Abstract: High localized loading, galling, and high torque forces have been generally eliminated or greatly reduced in a two ferrule tube fitting assembly through suitable modification of the rear ferrule so as to redirect the reaction forces acting between the front ferrule and the drive nut. The rear ferrule has a cylindrical interior wall that closely surrounds the tube end and is provided on the interior cylindrical wall with a circumferentially continuous radial recess that is located between the nose and rear wall of the rear ferrule. The rear ferrule also has a radially external wall that is substantially conical and additionally shaped to extend radially outward toward the enlarged diameter portion or flange of the rear ferrule. The rear ferrule further includes a contoured face on the rear driven surface of the ferrule that engages the drive surface of the drive nut.

Abstract: A two-part connector (1) is provided for use in connecting and disconnecting fluid carrying conduits. The connector comprises lower and upper parts (2, 3) each having four fluid carrying duct (15) therethrough, and a valve member (17) for each duct. Each duct in the lower part (2) is aligned with its respective duct in the upper part (3) when the two connector parts are connected together. The connector has clamps (24) for retaining the lower and upper parts (2, 3) together in sealing engagement. The clamps are mounted on the upper connector part (3) and are pivotable thereabout. Hydraulic pistons are used to move the clamps, the clamps being located in a first position pivoted away from the connector whilst the lower and upper parts (2, 3) are being aligned relative to each other.

Abstract: The present invention relates to a riser pipe element comprising a main tube (5), connection means (2) at both ends, at least one auxiliary pipe length (4) arranged substantially parallel to the tube. The auxiliary pipe length is secured at both ends to the connection means of the main tube so that the longitudinal mechanical stresses to which the connection means are subjected are distributed in the tube and in the pipe.

Abstract: A liquid tight connector for connecting non-metallic or metallic conduit to panels or similar devices. The connector is an effort and time saving device that allows connection of conduit to panels without the need to disassemble a portion of the connector and then reassemble again as in prior art devices. The connector allows an installer to simply push a conduit into one end of the connector and push the opposite end of the connector into an aperture in a panel. Liquid tight seals are created between the conduit and the connector and between the connector and the panel. By proper selection of the material of construction, the connector may be built for use with either metallic or non-metallic conduit.

Abstract: A connector assembly for a heating, ventilating, air conditioning system includes a take-off pipe and a collar. The take-off pipe is cylindrical in shape and has a number or outwardly extending resilient tabs and grooved outer wall segments. The collar is cylindrically sized to mate with the take-off pipe, and has a number of protrusions extending from an inner wall. The take-off pipe is first inserted into an opening in a main duct, with the resilient tabs retaining the take-off pipe in place. The collar slides over the body with the protrusions engaging one of the grooves of the wall segments to retain the collar in place. Rotation of the collar disengages the protrusions from the grooves for collar removal.

Abstract: A stabilized mounting assembly (15) and method for sensing pressure in a conduit, such as a pipeline, is disclosed wherein the load on the NPT threaded taps (31) is reduced and transferred from the NTP threads.

Abstract: A method of connecting a resin hose to a metal pipe comprising the steps of: forming a fluororubber coating layer on an inner peripheral surface of the resin hose; forming a lubricating layer of a fluorine-containing lubricant on an inner peripheral surface of the fluororubber coating layer; and inserting an end portion of the metal pipe into an end portion of the resin hose formed with the lubricating layer. Fluorine atoms in a fluororubber molecular skeleton are hydrogen-bonded to hydroxyl groups introduced in a metal of the metal pipe and therefore the adhesion between the resin hose and the metal pipe is enhanced for improvement of the sealing property. Further, the lubricating layer facilitates the insertion of the metal pipe into the resin hose for the connection therebetween.

Abstract: A hydraulic coupling that is used for connecting hydraulic tubular lines includes a male plug which will mate with a standard tube end flare. The male plug has a rounded end that will provide for a line contact with the interior surface of the standard flare. The rounded end of the plug is joined to the main portion of the male plug body through a wall that is controlled in cross-sectional size so that the outer end will deflect as the male plug is tightened into place. This will provide a resilient loading along a line of contact to insure that the seal is maintained even if there is slight axial movement between the flare and the male plug.

Abstract: A plastic fitting couples a section of tubing with a concave flared end to a fitting body. In a preferred embodiment, the flared tube has an expanded s-shape in the cross-section and the plastic fitting generally comprises a fitting body and a fitting nut. The fitting body includes an internal nose section having a curvilinear sidewall and a cylindrical surface that have been preformed to substantially match in shape the flare of the tubing. In a preferred embodiment, the nut has external threads that engage internal threads on the fitting body. The fitting nut is threadably coupled to the fitting body and includes a flare-engaging collar which secures the flared end of the tubing to the fitting body through a circumferential point contact. Additional securement of the tubing is provided by an axially inset annular recess, proximate the tapered nose section, which defines a seat sized to receive the end edge of the tube.

Abstract: A windshield wiper, in which an element of the frame of the wiper blade is articulated on the end of a wiper arm by a connector that is articulated on the frame. The connector includes a substantially inverted U-shaped front body which overlaps onto the center part of the hinge of the frame, such that the longitudinally sliding connector is accommodated in the front end of the arm. The connector includes a lock mechanism that locks in a longitudinally direction in relation to the arm. The connector also includes a retaining rod extending vertically with clearance through a hole that is dead center with the center part of the hinge of the frame element.

