Abstract: A collapsible co-dispensing tubular container for separately storing and co-dispensing two extrusible product components of substantially equal viscosity with substantially constant proportionation. The container may comprise a collapsible tubular body, a head fitment having two discharge ports which fitment is sealingly secured in one end of the collapsible body, and a longitudinally extending interior bulkhead disposed to partition the interior of the container into two compartments, one of which compartments is in fluid communication with one of the discharge ports, and the other of the compartments being in fluid communication with the other of the discharge ports. The improvement comprises a pressure responsive moveable septum disposed adjacent the head end of the container and which septum is in fluid communication with both of the compartments in the container.

Abstract: A powder dispenser for gently issuing puffs of relatively low velocity air-entrained powdered material through a discharge port. The dispenser has means for substantially fluidizing a bed of powdered material contained therein with an upward pulse of relatively low velocity, substantially columnar air flow so that some of the powder in the bed of powdered material becomes entrained in and issued from the dispenser by relatively low velocity air. The dispenser may include a foraminous bulkhead which defines the bottom of a powder accommodating chamber, a plenum chamber subjacent the foraminous bulkhead, and means for pumping a volume of air into the plenum chamber so that a pulse of relatively low velocity air flows upward through the foramina of the bulkhead and the bed of powdered material disposed thereon.