| 摘要 |
The present invention relates to a filter device for substantially minimising moisture and particulate matter in a stream of compressed air or other fluid including: a substantially symmetrical housing comprising at least two interconnectable frusto-conical body elements, the housing having: an inlet end connectable to a compressed air source and an opposite outlet end for egress of filtered air, the housing including an internal chamber for the passage of compressed air/fluid between the inlet and outlet, and a mounting structure at end portions of the frusto-conical body element, the mounting structures being centrally located of the chamber; a paper filter medium selected from one or more of a conventional toilet roll or the like paper roll having a cylindrical open-ended paper/cardboard core, wherein in an operating condition, the ends of the cylindrical core of the paper filter are received on at least a portion of the mounting structures, wherein the cylindrical core and mounting structures form a continuous column structure centrally of the chamber, wherein a circumferential gap is provided between at least the inlet end of the housing and the paper filter medium to initiate circuitous movement of incoming pressurised air/fluid stream about the mounting structure; and a locking means that releasably interlocks the frusto-conical body elements in a substantially air/fluid tight operating condition; wherein in an operating condition, air/fluid, which is directed into the chamber under pressure through the inlet, is urged in a circuitous air/fluid filter pathway around the column structure and through the paper filter medium towards the outlet substantially increasing moisture filter efficiency and whereby particulate matter becomes trapped in the filter medium or falls under gravity as the air/fluid stream progresses towards the outlet. 71 7d71 |
