Abstract: A manifold plate for a manifold for supplying thermoplastic plastic melt to at least one extrusion head for producing a preform is disclosed. The manifold plate includes: a first plate side and a second plate side, a distribution groove incorporated in the first plate side and extending in a plate plane of the first plate side, and at least one connecting channel adjoining the distribution groove, which is worked into the manifold plate and ends at an outlet opening in the second plate side. The manifold plate is characterized in that the at least one connecting channel is milled into the manifold plate and, in the flow direction, has a course which is curved at least in sections towards the second plate side. A manifold, an extrusion assembly and a method for manufacturing a manifold plate are also disclosed.

Abstract: Annular manifold for an extrusion parison head for manufacturing a tubular moulding from a thermoplastic material includes an accommodation body with a first accommodation chamber with an inner surface, a first distribution sleeve with an outer surface, which has a distribution groove, wherein the first distribution sleeve is accommodated in the first accommodation chamber, as well as an annular first distribution chamber, which is formed between the inner surface of the first accommodation chamber and the outer surface of the first distribution sleeve, and which ends in an annular gap opening, wherein the outer surface of the first distribution sleeve has a single helical distribution groove with more than one winding and less than 1.25 windings.

Abstract: Extrusion head 1 for manufacturing hose-like parisons from an extruded plastic material, which are made up from at least one first layer and a second layer, wherein the extrusion head 1 comprises the following: a first manifold 15 with a connection 2 for a first extruder, a second manifold 19 with a connection 8 for a second extruder 3, a first flow channel 17 with an annular first outlet opening 18 for producing a first layer, wherein the first flow channel 17 is fed by the first manifold 15, a second flow channel 21 with an annular second outlet opening 22 for producing a second layer, wherein the second flow channel 21 is fed by the second manifold 19, and a mixer 27 within the second flow channel 21 with a connection 54 for introducing a foaming agent.

Abstract: Annular manifold for an extrusion parison head for manufacturing a tubular moulding from a thermoplastic material includes an accommodation body with a first accommodation chamber with an inner surface, a first distribution sleeve with an outer surface, which has a distribution groove, wherein the first distribution sleeve is accommodated in the first accommodation chamber, as well as an annular first distribution chamber, which is formed between the inner surface of the first accommodation chamber and the outer surface of the first distribution sleeve, and which ends in an annular gap opening, wherein the outer surface of the first distribution sleeve has a single helical distribution groove with more than one winding and less than 1.25 windings.

Abstract: A multiple extrusion head for manufacturing parisons from thermoplastic material includes a stationary arranged base frame and a multiple of extrusion heads arranged on the base frame. Each of the extrusion heads has a material inlet, a ring die in fluid connection to the material inlet, an outer die element and an inner die element arranged coaxially to each other, an adjustment element displaceable along a longitudinal axis of the multiple extrusion head, and spring supports arranged between the base frame and the adjustment element. The spring supports are supported in a biased manner against the base frame and the adjustment element such that such that tilting moments between the extrusion heads is reduced.

Abstract: Extrusion head 1 for manufacturing hose-like parisons from an extruded plastic material, which are made up from at least one first layer and a second layer, wherein the extrusion head 1 comprises the following: a first manifold 15 with a connection 2 for a first extruder, a second manifold 19 with a connection 8 for a second extruder 3, a first flow channel 17 with an annular first outlet opening 18 for producing a first layer, wherein the first flow channel 17 is fed by the first manifold 15, a second flow channel 21 with an annular second outlet opening 22 for producing a second layer, wherein the second flow channel 21 is fed by the second manifold 19, and a mixer 27 within the second flow channel 21 with a connection 54 for introducing a foaming agent.

Abstract: A multiple extrusion head (1) for blow molding extrusion machines has a plurality of first extrusion heads (2) fixedly arranged side by side in a first row forming a first plane (3). A plurality of second extrusion heads (4) are fixedly arranged side by side in a second row forming a second plane (5) that extends parallel to the first plane (3). Per row, distributing devices (6, 6a, 6b) are provided with first distributing channels (7, 10) that are arranged in the first plane (3) and the second plane (5), respectively. The distributing devices (6a, 6b) are separated in the region of the first plane (3) and second plane (5), A third distributing device (15) is provided with third distributing channels (18) that are arranged in a third plane (16) extending at a right angle relative to the first plane (3) and to the second plane (5).

Abstract: A multiple extrusion head 1 for blow molding extrusion machines has a plurality of first extrusion heads 2 fixedly arranged side by side in a first row forming a first plane 3. A plurality of second extrusion heads 4 are fixedly arranged side by side in a second row forming a second plane 5 that extends parallel to the first plane 3. Per row, distributing devices 6, 6a, 6b are provided with first distributing channels 7, 10 that are arranged in the first plane 3 and the second plane 5, respectively. Each distributing channel is connected to an extrusion head 2 and 4, respectively, comprising a joint first and, respectively, second mass entrance 9 and 12. The distributing devices 6a, 6b are separated in the region of the first plane 3 and second plane 5 respectively. Furthermore, a third distributing device 15 is provided with third distributing channels 18 that are arranged in a third plane 16 extending at a right angle relative to the first plane 3 and to the second plane 5.

Abstract: An apparatus is disclosed for the production of oxygenated blood. The apparatus incorporates a vessel for containing the blood that is to be processed, an ultraviolet lamp and an infrared lamp being associated with the vessel. A feed pipe extends into the vessel to a position near the bottom of the vessel, such feed pipe being connected to a source of ozone. The vessel is essentially in the form of an inverted bottle, the neck opening of which is closed and the base of which incorporates a central opening for the feed pipe, the vessel and the feed pipe being designed as disposable items. The vessel is installed in the area of a working surface of the apparatus so as to be releasable therefrom, while the feed pipe is connectable to a coupling on a line that leads to the ozone source.

Abstract: A sun-tanning apparatus has a supporting or bed surface and a plurality of low-pressure UV-A tubes arranged parallel to and at a distance from each other as radiation generators in a housing of the apparatus, the UV-A tubes being installed in a trough-like reflector and being covered on top by the supporting surface that rests on the side walls of the housing and which permits the passage of UA-V radiation. A largely even and flat radiation outlet is provided immediately above the supporting surface by using spacers arranged over the length and/or breadth of the apparatus between the low-pressure UA-V tubes, the supporting surface resting on the upper ends of said spacers, the lower ends of said spacers being attached in or on the base of the reflector. The spacers are a plurality of stand-off bolts that are distributed over the length and breadth of the apparatus, the supporting surface resting on the upper ends of the bolts, the lower ends of the bolts being secured in the base of the reflector.