The Coca-Cola Company

The Purdue Frederick Company

Ernst Vesely

Simon J Richter

Frank G Hohmann

A substantially cylindrical plastic parison is expanded within a blow mold against the internal walls thereof to form a plastic drinking vessel with a rim having substantially smooth inner and outer surfaces thereon. The inner surface is formed by a reciprocating cutter head assembly including an annular cutter blade with an outside diameter slightly less than the inside diameter of wall surfaces of the blow mold adjacent to a peripheral recess in the blow mold in which an external bead on the rim is formed. The cutter blade and cutter head assembly form a dome-shaped top in response to expansion of the parison. When the cutter blade is retracted axially from the blow mold the dome-shaped top is severed from the vessel. In an alternative embodiment the vessel and a partially severed dome-shaped top are removed as an integral unit from the blow mold and the dome-shaped top is then completely severed from the vessel utilizing a rotary cutter blade.

Method and apparatus for blow molding a plastic drinking vessel

A device which is adapted to receive a liquid having particles suspended therein includes a one-piece plastic container having an open top, a closed bottom, and an endless side wall extending between the open top and closed bottom to define with the bottom of the container a hollow interior thereof. A partition structure which is integral with the side wall of the container is situated between the open top and closed bottom thereof to define in the interior of the container upper and lower chambers separated from each other by the partition structure. This partition structure extends across the interior of the container and has therein a free edge defining with an inner surface of the side wall of the container an opening through which the above chambers communicate with each other. When a liquid having particles suspended therein is introduced into the container to an elevation higher than the partition structure, the particles will settle into the lower chamber while a clear liquid substantially free of these particles remains in the upper chamber and can be poured out of the container from the upper chamber thereof substantially free of the particles which settle in the lower chamber.

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Sussex, NJ, United States of America

Ernst Vesely