Patent ID: 6923909

Claim:
In a pressurized filter system for filtering liquids, wherein a sample of the liquid to be filtered is caused to flow through an inline filter apparatus having an inlet body portion and an outlet body portion with a filter disc disposed therebetween (to determine) for determining the optimum filter material to be utilized in a production filter system comprises: A. a centrally located input port disposed in the inlet body portion of said filter apparatus; B. a compression ring circumscribing said inlet body portion having internalthreads and an aperture into which said inlet body portion is removably received; C. an outlet body portion having a centrally disposed output port and external threads adapted to receive said internal threads provided on said compression ring; D. filter disc material comprising several layers of filter material circumferentially welded together to form a rigid disc, said disc being adapted to be centrally received by said outlet portion; and E. an internal malleable compression ring disposed between said filter disc and said inlet body portion to provide uniform pressure about the circumference of said disc as said compression ring is rotated onto said outlet body portion.