Filter for hight pressure device

A filter device for use in a spray paint system for substantially minimising moisture and particulate matter in a stream of compressed air including:

• an air tight housing structure having an internal longitudinal chamber adapted to releasably receive a paper filter medium such as a conventional toilet tissue roll, the chamber being formed by joining an upper body and a lower body, the upper and lower body each having a collar forming a first and opposite ends of said housing, and a waistband about which the upper and lower bodies are releasably joined in an operating condition;
• the upper and lower body include a mounting structure extending inwardly and centrally of the chamber from said ends, wherein a cylindrical core of the paper filter medium is mounted over the mounting structure at each end thereby forming a central longitudinal column structure within the chamber extending from one mounting structure to the opposite mounting member;
• the collar of the lower body having an inlet opening for receiving a stream of compressed air, the inlet being located in offset relation from the mounting structure, and the collar of the upper body having an outlet opening for egress of filtered air to a spray gun, the outlet opening being located in offset relation to the respective mounting structure;
• wherein at least the mounting structure of the lower body is interconnected to the respective collar by a series of spaced apart radial ribs, the ribs providing a circumferential platform on which the paper filter is seated in spaced relation to the inlet, and wherein when the paper filter is seated on the ribs, the ribs define a series of separate compartments about the mounting structure;
• wherein the compartments are in air/fluid communication about the mounting structure such that compressed air entering the inlet port is directed to flow circumferentially about the mounting structure and between the compartments, and thereafter through the filter medium and about the column structure so as to increase the air path such that moisture from the compressed air is substantially removed without substantially destroying the paper medium.

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 extending inwardly from the end portions and 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;
• 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.