Abstract: There is disclosed a remotely operable, subsea wellhead connector for connecting the lower end of one wellhead member to the upper end of another wellhead member which is mounted in an upright position beneath the water surface, such connector including a tubular member adapted to be connected to the lower end of the one wellhead member so that it may be lowered therewith into end-to-end relation with the lower wellhead member, and a split lock ring having upper and lower locking teeth carried by the tubular member for radial movement together between an expanded position in which the upper teeth are generally opposite and spaced from grooves about the tubular member and the lower teeth are movable past the upper end of the lower wellhead member for disposal opposite and spaced from grooves thereabout, and a contracted position in which the upper and lower teeth thereof are in locking engagement with the grooves in the tubular member and lower wellhead member, respectively, when the tubular member has been lo

Abstract: There is disclosed apparatus for releasably connecting first and second tubular members in end-to-end relation including a split lock ring having first and second axially spaced locking teeth which are carried by the first member for radial movement together being expanded positions opposite from first and second locking grooves about the first and second members, respectively, and contracted positions in locking engagement with such grooves, and a cam ring which surrounds the lock ring for movement between a first position in which the lock ring is expanded and a second position in which the cam ring is slidable over follower means on the lock ring to wedge said lock ring into expanded position.

Abstract: A portable electric scrubber in which the drive shaft and gear assembly and drive motor are secured together in a fixed relationship by a one-piece gear case secured within a compartment defined between to halves of a housing. The output shaft includes integral, deflectable cantilever beams having ridges for engaging a central hole in an attachment. The housing is sealed by a one-piece seal which seals between the housing halves, around the output shaft and over an actuation button.

Abstract: A plastic pipe element comprises an inner one-piece liner of thermoplastic material. The liner is formed so as to include at least one cylindrical leg having a free outer end and inner end disposed intermediate opposite ends of the liner. At least one pipe section is formed comprising an inner thermoplastic lining and a fiber reinforced outer layer. That pipe section is bonded to an outer surface of the cylindrical leg such that an inner end edge of the pipe section overlies the liner. A sheet of fiber reinforced thermosetting resin molding compound is applied externally around the inner end edge of the pipe section and is subjected to pressure and heat to form the sheet into a desired shape. Thereafter, the sheet is allowed to harden. Elements formed in this manner include a T-fitting, a pipe flange, a 90.degree. fitting, a reducer fitting, a 45.degree. fitting, and a pipe cap.

Abstract: An irrigation system includes an elongate pipe having a plurality of water discharge ports spaced along its length. Each port is individually adjustable, such as by means of a collar about the pipe, to deliver water in a straight stream, spray, trickle, drip, or to be closed completely so that no water is delivered through a particular port. The system is preferably made up of a number of individual lengths of pipe adapted to be easily joined together to give the desired total length.

Abstract: Disclosed are apparatus and methods for securing together pipe sections by cold forging the inside end of one or more pipe sections outwardly into a surrounding collar. In the detailed description of an exemplary application, the invention is disclosed for use in connecting together the ends of subsea pipelines, J-tubes and other underwater conduits.

Abstract: A concentric insulating tubular conduit member for use in forming a conduit string, such as a tubing string in a subterranean well, is disclosed. Each individual concentric conduit comprises an outer tubing and an outwardly flared inner tubing welded to the outer tubing at the end of the flared section. The inner tubing member is formed from an initially straight cylindrical member having enlarged ends and, when outwardly flared, the flared ends, although stretched, have a thickness at least equal to the nominal thickness of the inner tubular member. Insulation may be contained within the annular cavity between the inner and outer tubing members and between inner and outer coupling members at the juncture between adjacent tubing sections.

Abstract: A multiple laminate comprises at least one laminate which is tapered at one or both ends to provide a laminate joint structure having a coupling tensile strength greater than the laminate interlaminar shear strength. The laminate joint structure contains at least one tapered laminate ply support structure containing continuous filament strands oriented parallel to the coupling load direction. The tubular laminate form of the tapered end laminate joint structure finds particular application to mechanically joined structures such as pipe and trusses.The method and apparatus for making the laminate in the form of a desired composite structure comprises winding a first ply of circumferentially oriented continuous filament strands upon a mandrel and forming the ends of the first ply to have sufficient thickness to provide an inwardly tapered conical shaped exterior surface.

Abstract: A sleeve is used in a tubing joint assembly, usually an inner sleeve, with a tube telescoped over this inner sleeve. An outer sleeve may optionally be telescoped over the tube and the entire assembly. One of the sleeves has a lateral shoulder transverse to the axis of the sleeve and with this shoulder terminating in a sharp angled peripheral rib. The outer sleeve is inwardly compressed by two dies which have interdigitated teeth. This compresses the outer sleeve, where used, and compresses the tube at the peripheral ribs of the sleeve. The interdigitated teeth on the dies assure complete compression all the way around the periphery, between the tube and the sleeve with a lateral shoulder being formed on the tube to act against the lateral shoulder on the sleeve and thus longitudinally retain together these parts. Also a fluid pressure tight seal is established primarily at the sharp angled peripheral rib and its junction with the facing wall of the tube.

