초록 ▼

A static mixing dispenser provides a circuitous flowpath for plural components to be mixed between the inlet and the outlet of a conduit. Coextensive exterior sheets forming a tube can be attached to an interior sheet having openings communicating through the interior sheet. The sheets are sealed to

A static mixing dispenser provides a circuitous flowpath for plural components to be mixed between the inlet and the outlet of a conduit. Coextensive exterior sheets forming a tube can be attached to an interior sheet having openings communicating through the interior sheet. The sheets are sealed together at interior obstructions, forming mixing stages that subdivide and recombine the stream of material. The interior obstructions comprise sheets having openings formed through the thickness of each sheet. The openings each have a flap of sheet material, the partial detachment of which from the sheet forms the opening, leaving a connection of limited area around which the flap can pivot. The flap is thus bendable relative to the sheet so that the flap opens during the movement of flowable components in a first direction, and closes during movement of the flowable components in a second direction, forming an array of check valves that advance the material from the source to the outlet as the device is compressed manually or pressure is otherwise applied.

대표청구항 ▼

[ What is claimed is:] [1.] 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 le

[ What is claimed is:] [1.] 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.