| 摘要 |
<p>A static mixing dispenser (10) provides a circuitous flowpath for plural components to be mixed between the inlet and the outlet of a conduit (12). 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 (80, 85, 90) formed through the thickness of each sheet. The openings each have a flap (100) 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 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.</p> |