Abstract: A screw-threaded joint for a pipe has a male portion (10) and a female portion (12), having complementary screw threads (11, 13). The male thread (11) extends to a position adjacent a complementary stop shoulder (18) on the female portion (12) having a recess of conical cross-section having a rounded apex. The recess is adapted to receive a head portion having a conical cross-section with a rounded apex, the radius of curvature of which is greater than that of the recess's apex providing a seal with improved stress dispersal properties upon application of torque. The wall (33) of the cone's in-use outwardly facing surface on the male portion (10) can subtend an angle of from 28-36° to the longitudinal axis of the pipe. The corresponding cone wall on the female portion can subtend an angle of from 28-38° with the same axis. The male portion (10) can comprise a second stress dispersing surface (41), concave in shape.

Abstract: A coupling comprising a tubular inner member (9) defining a socket dimensioned to receive a pipe to be connected to the coupling. The inner member (9) is positioned within a tubular body (1) to define a closed annular chamber, and an inlet (2) is provided tough the body so as to communicate with the chamber. In use, pressurised fluid such as a setting resin is introduced through the inlet (2) into the chamber. The pressure of the introduced fluid is sufficient to cause the radially inwards deformation of the tubular inner member (9) so as to grip the pipe (13, 14) which is received within the socket. Pressure may be applied up to a predetermined limit, or until seal failure.

Abstract: A pipe elbow is provided having two parts, each part having an arcuate segment and a linking member for connecting to a run of standard pipe. The arcuate segment of the first part fits into the arcuate segment of the second part. By severing a portion of the arcuate segment of the first part at an angle needed for a specific run of pipe and inserting it into the arcuate segment of the second part, the assembled elbow will conform to the required angle. In addition, the arcuate segment of the first part has an inner aspect which is provided with an extended curved region which extends to the collar. The second part is provided with a lip which fits conformingly with the extended curved region of the first part in order to meet industry standards for minimum overlap of mating parts, even at very obtuse angles.

Abstract: A device for coupling multiple connectors, comprising two connector supporting plates, one fixed and one movable, and two threaded members which are supported by the two plates; one of the members has a combined rotary and translatory motion for the coupling and uncoupling of the plates; the member provided with combined rotary and translatory motion is associated with a fluid-actuated actuator for the approach and spacing of the threaded members.

Abstract: A quick connector for establishing a connection between a flexible tube and an interior chamber of a vessel. The vessel has a wall structure through which a mounting bore extends. A canister assembly associated with the quick connector includes a housing is adapted for installation in the mounting bore, a retainer coupled to the housing that adapted to accept and retain a port connector of the hose therein, and a spring clip for coupling the housing to the wall structure. Flanged ends of the spring clip are retained in, and project outwardly from, corresponding apertures formed through a leading end of the housing. Upon installation of the housing into the mounting bore, the end flanges are deflected inwardly until the leading end of the housing extends beyond the mounting bore. Then the flanged ends return to their expanded condition, thereby coupling the canister assembly to the vessel.

Abstract: An accessory component for piping, such as a valve, filter or the like, comprising a hollow body that can be connected to sections of piping and is provided with elements for coupling the component to a supporting structure, the coupling elements being formed on at least one outer wall of the body.

Abstract: The present invention relates to a joint structure between a filtration apparatus and a filtration membrane module, which is characterized in that a cap with a pipe is disposed on at least one end of a filtration membrane module using a cap nut capable of being screwed into a thread groove formed on the outer periphery of the end thereof, said pipe of the cap being inserted into and pressed against one end of a joint capable of controlling connection length at both ends, and a branch pipe of a header pipe of the filtration apparatus being inserted into and pressed against the other end of said joint. According to the present invention, there can be obtained such a joint structure that requires fewer components for connection, has a simple construction at connections, and does not cause any leakage.

Abstract: A fencing system having rails, slats and posts formed from pultruded fiberglass has several advantageous features. Lightweight fiberglass components are very strong and will not rust like metal fencing and do not require frequent maintenance like wood fencing. Pultruded fiberglass components are easy to manufacture and transport and the finished fence can be assembled using conventional fastners. Fence components are designed to be light weight while having a substantial resistance to bending forces.

Abstract: A radially offset valve is mounted in a bypass passage that extends through two movable members that are jointly moved during coupling between two couplers. The valve is moved from a closed position in which the flow of a pressurized fluid through a flow channel of an outer tubular body is prevented from being discharged through a discharge passage, to an open position in which the fluid is permitted to flow to the discharge passage, thereby resisting fluid leakage to the environment during coupling.

Abstract: A quick-connect coupling for interconnecting only matching fluid delivery and supply lines while preventing the inadvertent connection of mismatched lines where there are matched and mismatched delivery and supply lines. The coupling includes first and second coupling members that are releasably slidably, axially interfitted with their passageways in fluid communication. In the disclosed embodiment of a coupling for use in a chemical extraction system, one coupling member is a male member connected to the supply lines in the typical fifty gallon drum and the other coupling member is a female coupling member connected to the delivery lines. Key coding elements on the coupling members are movable into matched interengagement when the supply and delivery lines are matched but are precluded from moving into matched interengagement when the lines are mismatched.