A pipe adapter includes a first tubular element having a first portion, a second portion axially adjacent the first portion, and a securing portion adjacent an end of the second portion opposite the first portion, the second portion defining a socket; a second tubular element having a first portion and a second portion axially adjacent the first portion, the first portion defining a distal end sized for insertion into the socket and having a radially extending stop; an annular sealing member. The securing portion is formed integrally with the second portion of the first tubular element and has a flange portion contacting the stop to secure the second tubular element axially relative to the first tubular element while also allowing the second tubular element to rotate relative to the first tubular element.

An enclosure for an AC to DC adapter has a continuous and apparently seamless exterior surface. The enclosure includes a housing and a cap that are joined by a pair of weld joints. One weld is formed on an interior portion of the enclosure providing strength and one weld joint is formed on the exterior surface providing a seamless appearance for the enclosure.

An ultrasonic welding system and method for joining first and second thermoplastic parts includes least one energy director formed on at least one surface of the first thermoplastic part, with the energy director projecting from the surface of the first thermoplastic part toward an opposed surface of the second thermoplastic part. The distal end portion of the energy director has a curved or flat surface that initially engages the opposed surface of the second thermoplastic part when the first and second parts are brought into engagement with each other. The first and second thermoplastic parts are ultrasonically welded by pressing the parts together while vibrating at least the first part in a direction parallel to the direction of projection of the energy director. The energy director may include a pair of substantially flat side walls joined to opposite ends of the curved or flat end surface.

A method is provided for exchanging a section, in particular a damaged section, of a plastic component. The method includes: separating the section from the plastic component; providing at least one connecting element made from a plastic; pressing the at least one connecting element onto the plastic component such that the one connecting element abuts a remaining part of the plastic component; oscillating the connecting element by an ultrasonic sonotrode; and welding the connecting element to the remaining part of the plastic component; providing a replacement section for the separated section, wherein the replacement section has a hole, in particular a through-hole; applying the replacement section in the region from which the separated section was separated, such that the replacement section is clamped by its hole directly in a form-fitting and/or force-fitting manner onto the connecting element and/or the connecting element extends at least some way through the through-hole, wherein a clip element is clipped onto a section of the connecting element extending through the hole. The clip element projects beyond the through-hole and connects the replacement part to the remaining part of the plastic component in a form-fitting and/or force-fitting manner.

The electrofusion joint includes a tubular main body, a stopper portion, a first heat generating section, and a second heat generating section. The tubular main body includes a joint receiving portion. The stopper portion projects inward on the inner surface of the main body. The first heat generating section includes a heating wire wound and arranged at the joint receiving portion. The second heat generating section includes a heating wire wound so that wound parts are adjacent to each other and the heating wire is disposed in the stopper portion. The first heat generating section includes at least one heat generating portion in which the heating wire is wound so that the wound parts are adjacent to each other.

A pipeline system is enclosed including unlined or plastic lined pipes. A mechanical metal to metal connection is employed that can provide a fluid tight seal. A pipe coupling may be employed to span the connection. Plastic lined pipes can have their plastic liners connected to form a fluid tight bladder. Electro-fusion may be employed.

The polymeric pipes reinforced with a metal casing are used for transporting oil and gas, acids, alkali products, drinking water and industrial water, and also in the transportation of aggressive and neutral pulps. A metal-containing polymeric reinforced pipe includes a welded metal casing and a polymeric matrix having an amorphous-phase-based molecular structure. The metal-containing polymeric reinforced pipe is produced by extrusion moulding with simultaneous feeding of a polymer melt and the reinforcing metal casing into the mould cavity, followed by intensive cooling of the internal and external surfaces of the pipe being moulded. The invention increases the quality and endurance limit in the radial direction of the metal-containing polymeric reinforced pipe, productivity of the process for manufacturing the pipe, and also the strength and technological effectiveness of a pipeline constructed from the pipes produced.

A method of manufacturing a custom sized plastic tote lighter in weight than heretofore known custom sized plastic totes is provided. The method comprises separating an injection molded tote into upper and lower portions by cutting the injection molded tote. A sleeve or middle portion of plastic material is secured to the upper and lower portions of the injection molded tote to create a custom sized plastic tote of a desired height. Alternatively, portions of different injection molded totes may be used to create a custom sized plastic tote. The sleeve may be made from different materials and may be made of multiple pieces.

A sterile needle guide for use during a biopsy procedure includes a planar plate having at least one tubular needle guide extending there through. Needle guide may be manufactured from a kit having plurality of guide tubes each paired with a drill bit. In practice, a drill bit and guide tube are coupled to a drilling machine and positioned relative to a planar blank at a location derived from previously recorded or real-time imaging data. Drilling through the plate causes the guide tube to extend through the plate and become thermally fused therewith. In one embodiment, a guide tube includes multiple needle guide passages enabling multiple, clustered insertion points in a single area from a single guide tube.

A pipe connecting structure includes a tube made of PERT (polyethylene of raised temperature resistance) or PEX (crosslinked polyethylene) having a light-pervious or light-absorption color and a tubular connector made of PP (polypro pylene), PE (poly ethylene), POM (polyformaldehyde) or PA (polyamide) having a light-absorption or light-pervious color. One end of the tube and one end of the tubular connector are mated with each other to be welded together by laser welding with parameters including a power in the range of 13-28 W and a rotational speed in the range of 45-50 rpm. The strength of the pipe connecting structure is up to 500 psi when making a burst pressure test. The strength of the pipe connecting structure is two-three times as much as the original PERT tubular connector.