Abstract: A pipe coupling for application to plain end pipe and pipe pile by a driving force. It provides much greater tensile strength than the double sleeve type of pipe coupling disclosed and claimed in my U.S. Pat. No. 4,053,247 in that it provides greater strength under tension. In one embodiment, a pair of tapered wedge rings are disposed in spaced coaxial relation within an outer cylindrical sleeve having corresponding tapered inner surfaces to provide tapered annular sockets into which pipe sections may be forced or driven to expand the diameter of the pipe. An annular shoulder on the sleeve forms the bottom of the annular sockets. Under tension, the tapered rings wedge the pipe against the outer sleeve to resist axial removal of the pipe from the coupling socket. In another embodiment, the tapered wedge rings are disposed in coaxial relation outside the cylindrical sleeve to form annular tapered sockets which serve to reduce the diameter of the pipe as it is driven into the socket.

Abstract: A joint for jointing the ends of two pipes, particularly lined pipes, in which a radial resilient portion extends between the two ends of the pipes, two oppositely extending axial portions at the radial inner part of the radial portion each engage within the interior of one of the two pipe ends. Construction of the joint is such that the axially extending portions of the joint are urged radially outwardly against the inner surface of the two pipe ends as the two pipe ends are drawn axially towards one another.

Abstract: Disclosed herein is a device for joining together separated arteries, lumen or the like. The device includes an innertube of substantially cylindrical configuration having end portions which taper somewhat and terminate at opposed extremities in a fine feathered end. Attached to the center cylindrical portion, is a sleeve grip mechanism which extends over the tapered portions as well so that when an artery is slidably disposed over the tapered portions of the innertube, the sleeve grip can wrap around the central cylindrical portion and the tapering portion, and opposed ends of the sleeve grip can be fastened together to securely affix the dissociated artery to the central cylindrical portion thereby repairing the artery and allowing the flow of blood to recommence therethrough.

Abstract: An improvement in an accessory for a garden hose and the like in which an end of the hose is to be connected with a supplementary fitting characterized by a centerpiece adapted to sealingly receive the end of the hose, a gripper for moving longitudinally into gripping relationship with the hose, a turnbuckle for drawing the gripper into gripping relationship with the hose responsive to relative rotational movement of the turnbuckle with respect to the gripper and rotation prevention means to prevent relative rotational movement between the gripper and the centerpiece.

Abstract: An inner sleeve is used in a tubing joint assembly with this inner sleeve having a lateral shoulder generally perpendicular to the axis of the sleeve and with this shoulder terminating in a sharp angled peripheral rib. A tube is telescoped over this inner sleeve. An outer sleeve may optionally be telescoped over the tube and the entire assembly inwardly compressed by two dies which have interdigitated teeth. This compresses the outer sleeve, where used, and compresses the tube onto the peripheral ribs of the inner sleeve. The interdigitated teeth on the dies assure complete compression all the way around the periphery of the tube onto the inner sleeve with a lateral shoulder being formed on the tube to act against the lateral shoulder on the inner sleeve and thus longitudinally retain together these parts. Also a fluid pressure tight seal is established primarily at the sharp angled peripheral rib and its junction with the inner wall of the tube.

Abstract: Disclosed are apparatus and methods for securing together pipe sections by cold forging the inside end of one or more pipe sections outwardly into a surrounding collar. In the detailed description of an exemplary application, the invention is disclosed for use in connecting together the ends of subsea pipelines, J-tubes and other underwater conduits.

Abstract: Coupling sleeve for the interconnection of hollow prismatic objects from sheet material, such as channel segments of an air heating device, said sleeve having a U- or W-shaped cross section, the limbs of this cross section having different length for facilitating the insertion of the edge of said prismatic objects into said coupling sleeve.

Abstract: The specification discloses a double sleeve coupler for coupling coaxially juxtaposed plain end steel pipe sections or pipe pile in metal-to-metal leakproof contact and at the same time providing a high strength connection under tension. A number of forms of couplers are disclosed, all essentially having two rigid metallic cylindrical sleeves of different diameter arranged coaxially one within the other with an annular space or socket therebetween at each end into which the wall of the plain end pipe or pipe pile may be driven as by hammering or by a pile driving hammer. The annular space between the sleeves expands radially outwardly in diameter toward the center of the coupler to a larger cylindrical diameter adjacent the center of the coupler. The length of the expanded inner section of the socket exceeds the thickness of the annular space forming the socket.