Filter and/or absorption media

Claim 2

The cartridge of claim 1 wherein the walls of the cells of said open celled highly porous fibers are activated for the exchange of ons with fluid passed therethrough.

Claim 3

In a fluid treating device of the type having a generally cylindrically shaped container, and a cartridge located generally coaxially therein, the improvement wherein said cartridge consists of: an annular wound package of continuous strand glass fibers the windings of which are traversed back and forth over the top of each other at crossover angles of between approximately 5* and approximately 25*, said package having generally cylindrical inner and outer surfaces with passages therebetween running between the fibers in between crossover contacts, said glass fibers being of a glass from the group consisting of alkali and alkaline earth containing glass, and being leached in situ to provide an open celled highly porous fiber structure, and said package being devoid of lubricants and film forming materials which cause channeling of fluid flow through the package, means closing off one end of said cartridge, an annular seal adjacent the opposite end of said cartridge and having radially inner and outer legs extending in one direction, the outer leg being in sealing engagement with the side walls of said container and the inner leg being in sealing relationship with respect to said outer cylindrical surface of the cartridge, said seal also having radially inner and outer legs extending in the opposite direction, an annular hold down device positioned against the portion of said seal between said legs, and inlet and outlet and connections in said container on opposite sides of said annular seal.