Modular filter capsule apparatus

摘要

Disclosed is a disposable filter capsule apparatus that incorporates integral quick connect components and check valves to facilitate assembly to, and dis-assembly from, larger assemblies and apparatus. The quick connect elements and valves are configured to eliminate the need for auxiliary sealing elements, e.g., o-rings and valve springs so as to prevent unwanted reactions with fluids and/or gases flowing through the capsules, and to further prevent the disposal of expensive re-usable elements in the disposable capsules.

主权项

1. A disposable filter capsule apparatus comprising:
a capsule body having portions defining a filter chamber; a filter secured in the chamber; at least one port having an inner wall defining a port chamber in fluid communication with the filter chamber wherein the port extends from the capsule body, and wherein an inner junction of the capsule body and the port forms a tapered annular wall having a small diameter end and a large diameter end, wherein the small diameter end connects to the port chamber; a quick connect fitting integral to the at least one port; an O-ring-free and rigid dual-flange check valve secured in the at least one port, wherein the check valve defines an inner valve chamber and comprises a bottom flange and a top flange, wherein the bottom flange has a frustoconically shaped upper surface, wherein the bottom flange upper surface has portions defining a plurality of concentrically oriented annular shoulders of consecutively larger cross-sectional diameters and arranged along the axial length of the bottom flange upper surface so as to collectively form a uniformly sloped, uniformly serrated, frusta-conical flange in cross-section, wherein the uniform slope of the combined annular shoulders is substantially parallel with the slope of the tapered annular wall, and wherein an annular apex of each annular shoulder registers against the tapered annular wall to form a multi-segmented face seal when the check valve is in a closed position; and, a valve spring secured in the capsule body and registered against a bottom surface of the top valve flange.