Tank filter

Claim 1

In combination, a pressurizable vessel having a single inlet-outlet port, manually operable valve means including a housing having a valve passageway therethrough sealably mounted to said vessel across said port, said valve means including a tube connected to said passageway and extending through said port into said vessel, said tube having an open distal end for communicating said valved passageway with the chamber in said vessel, a tubular filter member comprising a mass of minute fibrous members having surfaces against which particles are held by intermolecular forces of attraction irrespective of the direction of fluid flow therethrough to remove entrained particles from fluid entering and exiting the vessel, said filter member being positioned over said tube in spaced concentric relationship therewith to provide an annular chamber disposed between said tube and said filter member, a tubular connector press fitted onto the distal end of said tube and having a laterally extending hole therethrough communicating with the open distal end of said tube for connecting said passageway to said annular chamber, and end cap means removably secured to said connector and holding said filter member in place over said tube in sealing relationship with said housing.