outer housing.

Abstract: A pipe coupling includes a housing and a conical split ring which is compressed to firmly clamp a pipe received within the housing. The opposite ends of the split ring defining the split are laterally offset from each other such as to permit the split ring to be compressed to substantially decrease its internal diameter, by the offset ends moving in overlapping relation to each other, thereby enabling the split ring to clamp pipes having a wide range of outer diameters.

Abstract: A mechanical coupling adapted for engagement using a key device. The coupling including first and second assemblies. The first assembly includes a latching body having a key hole, a coupling nut having an interior threaded portion and a toothed end portion, a receptacle body having an exterior threaded portion in constant threaded engagement with the interior threaded portion, and a first latch connected to the receptacle body. The second assembly includes a second latch and is adapted to engage the first assembly. The engagement of the first and second assemblies is accomplished by rotating a key device inserted in the key hole and meshing with the toothed end portion.

Abstract: A connector (10) for flexible pipes, particularly for use in cooling or air-conditioning systems for motor vehicles, comprises a hollow main body including a coupling element (13) for a flexible pipe, the coupling element having at least one gripping tooth (16a, 16b) for cooperating with clamping means (6) to grip a flexible pipe (14) when the connector is in the condition of use. The connector comprises at least one sealing ring (17) having a substantially cylindrical inside wall (18) and a shaped, preferably arcuate, outside wall (19). The sealing ring (17) exhibits resilient behaviour in a radial direction and is compressed radially, when the connector (10) is in the condition of use, by the flexible pipe (14) which is fitted and clamped on the coupling element (13) by the clamping means (6).

Abstract: A fluid line with a filter insert. The fluid line is adapted for efficient, safe transfer of fluids for fueling of vehicles. The fluid line includes a tubular housing with a filter element positioned therein. The fluid line also includes a slide-over or threaded sleeve arranged on a housing of the fluid line. The sleeve is mounted such that it can be readily moved for exchanging the filter element.