In a general aspect, a clamping ring for use on a pipe when making a pipe connection is configured such that when establishing the pipe connection an end of a pipe and the surrounding clamping ring are expanded simultaneously, wherein the clamping ring is made of a plastic material having memory properties such that after expanding, the clamping ring shrinks or contracts automatically, the clamping ring further comprising a chamfer on the inlet inner diameter edge of the clamping ring.

In a general aspect, a clamping ring for use on a pipe when making a pipe connection is configured such that when establishing the pipe connection an end of a pipe and the surrounding clamping ring are expanded simultaneously, wherein the clamping ring is made of a plastic material having memory properties such that after expanding, the clamping ring shrinks or contracts automatically, the clamping ring further comprising a chamfer on the inlet inner diameter edge of the clamping ring.

A vibration welding groove system may include a first component having a joining surface with a groove region, where the groove region comprises a groove formed in the joining surface. The first component includes a base region lacking the groove in the joining surface and a transition region located between the groove region and the base region. The transition region has a tapering of the groove to provide a smooth transition from the groove region to the base region. The vibration welding groove system may further include a second component having a weld leg extending from a main body, where the groove of the first component comprises a shape configured to nudge the weld leg towards a center of the groove during joining of the first component with the second component.

A vacuum generator for fuel tank ventilation may include a fluid feed-through body having at least two plastic parts, in particular plastic shells. The fluid feed-through body may have an overpressure conduit section connectable to an overpressure source, in particular downstream of a turbo charger and downstream of a throttle valve of a motor vehicle engine, an intake conduit section connectable to the fuel tank and a delivery conduit section connectable to a motor vehicle engine, and a venturi nozzle into which the overpressure conduit section opens. The intake conduit section may open into a vacuum side of the venturi nozzle. At least the venturi nozzle may be made of a plastic piece.

An axial alignment structure for a fluid pressure pump (100) includes: a first housing made of a resin; and a second housing made of a resin, in which a housing is configured in a state where the first housing and the second housing are joined to each other by thermal welding at a welding position, and a pump rotor is accommodated in the housing, and the first housing and the second housing have an axial alignment mechanism that axially aligns the first housing and the second housing such that axes of the first and second housings coincide with each other at the time of joining of the first housing and the second housing to each other by the thermal welding.

The invention relates to a method for manufacturing a plastic pedelec frame (1) by, preferably integrally, joining two matching plastic half-shells (2, 3), said pedelec frame being provided with receptacles (12, 13, 14) for a handlebar (4), a bottom bracket (5) and preferably a seat (6). The two plastic half shells (2, 3) are made from a fiber-reinforced thermoplastic material containing a partially aromatic polyamide, using an injection molding process. The invention also relates to a pedelec frame (1) manufactured by said method.

A method for producing a plastic container from a first plastic half-shell and a second plastic half-shell, with a first attachment permanently fastened to the first plastic half-shell.

The present invention relates to a spacer 101 for forming a spacing between glass panes 201, 203, with a top part 103 and a lower metal foil 105, the two parts introduces an overlap 209, 211 parallel to the sidewalls of the spacer. By having overlapping regions at the side walls the spacer is stiffened and thereby spacers can be produced of quite thin material e.g. only thin metal foil.

Vapors in the fuel tank of a vehicle are collected in a carbon canister. An ejector or aspirator is used to purge the carbon canister in a pressure-charged engine in which a positive pressure exists in the intake. A compact ejector includes a substantially planar flange and a venturi tube coupled to the flange with a central axis of the venturi tube substantially parallel to the flange. By manufacturing the ejector in two pieces, dimensions within the ejector: throat, converging section, and diverging section, is more accurate than prior art manufacturing techniques thereby providing better flow characteristics throughout the boost range.

In the process of making a hollow product, especially a deformable toy ball, two halves made from on elastomeric material, a thermoplastic material, rubber, a blend of rubbers, or a thermoplastic elastomer are formed by injection molding with mating edges that engage with each other when the halves are assembled to form the product. The edge of one of the two halves is advantageously formed with a recess centered in the edge, in which a flange formed on the edge of the other of the two halves engages to provide a form-fitting connection between the two halves. The opposing edges are then bonded with each other by fusion or melting or by an adhesive applied to at least one of the edges prior to assembling the halves together. A deformable ball produced by the process is also described.