摘要:
Ein Verfahren zur Herstellung eines mehrere Falten aufweisenden Filters aus einer wässrigen Fasermischung, welche auf einem porösen Formstück aufgebracht wird und bei dem unter Druckeinwirkung auf das Formstück ein papierartiges Filterhaufwerk erzeugt wird, soll ohne mechanische Umformung des Rohformlings ausgeführt werden. Dies wird erfindungsgemäß dadurch erreicht, daß die wässrige Fasermischung auf das in der Filterkontur vorliegende poröse Formstück (4) aus voneinander getrennten Füllräumen (12,13, 14) abgelagert und das Filter aus benachbarten Faltabschnitten schichtförmig auf dem Formstück (4) durch getrenntes Zuführen der Fasermischung zu den miteinander verbundenen Faltabschnitten aufgebaut wird (Fig.).
摘要:
Filter device comprising a filter housing with feed and discharge channels for the medium to be filtered and a disposable filter cartridge releasably connected to said filter housing by a coupling device, in which said filter cartridge comprises a filter element accommodated in a pressure resistant outer casing and is provided with coupling means co-operating with said coupling device. Said coupling device comprises a mounting with an interior, outwardly diverging conical wall and a sealing ring located in a groove in said wall, and tensioning means, and said coupling means comprise an outwardly converging conical end wall fitting into said conical mounting and a tensioning surface, in which said tensioning means can grip on said tensioning surface to hold said conical end wall in gripping contact in the mounting.
摘要:
A filter assembly is provided comprising a housing; a fluid inlet and a fluid outlet in the housing, each opening into a fluid chamber; and, disposed in the fluid chamber across the line of fluid flow from the inlet to the outlet so that all flow from the fluid inlet to the fluid outlet must pass therethrough, a filter element composite comprising a filter sheet material sandwiched between layers of foraminous spacer sheet material. The filter element composite has an upstream side and a downstream side and separates the chamber into a first portion on one side of the filter element composite communicating with the fluid inlet, and a second portion on the other side of the filter element composite communicating with the fluid outlet. The filter element composite is folded on itself in at least a double layer defining therebetween an open interior space in fluid communication with one of the first and second portions of the fluid chamber, the outer side of the filter element composite being in fluid communication with the other of the first and second portions of the fluid chamber; and the double layer filter element composite is arranged in a plurality of convolutions extending transversely across the fluid chamber back and forth across the line of fluid flow from the fluid inlet to the fluid outlet.
摘要:
A compact water filter is described in which three filters are contained within a single container. The first filter in the sequence is a pre-filter designed to remove large particles from the flow stream, the second an activated carbon filter and the third a ceramic filter preferably containing silver or other bacteriostatic agent. The three filters are assembled within a cylindrical container which is sealed to the filter assembly at each end of its ends, so that a substantially uniform inward flow pattern is established, and so that the relative volumes of the carbon and ceramic materials are appropriate for their functions.
摘要:
Ein Verfahren zur Herstellung eines mehrere Falten aufweisenden Filters aus einer wässrigen Fasermischung, welche auf einem porösen Formstück aufgebracht wird und bei dem unter Druckeinwirkung auf das Formstück ein papierartiges Filterhaufwerk erzeugt wird, soll ohne mechanische Umformung des Rohformlings ausgeführt werden. Dies wird erfindungsgemäß dadurch erreicht, daß die wässrige Fasermischung auf das in der Filterkontur vorliegende poröse Formstück (4) aus voneinander getrennten Füllräumen (12,13, 14) abgelagert und das Filter aus benachbarten Faltabschnitten schichtförmig auf dem Formstück (4) durch getrenntes Zuführen der Fasermischung zu den miteinander verbundenen Faltabschnitten aufgebaut wird (Fig.).
摘要:
A compact water filter is described in which three filters are contained within a single container. The first filter in the sequence is a pre-filter designed to remove large particles from the flow stream, the second an activated carbon filter and the third a ceramic filter preferably containing silver or other bacteriostatic agent. The three filters are assembled within a cylindrical container which is sealed to the filter assembly at each end of its ends, so that a substantially uniform inward flow pattern is established, and so that the relative volumes of the carbon and ceramic materials are appropriate for their functions.
摘要:
Process and apparatus are provided for forming corrugated filter sheet by folding a long strip of sheet material into corrugations extending longitudinally of the strip, press-bending the sheet along the longitudinal fold lines of the intended corrugations; and gradually drawing in the sheet from the sides towards the center, while pushing the sheet out from each side along the fold lines, so as to form the intended corrugations, reducing the width of the sheet according to the height and width of the corrugations.
摘要:
A filter element of the cylindrical shape for filtering fluid having a constructional form including two-dimensional wave forms radially spreading from the axis of the cylindrical filter element in the form of annular rings, to allow the fluid to flow axially of the filter element. The filter element is produced by using a sheet of filter material in the form of a trapezoid or a segment.
摘要:
Process and apparatus are provided for forming corrugated filter sheet by folding a long strip of sheet material (1) into corrugations extending longitudinally of the strip, press-bending (3,4, 5, 6) the sheet alongthe longitudinal fold lines (7) of the intended corrugations; and gradually drawing in the sheet from the sides towards the center, while pushing the sheet out from each side along the fold lines (7), so as to form the intended corrugations (13, 14), reducing the width of the sheet according to the height and width of the corrugations.
摘要:
A flow-through medical filter element (24) which includes surface or depth filter media (34) and a frame-like structure (32) for supporting and positioning the media. The frame-like structure is a molded member which includes a ring-like inlet (35), a fluid-impervious terminal end (36) spaced from the inlet and a plurality of rib-like members (40 and 42) which extend between and interconnect the inlet end and terminal end. The inlet end includes internally-extending pleat-supporting projections (48 and 50) and the terminal end has complementary externally-extending pleat-supporting shoulders (52, 54 and 56). The frame-like structure is symmetrical about an axial plane which includes the mold parting line (38). The external shoulders are formed at angles which permits separation of a mold along the parting line and release of the part. The filter media also includes longitudinal pleats and is secured at its end to the pleat-supporting projections associated with the inlet end and to the external pleat-supporting shoulders at the terminal end. Thus blood enters the filter element flows through the media and thereafter exists the filter element.