Abstract: A method for effecting a repair and/or strengthening of a pipe. The method comprises cleaning an affected area of a surface of the pipe to provide a cleaned surface of the pipe surface for an area requiring repair; applying a continuous strip around the pipe from a portion prior to the effected area and allowing the continuous strip to extend to a portion after the affected area. The continuous strip forms a spiral sleeve spaced from the pipe surface to provide an annular chamber between the pipe surface and the spiral sleeve.

Abstract: A system for joining tubular members comprising: a U-shaped joining member, with a first leg, a bottom of the U in communication with the first leg, and a second leg in communication with the bottom of the U, and wherein the first leg and second legs have a taper such that the cross-sectional surface area of the first leg is at a minimum at generally the far end of the first and second legs, and the cross-sectional surface is at a maximum at generally the beginning end of the first and second legs; an anchor member configured to fit generally in the bottom of the U; a first tubular member configured to fit abutting the anchor member, and between the first and second legs; a wire made of anisotropic material configured to be wound about the first leg, second leg, and a portion of the first tubular member located between the first leg and second leg; a second tubular member configured to structurally attach to the first tubular member, U-shaped joining member, anchor member, and anisotropic material; a pluralit

Abstract: A method for mounting a soft member on a longitudinal member by pressing the soft member against the longitudinal member by a roller. The roller is rotated using a servomotor so that the peripheral speed (V2) of the pressing surface of the roller, which forms the outer peripheral surface of the roller, is equal to a transfer speed (V1) at which the roller is transferred along the longitudinal member or the peripheral speed is larger by 10% max. than the transfer speed (V1) partly in a roller transfer route. The soft member is pulled back in the opposite direction of the roller transfer direction by the rotating force of the roller to prevent the soft member from being loosened.

Abstract: A moving tracks dozer equalizer link elastomeric bearing assembly including a concentric outer member operable for securely engaging a equalizer link bore structure associated with a first end portion of an equalizer link structural member, wherein the concentric outer member is disposed substantially within the equalizer link bore structure. The dozer equalizer link elastomeric bearing assembly also including a concentric inner member operable for securely engaging a pin structure associated with a second moving track roller frame assembly structural member, wherein the concentric inner member is disposed substantially within the concentric outer member.

Abstract: The present invention generally relates to flexible hose articles and methods. Some embodiments include hoses that can be reversibly bent and/or shaped. Furthermore, some embodiments can comprise methods for making and/or using such hose articles.

Abstract: A method for installing a locking retainer in a tube to maintain internal components within the tube under compression comprising the steps of: a) providing an elongated retainer spring having large and small diameter sections with the large diameter section of a size for an interference fit with the interior diameter of the tube and the smaller diameter section of a size having a clearance with the interior diameter of the tube; b) inserting a smaller diameter section of an elongated tool into the larger diameter section of the elongated retainer spring; c) engaging a transition between the smaller and larger diameter sections of the tool against a transition between the larger and smaller diameter sections of the elongated retainer spring; d) inserting the combined tool and retainer spring into an open end of the tube containing internal components with an end of the smaller diameter section of the retainer spring entering the tube first; e) advancing the combined tool and retainer spring within the tube to

Abstract: A shockproof spindle includes a spindle inserted into an elastomer having a compressible structure, and a sleeve having a hollow cylinder, sequentially. The sleeve caps the elastomer while the elastomer is pressed on the top of the base fixed at the bottom end the spindle to expose the chute of the spindle. The ball is then disposed in the chute of the spindle and the chute of the sleeve. After the sleeve is released to return the elastomer to its normal state, the sleeve, the elastomer and the spindle are held together by the ball which is retained in the chutes of the spindle and the sleeve. A C-shaped plate is then inserted between the elastomer and the base.

Abstract: A method for producing a piezoelectric actuator (8) with a multilayer structure of layers of a piezoelectric sheet (3, 4), and with inner electrodes disposed between them, is proposed, in which the individual layers are formed of two continuous strands (3, 4) of the piezoelectric sheet, and the two strands (3, 4) are wound over one another in the form of a double helix to form a hollow-cylindrical stack, thereby enclosing the inner electrode between them. The two strands (3, 5) are preferably guided over deflection rollers (5, 6, 7) in such a way that the overlays of the two strands (3, 4) on the already-wound stack are offset from one another by a predetermined angular amount.

Abstract: A single wire cable conduit provided having a rhomboid-shaped wire including approximately parallel sides, a rounded first end, and a tapered second end. The wire is serpentine wound into a hollow tubular body having a plurality of approximately parallel adjoining wire loops. The wire loops each have the rounded first end positioned in continuous displaceable contact with the tapered second end of an adjacent loop. As the hollow tubular body deflects, each wire loop displaces relative to its adjacent wire loop. Each rounded first end is able to rotate and translate along the abutting tapered second end reducing both conduit bending resistance and potential friction damage to either a sleeve or cable and to a jacket covering the hollow tubular body.

Abstract: A continuous congruent length of stranded flexible Drilling Energy Transfer Member (DETM) constructed to transfer and balance action/reaction forces between an energy source and a working tip such that torque, tensile, compression and self supporting forces are constrained while the DETM operates in multiple positions of tight curvature and straight run and while translating into and out of such extremes, the balance being maintained between the extensor/torque outer configuration and an inner tensile/compressor configuration.

Abstract: An improved balloon catheter is disclosed which is comprised of two jacketed spring coils placed end-to-end and joined by a linking element which contains a lumen communicating between the inflation lumens formed by the two spring coils. A side port entry to a guidewire lumen, which extends through the distal coil to the distal end of the catheter, is located in the transition region formed by the linking element. The linking element may include two polyimide tubes or may be a multilumen insert. The catheter is stiffened by a core wire which is bonded directly to the spring coils. A catheter comprised of a single spring coil with a side port entry in the coil is also disclosed, and a method and apparatus for crimping the coil to create the entry.

Abstract: The invention provides a method for making an organism deposit-inhibition pipe, which excels in corrosion resistance, dispenses with maintenance work, and offers no toxicity problems. A thin sheet comprising a copper alloy is wound spirally around a round bar and inserted into a resin pipe made up of an electrical insulating material. And the round bar is taken out. The obtained pipe has an inner wall which is covered with the copper thin sheet. The copper alloy has a Be content of 0.2 to 2.8% by weight, and is selected from, e.g., Be--Cu, Be--Co--Cu, Be--Co--Si--Cu and Be--Ni--Cu alloys. The beryllium-copper alloy has a remarkable antifouling effect and provides a continued liberation of copper ions.

Abstract: A method of making a multi-layer tube includes the steps of pre-heating two elongate metal strips and bending each to a substantially arcuate curvature. Each strip is then wound helically with abutting edges, one strip being closely concentrically wound around and axially offset with respect to the other, so that the strips define a cylindrical tube. A synthetic resin is applied between the strips and to the interior of the tube during the winding step and is then pre-cured. Thereafter, a coating of the synthetic resin is applied to the exterior of the tube and then all of the synthetic resin is fully cured.