초록 ▼

A fluid filter is formed by manufacturing an air laid batt containing randomly disposed structural fibers and a thermoplastic binder fiber. The interstices between the fibers are fixed by applying a latex resin to the batt, thereby fixing the pore sizes of the filtering media before the filtering me

A fluid filter is formed by manufacturing an air laid batt containing randomly disposed structural fibers and a thermoplastic binder fiber. The interstices between the fibers are fixed by applying a latex resin to the batt, thereby fixing the pore sizes of the filtering media before the filtering media is molded. The filtering media is then molded into shape by using a plunger to tuck the media into an open cavity mold. The mold may be heated and pressure may be applied to the batt to mold the batt.

대표청구항 ▼

Method of forming a fluid filter comprising the steps of regulating and controlling the pore size of a nonwoven batt comprising a randomly arrayed mixture of separated fibers, said fibers having interstices therebetween, molding said batt into the desired shape of a fluid filter, fixing the intersti

Method of forming a fluid filter comprising the steps of regulating and controlling the pore size of a nonwoven batt comprising a randomly arrayed mixture of separated fibers, said fibers having interstices therebetween, molding said batt into the desired shape of a fluid filter, fixing the interstices by including a binder material in the batt before molding said batt into the desired shape, and tucking said batt into a mold before the batt is molded into the desired shape to permit the batt to flow into the mold to prevent stretching of the batt as it is molded.