Abstract: A high pressure plastic pipe coupling in which a formed in situ annular wedge converts axial loads on a flanged ring to compressive hoop stress loads on a reinforced resin pipe.

Abstract: A fixed cavity, integral bonded, flexible coupling for joining ferrule terminated tubing ends in an aircraft environment in which a clam shell coupling is spring loaded at its hinges so as to bias it toward an open configuration. The clam shell coupling latches in a closed configuration by means of a plurality of latch pawls engaging latch pins, with the latch pawls being spring-biased into engagement with the latch pins.

Abstract: A coupling for thin-walled tubing, such as aircraft fuel lines, wherein a bearing ridge and O-Ring groove are preformed at the open tube end and wherein a coupling body, retaining nut and anchor ring are engageable over said bearing ridge and groove, the anchor ring being reversibly visible for inspection and in the form of an expansible doublesided buttress disengageably installed over the tube and combined with the retaining nut to abutt the said bearing ridge and related to the coupling body so as to have anti-extrusion features with respect to the O-Ring seal subjected to internal fluid pressures.

Abstract: A coupling for tubular members in mechanically flexible fluid tight relation, and providing cooperative means permitting limited axial, angular, and radial misalignment, while maintaining fluid tight connection. The unique design of this coupling allows for accommodating the various misalignments with assurance of fluid tight connection in a straight forward, inexpensive manner. Optional features which provide for damping of vibrations from the fluid lines to the coupling and means opposing axial forces tending to separate the fluid lines connected by the coupling are also disclosed.

Abstract: There has been provided an armored beaded piping system, having a boot of corrosive resistant material adapted to shield the forward end of the armor from corrosives and to provide a protective end covering, which is grasped by a pipe coupler such that separation of the pipe system from the coupler is prevented upon inner pipe failure.

Abstract: A fluid-tight sealing apparatus for sealing a tube to a cylindrical surface while subjected to axial, rotational and angular misalignments comprising a metallic, resilient sealing member on the tube having a ring portion with a curved surface for contacting the cylindrical surface and for forming a fluid-tight seal by means of an interference fit therebetween. The cylindrical surface can be the interior surface of a bore with the sealing member including a frustoconical portion having the ring portion at the larger end thereof and fitting into the cylindrical bore. The cylindrical surface can be the exterior surface of a conduit with the sealing member including a frustoconical portion having the ring portion at the smaller end thereof and fitting around the cylindrical conduit.

Abstract: A pipe or conduit coupling assembly having a pair of confronting, fluid-conveying members, a longitudinally split coupler removably circumferentially surrounding the fluid-conveying members to limit displacement of the fluid-conveying members away from each other, and at least one electrically conductive spring metal jumper mounted exteriorly on the coupler to complete an electrical circuit between the fluid-conveying members. A special retainer and toggle clamp assembly extends circumferentially around the split sections of the coupler and has a special toggle clamp which is incapable of being improperly latched to releasably secure the split sections of the coupler in place. A special safety lock is provided to prevent inadvertent release of the toggle clamp.

Abstract: A device for non-rigid connection of two rigid cylindrical pipes comprises the combined use of flexible double-lipped gaskets and toroid flexible gaskets surrounding a bulb-shaped zone formed in one of the pipes. The device is particularly useful for fastening fragile tubes containing light emitters to metal reactors used for photochemical processes.

Abstract: A flexible joint for conduit includes inner and outer conduit members having telescoped end portions. The end portion on one member has a generally spherical surface portion facing toward the end portion of the other member and lying generally on the surface of a sphere having a sphere center intersecting the longitudinal axis of the one member. Sealing means extends from the other conduit member in sealing engagement with the spherical surface portion. Diagonally opposite pivot connections pivotally connect to the two members on a pivot axis which intersects the sphere center. The sealing means remains sealingly engaged with the spherical surface portion during limited pivotal movement of the two conduit members relative to one another about the pivot axis.