Abstract: A filtering device (100) for plastic melts exhibits at least one screen plunger (10) arranged movably between an inlet channel (5) and an outlet channel (6) of a housing (1) and containing replaceable, three-dimensional filter elements (25). The inside of the filter elements (25) is connected to at least one melt channel (11, 12) formed in the screen plunger (10). The melt channel is connected to the inlet or outlet channel (5, 6) of the housing (1) when in the production position. The screen plunger (10) exhibits at least one receiving chamber (14) that can be closed using a cover (16) on the face side. Several filter elements (25) are bundled with a central distribution element (20) to a filter cartridge (30) that can be placed in the receiving chamber (14).

Abstract: A filtering device (100) for plastic melts exhibits at least one screen plunger (10) arranged movably between an inlet channel (5) and an outlet channel (6) of a housing (1) and containing replaceable, three-dimensional filter elements (25). The inside of the filter elements (25) is connected to at least one melt channel (11, 12) formed in the screen plunger (10). The melt channel is connected to the inlet or outlet channel (5, 6) of the housing (1) when in the production position. The screen plunger (10) exhibits at least one receiving chamber (14) that can be closed using a cover (16) on the face side. Several filter elements (25) are bundled with a central distribution element (20) to a filter cartridge (30) that can be placed in the receiving chamber (14).

Abstract: A device for filtering a fluid, in particular a liquefied plastic, has a housing with at least one supply channel and having a discharge channel. In the flow path of the fluid at least one screen is arranged in a corresponding screen space in at least one screen carrier, which is supported so as to be displaceable crosswise to the direction of flow. The screen can be brought into connection with the supply channel and with the discharge channel, the screen being formed as an elongate oval or a polygon. The channel splits into two partial supply channels, which open out into the screen space on the dirty side of the screen. The front supply channel, viewed in the screen change direction, opens out into a channel worked into the screen carrier, which channel feeds to the screen space the plastic to be filtered.

Abstract: A three dimensional reconstruction of vessel trees from rotational digital subtraction angiogram sequences is described. The goal of the process is to estimate the probability that each voxel contains a vessel using the projection data. The system utilizes x-ray angiographic equipment capable of producing rotational digital subtraction angiogram sequences. Reconstruction of the geometry of the vasculature is based on the projection images. The reconstructed geometry is then displayed on a screen or used for measuring specific physiological parameters. The Dempster-Shafer theory of evidence is used to combine information about location of the vessels from the different projections contained in the digital subtraction angiogram sequence.