Child Resistant Blister Package
AssigneeAmcor Flexibles, Inc.
InventorBrian Ingraham
Life of this patent
Estimating the term…
Abstract
A child and bite resistant package having a tray and a plurality of spaced apart cavities that are formed therein is provided. A sheet material overlies the tray such that a product disposed in a cavity is enclosed and sealed therein. The sheet material includes a plurality of zones of weakening that are each disposed above a corresponding cavity. Each of the zones of weakening is formed by a plurality of microperforations that are formed in the sheet material. To access a product, the product is pushed against the lidding in the zone of weakness with sufficient force to rupture the lidding. Since the majority of the surface area above each compartment is non-rupturable, the compartments are difficult to access by a child by either hand manipulation or biting.
Claims20
A child resistant package comprising:
- a tray having a plurality of spaced apart cavities formed therein, each of the cavities having at least one sidewall defining a compartment for receiving a product therein;
- and
- a polymeric sheet material overlying said tray such that a product disposed in each of the compartments is enclosed therein, wherein each region of the sheet material overlying an individual compartment includes a zone of weakening comprising a plurality of microperforations, and a puncture and/or tear resistant zone that is free of said microperforations, and wherein said zone of weakening is positioned adjacent to at least one sidewall of said individual compartment.
A method of making a child resistant package comprising the steps of
- providing a polymeric sheet material having discrete regions that each comprise a plurality of microperforations formed in the sheet material;
- positioning the sheet material over a tray having a plurality of cavities, wherein the sheet material is positioned such that each region of the sheet material overlying an individual compartment includes a zone of weakening defined by said plurality of microperforations, and a puncture and/or tear resistant zone that is free of said microperforations, and wherein said zone of weakening is positioned adjacent to at least one sidewall of a corresponding cavity;
- and
- attaching the sheet material to the tray.
Dependencies are inferred from the claim text.