B29D23/00

Mould equipment for pipeline section coating and methods for coating of pipeline sections with moulds

A mold for coating a pipeline section with molten coating material from an injection molding machine, wherein the mold comprises a shell of impervious material reinforced by an exoskeleton of non-distensible material. An assembly for supporting a mold comprising a plurality of mutually separable shell bodies for coating a pipeline section, wherein the assembly comprises motorized opening and closing of the shell bodies in a straight line. An assembly for supporting a bent pipeline section wherein the assembly comprises a base and a pair of arms extending from the base, wherein each arm comprises a respective clamping collar for clamping a bent pipe section between the arms. A vehicle for induction heating a bent pipeline section, wherein the vehicle comprises: a helical induction coil; and wheels arranged to guide movement of both ends of the induction coil through a tubular inside face of a bent pipeline section.

Mould equipment for pipeline section coating and methods for coating of pipeline sections with moulds

A mold for coating a pipeline section with molten coating material from an injection molding machine, wherein the mold comprises a shell of impervious material reinforced by an exoskeleton of non-distensible material. An assembly for supporting a mold comprising a plurality of mutually separable shell bodies for coating a pipeline section, wherein the assembly comprises motorized opening and closing of the shell bodies in a straight line. An assembly for supporting a bent pipeline section wherein the assembly comprises a base and a pair of arms extending from the base, wherein each arm comprises a respective clamping collar for clamping a bent pipe section between the arms. A vehicle for induction heating a bent pipeline section, wherein the vehicle comprises: a helical induction coil; and wheels arranged to guide movement of both ends of the induction coil through a tubular inside face of a bent pipeline section.

CATHETER TUBE

A catheter that has a catheter tube everting inside-out during the process of catheterization is disclosed. The catheter tube has a plurality of longitudinal protrusions extending from the first end of the catheter tube through at least a portion of the catheter tube, and forming an angle of 0 degrees to 45 degrees with respect to the longitudinal axis of the catheter tube and facing radially inwards, and provides for dilating a circumference of the catheter tube upon everting the catheter tube inside-out from the first end of the catheter tube.

CATHETER TUBE

A catheter that has a catheter tube everting inside-out during the process of catheterization is disclosed. The catheter tube has a plurality of longitudinal protrusions extending from the first end of the catheter tube through at least a portion of the catheter tube, and forming an angle of 0 degrees to 45 degrees with respect to the longitudinal axis of the catheter tube and facing radially inwards, and provides for dilating a circumference of the catheter tube upon everting the catheter tube inside-out from the first end of the catheter tube.

Flexible Endoscope and Methods of Making Same
20220031146 · 2022-02-03 ·

An endoscope includes a handle connected to a flexible, steerable, kink-resistant insertion tube. An endoscope insertion tube may include a shaft, a lower durometer section proximate to a distal end of the shaft, and a higher durometer section positioned between the lower durometer section and a medium durometer section. The endoscope insertion tube may further include a fourth thermoplastic laminate section proximate to a proximal end of the shaft and having a higher durometer. A method of making an endoscope insertion tube may include inserting a mandrel with one, two, or more lateral slots and a liner into a shaft, wherein the liner is positioned between the mandrel and the shaft, bonding a bonded portion of the liner to an inner surface of the shaft, separating other portion(s) of the liner from the shaft, and inserting a first deflection wire in a gap between the shaft and the unbonded portion(s) of the liner.

Method for producing a tubular hollow body, and tubular hollow body

The invention relates to a method for producing a tubular hollow body (1) with at least three pipe openings, partly or completely consisting of plastics material. It is provided that a lost core pipe (9), which has a connection opening (13, 14) on each of its ends and has at least one docking opening (11) along its length, is produced, that the core pipe (9) is introduced into a cavity of a mold, with two non-lost core pieces (17, 18) being arranged with one of their ends (3, 4) respectively against the connection openings (13, 14) in a sealing manner and a non-lost core part (19) being arranged with one end against the docking opening (11) in a sealing manner, in that plastics material (25) is then introduced into the mold cavity to encapsulate the core pipe (9), the core pieces (17, 18) and the core part (19) and that, once the plastics material (25) has cured, the core pieces (17, 18) and the core part (19) are withdrawn from the hollow body (1) created. The invention also relates to a corresponding hollow body (1).

Methods and Apparatus for Fabricating Porous Three-Dimensional Tubular Scaffolds
20220266557 · 2022-08-25 ·

Disclosed herein are three-dimensional porous tubular scaffolds for cardiovascular, periphery vascular, nerve conduit, intestines, bile conduct, urinary tract, and bone repair/reconstruction applications, and methods and apparatus for making the same.

METHOD FOR MANUFACTURING A HOUSING FOR A TURBINE ENGINE AND TOOLS FOR THE IMPLEMENTATION THEREOF

A housing for an aircraft turbine engine includes an annular body extending around an axis A. The body includes a securing flange extending radially outwards at each of the axial ends thereof, and an abradable layer arranged inside the body. A method for manufacturing the housing includes a step b) of bonding the layer to the first surface, during which the housing is heated and compressed by a system present at least partially inside the housing. The method further includes, prior to step b), a step a) of mounting at least two tools between the flanges, each of the tools being located in a circumferential area outside the body so as to exert bearing forces in opposite axial directions on the flanges.

METHOD FOR MANUFACTURING A HOUSING FOR A TURBINE ENGINE AND TOOLS FOR THE IMPLEMENTATION THEREOF

A housing for an aircraft turbine engine includes an annular body extending around an axis A. The body includes a securing flange extending radially outwards at each of the axial ends thereof, and an abradable layer arranged inside the body. A method for manufacturing the housing includes a step b) of bonding the layer to the first surface, during which the housing is heated and compressed by a system present at least partially inside the housing. The method further includes, prior to step b), a step a) of mounting at least two tools between the flanges, each of the tools being located in a circumferential area outside the body so as to exert bearing forces in opposite axial directions on the flanges.

EXPANDABLE PIPE INCLUDING A LINER FOR RESTORING A CONDUIT

An expandable pipe for restoring a damaged pipe is provided. The expandable pipe includes a liner formed of thermoplastic polyurethane, and grout material applied to the exterior surface of the liner. The exterior surface includes a plurality of flared tips and grooves, and each groove is located between adjacent flared tips. The grout material is disposed on the flared tips and in the grooves of the liner. The method used to restore the damaged pipe includes clamping the liner with the grout material on a puller-sealer fixture having a U-shaped cross-section to prevent debris from entering the interior of the liner, and pulling the puller-sealer fixture and liner through the damaged pipe. The grout material expands in volume upon exposure to moisture, ultra violet radiation, heat, and/or ultrasonics, and fills cracks or other imperfections and voids along the interior surface of the conduit, caused by corrosion, erosion, or other circumstances.