A first structure made of a first polymer is joined to a second structure made of an incompatible second polymer by the steps of welding small bands of compatible tubing or material to the first structure to create raised structures or ribs, and mechanically linking the second structure with the ribs or raised structures at the desired attachment point. The mechanical linkage may be accomplished by using heat shrinking or mechanical compression (such as crimping) to force the incompatible second polymer around the ribs or raised structures or, in the case of raised structures formed as threads or nubs, by inter-engagement between the threads or nubs on the first structure and corresponding structures, such as internal threading, nub-receiving slots, or internal surfaces, of the second structure. The option of using the welded raised structures as threads or nubs for a threaded, bayonet, pin-and-slot, snap-fit, or similar connection enables the second structure to be removed from the first structure and replaced whenever the second structure becomes worn during use. The first structure may be an surgical laser fiber with an ETFE buffer layer, and the second structure is a protective structure may be made of PTFE, PET, FEP or PFA.

The composite tube may include a body having a longitudinal centerline axis and at least one end portion. The at least one end portion may include a plurality of segments that are angled relative to the longitudinal centerline axis and are circumferentially separated from each other by a plurality of slits. The composite tube may be implemented in a joint assembly that includes a support wedge. The support wedge may at least partially engage at least one of a radially inward surface of the at least one end portion and a radially outward surface of the at least one end portion.

A method for creating a connection between components of different plastics. A first section can consist of a first plastic whose main constituent is polarised plastic, and a second section can consist of a second plastic whose main constituent is non-polar plastic. The method includes creating the connection between the first section and the second section with help of beamed-in laser energy; subjecting the first section to incident laser energy, the first section being at least partly transparent with regard to the incident laser energy; and absorbing beamed-in laser energy at least partly in a joining region, in which the first and the second sections bear on one another in an overlapping manner amid action of force, to create a positive, unreleasable connection between the two components.

The invention provides improvements to electrofusion fitting methods that allow for continuity and repeatability of welds between an electrofusion fitting and a pipe lining (or stand-alone pipe). An electrofusion fitting for joining sections of lined pipe has heating elements configured to create at least one weld between the electrofusion fitting and a pipe lining. However, prior to the weld step taking place the electrofusion fitting is heated and expands accordingly to ensure contact with the pipe lining. Preheating the electrofusion fitting also provides a predetermined starting temperature for the fitting and the lining which results in improved fusion cycle reliability. Furthermore, the need for clamps or support frames to support the electrofusion fitting in situ is removed, with corresponding reductions in cycle times, complexity, and hence cost.

A metallic/composite joint may comprise a composite member having a flared end or an angled end, a liner perimetrically surrounding the composite member, and a metallic member perimetrically surrounding the liner. A first side of the liner contacts the composite member and a second side of the liner contacts the metallic member. The liner perimetrically surrounds at least a portion of the flared end. A through-thickness compressive stiffness of the liner may be less than a similar stiffness of the composite member.

Disclosed is a composite beam structure having: an end piece, an end piece outer periphery surface, and an end piece mating end defining an end piece axial boundary, the end piece includes wedge-shaped inner locking features that are formed to project outwardly from the end piece outer periphery surface at the end piece mating end and are spaced apart from one another in the hoop direction; and a composite tube configured to surround at least a portion of the end piece mating end to form a beam joint, wedge-shaped imprints are formed through the composite tube, corresponding to the wedge-shaped inner locking features, the wedge-shaped imprints define respective composite tube wedge-shaped depression surfaces about a composite tube inner periphery and composite tube wedge-shaped boss surfaces about a composite tube outer periphery, and the wedge-shaped inner locking features of the end piece are covered by the composite tube wedge-shaped depression surfaces.

A packaging for modified atmosphere packaging includes a flangeless cardboard tray having a bottom and an upstanding peripheral wall. A plastic flange is arranged on top of the edge of the peripheral wall. The plastic flange has in cross-section a first part extending horizontally, substantially parallel to the bottom of the tray, a second part depending from the first part downward along the outside of the peripheral wall and a third part depending from the first part, opposite of the second part, along the inside of the peripheral wall. A plastic barrier foil is adhered to and lines the inside of the cardboard tray and extends over the plastic flange to fix the plastic flange onto the flangeless cardboard tray.

This invention discloses method of manufacture of balloon expandable stent made from bioabsorbable polymer with thin struts (strut thickness 130 m or less, preferably 100-110 m) with high fatigue and radial strength. The invention further discloses balloon expandable stent made from bioabsorbable polymer with thin struts (strut thickness 130 m or less, preferably 100-110 m) with high fatigue and radial strength.

An apparatus to apply a foam seal to a part is provided. The apparatus comprises a receiving device to secure the part, a loading device and a driving device to drive the loading device. The receiving device includes a housing, a first rod coupled to the housing and at least partially disposed in the housing and a resilient member connected between the housing and the first rod at a radial direction. The loading device includes an actuating member and a holding member to hold the foam seal. The driving device is configured to move the loading device between a loading position and an application position and further drive the actuating member and the holding member to rotate around an axis parallel to the first rod. The actuation member contacts the housing while rotating and the foam seal on the holding member contacts the part at the application position.

A hybrid propeller shaft may include a CFRP tube layer in which high-strength CFRP or high-elasticity CFRP, the high-strength CFRP, and the high-elasticity CFRP are laminated to form at least two layers while having different wrapping angles by a prepreg wrapping process method; and a protective layer which is formed on an outermost layer of the CFRP tube layer to protect the CFRP tube layer.