Container for holding and dispensing flowable products

Claim 1

Apparatus for holding and dispensing flowable products comprising a substantially non-flexible outer container having a generally cylindrical inner wall, a flexible inner container for receiving a flowable product, said inner container having upper and lower end portions connected by an intermediate portion, said upper end portion being connected to said outer container, said lower end portion having a downwardly extending generally frusto-conical configuration, said intermediate portion being of non-circular cross-section and including at least three blunt angles connected by arcuate wall sections, each of said arcuate sections having a radius which is larger than the radius of the inner cylindrical wall of said outer container, the exterior surfaces of said blunt angles frictionally engaging the inner wall of said outer container, the inner surface of each of said blunt angles having a radius which is less than the radius of each of the arcuate wall sections, said blunt angles being substantially thicker than said arcuate wall sections, selectively operated discharge valve means mounted on said outer container and communicating with the contents of said inner container, and a pressure media located in said outer container and exteriorly of said inner container so that when said discharge valve means is operated said pressure media causes said arcuate wall sections to collapse inwardly and discharge material through said valve means while said blunt angles remain substantially in engagement with said inner walls of said outer container.