Patent ID: 7625199

Claim:
An injection molding die for a mold for fabricating a plastic filter component comprising a net, at least one supporting rib, and a frame, the molding die comprising: a plurality of net grooves comprising a first set of net grooves and a second set of net grooves intersecting at least some of the first set of net grooves, the plurality of net grooves for receiving plastic material for forming the net of the plastic filter component; at least one rib groove contiguous and in flow communication with at least some of the net grooves, the at least one rib groove being deeper than said net grooves, said at least one rib groove for receiving plastic material for forming the at least one supporting rib of the plastic filter component and being dimensioned so that said at least one supporting rib divides said net into at least two isolated portions; a frame cavity around the net grooves and in flow communication therewith, for receiving plastic material for forming the frame of the plastic filter component; and at least one restriction positioned in said at least one rib groove, the depth of said at least one restriction in said at least one rib groove being adjustable to control plastic material flow therepast and into at least some of said net grooves.