초록

This invention pertains to a reclosable package having a body member, a base, hermetic seal between the body member and base and snap-locking projections formed in the side walls of the body member and base.

대표청구항 ▼

A method of forming a vacuumized, hermetically sealed package which is characterized by a predetermined quantity of a product arrange dint eh from of an upright mass on a raised panel portion of a semi-rigid base, which base has peripherally extending flange margins sealed to corresponding flange ma

A method of forming a vacuumized, hermetically sealed package which is characterized by a predetermined quantity of a product arrange dint eh from of an upright mass on a raised panel portion of a semi-rigid base, which base has peripherally extending flange margins sealed to corresponding flange margins of a body member of a semi-rigid preformed plastic; said body member having a top panel for engaging the upper end of said product and depending side walls for engaging the side walls of said product, and the bottom edges of said body side walls being in telescoping relationship with portions of said base at the peripheral edges of said raised panel portion; said method comprising supporting said preformed body member in inverted position with the flanged margins thereof on the edge portions of a rigid upwardly opening hollow form, placing a sufficient quantity of said product in said body member to substantially fill said body member when the package is completed, positioning said base on the mouth of said body member with said product engaging panel disposed so as to telescope into said body member and engage with said product and with the flanged margins of said base overlying the corresponding margins of said body member, vacuumizing the assembly and hermetically sealing the package, wherein the package further contains a locking means contained in the base and body member side walls for snap locking the base to the body member, said locking means provides for friction interference fit, and postforming said locking means at temperatures below the melting point range but above about the glass transition temperature.