Method and apparatus for manufacturing coffee infusion pods

摘要

A mold has a depression defining the shape of the bottom of an infusion pod. The opening of the depression is rimmed with a mold sealing surface. A coffee pressing bolt has a protrusion in substantial conformity to the shape of the depression. A bolt carrier has a resilient member biasing the bolt. The bolt carrier is axially moveable relative to the mold to repeatedly bring the form into contact with the mold in such a manner as to bring the mold sealing surface and the bolt carrier sealing surface into compressive relation while simultaneously bringing the bolt and the depression into juxtaposition. The resilient member has a spring coefficient high enough to conform a sheet of filter material to the shape of the depression and mold sealing surface so as to create a flanged filter cup in a cupping operation, yet low enough to avoid over packing a quantity of an infusable material deposited within the flanged filter cup in a sealing operation.