Method and apparatus of manufacturing porous pouches containing granularproduct

Abstract From the Canadian patent

A method and apparatus for making a porous laminated sheet product having upper and lower web members connected about their periphery and having at least one compartment formed therein, and containing a predetermined quantity of inner product within such compartment. In a preferred embodiment the, apparatus includes a pouch-forming surface having at least one inner product loading area formed therein which further includes a cavity surrounded by peripheral land areas a passageway, adapted to place the product loading area cavity in fluid communication with a vacuum source such that suction can be selectively applied to the cavity, and one or more apertures formed through the peripheral land …