Dispenser container with compressible pump

摘要

This invention is directed to a dispenser for viscous fluids. More particularly, this invention is directed to a dispenser container for viscous fluids comprising a container body provided with a resiliently compressible portion including a mouthpiece at one end of said container body; a storage chamber to hold material to be dispensed; a piston member arranged in said container body at the other end contacting the inner wall of the container to define a boundary of the storage chamber, the piston member being movable towards and restrained from movement away from said compressible portion; a top surface to the storage chamber; an elastically compressible pump having an inlet valve in the top surface, and outlet valve in the mouthpiece, and a pump chamber between the valves, and a separate removable cover for said dispenser container having a stopper means adapted to cooperate with the outlet of said mouthpiece to seal said outlet, wherein the inner wall of the container is roughened at the zone of insertion of the piston in such a manner to permit the passage of air but to prohibit the passage of material to be dispensed and the stopper means is arranged in the mouthpiece outlet in such a manner to permit the passage of air but to prohibit the passage of material to be dispensed.