Fill/invert package with specialized sealing, non-flow-through elevator

Abstract

A swivel up package for a deodorant or antiperspirant having specialized sealing which prevents leakage of product, in either its molten or volatile state, during manufacture, shipment and storage by containing all of the product within or above the elevator. The preferred package has a body of an oval or circular cross-section with an open top and a closed bottom. The bottom has a centralized aperture adapted to receive a spindle having a screw shaft disposed within the body and a dial or handwheel disposed outside the body. Also disposed within the body of the package is the elevator having a threaded central hub that is in engagement with the screw shaft. The periphery of the elevator is sealed along the internal surface of the body of the package. Further sealing is provided between the hub/threaded shaft interface when the elevator is in its lowermost position. The elevator has a reservoir to receive molten product during the fill process. The seals are such that flow of air and molten product to the reservoirs is possible only through the top of the package. The volumetric capacity is at least as great as the volume intermediate the fill line of the package, filled in its upright condition with the product in a molten or liquid form, and the inner surface of a forming means used to shape the top of the product. There is also provided a fill/invert process for manufacturing a cosmetic stick-type product using the package described above.