Squeezable multi-layer dispensing container with one-way valve
AssigneeContinental PET Technologies, Inc.
InventorsSteven L. Schmidt, Wayne N. Collette, Suppayan M. Krishnakumar
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AssigneeContinental PET Technologies, Inc.
InventorsSteven L. Schmidt, Wayne N. Collette, Suppayan M. Krishnakumar
Estimating the term…
A squeezable container for dispensing a product out the open end of the container, including a collapsible inner layer and a resilient outer layer. The container is an integral body formed by expansion from a multi-layer preform, and preferably consists of one or more layers of polyethylene terephthalate (PET) separated by an adjacent boundary layer, such as a barrier layer of ethylene vinyl alcohol (EVOH). A one-way check valve is provided at the outer layer to restrict the flow of air into a chamber which is formed between the inner and outer layers as the inner layer collapses, and preferably a second check valve is provided in the open dispensing end of the container to prevent air from being drawn into the container when the outer layer is released. The container is economical to manufacture, light in weight, easy to handle, can be made of recycled materials, and is "product efficient" in that substantially all of the product can be dispensed from the container during use.
A squeezable container for dispensing a product comprising:
A squeezable container for dispensing a product comprising:
A squeezable container for dispensing a product comprising:
A squeezable container for dispensing a product comprising:
A dispensing container having a resilient outer body and a flexible collapsible inner bag with the inner bag holding a product to be dispensed, the container having an open end from which the product is dispensed and a closed end, wherein the inner layer is separate from the outer layer at the closed end of the container and joined thereto at least at the open end, and an aperture is provided in the outer layer at the closed end to enable air to enter between the inner and outer layers to facilitate collapse of the inner layer, and wherein the inner layer has a tapered wall thickness, decreasing in thickness towards a base end of the container opposite the open dispensing end.
Dependencies are inferred from the claim text.