Patent ID: 6135632
Filing Date: 2000-10-24
Classification: B01F

Abstract:
A static mixing device for mixing at least two flowable components of a composition comprising:a disposable mixing conduit having first and second facing exterior sheets, and a third sheet positioned between said exterior sheets so as to form an interior sheet along at least part of the first and second exterior sheets, said first, second and third sheets being sealed together at seams defining two peripheral side seams and at least one peripheral end seam of a flowpath, said mixing conduit defining an outlet at an edge spaced away from said peripheral end seam;a first storage compartment formed by a seam extending between said two peripheral side seams and joining together said first sheet and said interior sheet;a second storage compartment formed by a seam extending between said two peripheral side seams and joining said interior sheet and said second sheet;a first set of mixing compartments formed by a plurality of spaced seams extending between said two peripheral side seams and joining together said first sheet and said interior sheet and disposed in fluid communication with said first storage compartment; and,a second set of mixing compartments formed by a plurality of spaced seams extending between said two peripheral side seams and joining said interior sheet and said second sheet and disposed in fluid communication with said second storage compartment;said interior sheet having a plurality of openings which communicate between corresponding first and second sets of mixing compartments, each of said openings including a flap, each of said flaps being integral with an edge portion adjacent to a corresponding one of the openings and operable such that the flow of said at least two flowable components through the respective compartments in one direction displaces said flaps away from said openings, and is prevented from flowing back through said openings in a reverse direction by said flaps.