Blow molded aseptic bottle and method
AssigneeGraham Engineering Corporation
InventorsDennis L. Dundas, Eugene L. Moore
Life of this patent
Estimating the term…
Abstract
A parison is blow molded to form a sealed aseptic bottle for subsequent opening and filling. The pressure of the gas in the interior of the bottle when sealed is sub-atmospheric to prevent distortion of the bottle.
Claims40
An intermediate container including a body blow molded from a plastic resin having a set temperature, the body having a hollow, sealed interior, the skin of the body having a temperature below the set temperature and being hard, an interior portion of the body having a temperature above the set temperature and being soft, and a gas confined within the interior of the sealed body at a subatmospheric pressure.
An intermediate container including a hollow sealed and imperforate body blow molded from a plastic resin and having a hard skin and a pressure deformable wall, the body completely surrounding and defining the interior of the container and a subatmospheric gas confined within the interior of the body.
A sealed container comprising a blow molded hollow and imperforate plastic body sealed closed during molding to define a hollow interior, the interior of the body being sterile, a sterile gas confined within the interior volume of the body during molding, said gas being at ambient temperature and having a pressure substantially equal to atmospheric pressure, the plastic in the body being fully stabilized and at ambient temperature, the body including an unbowed thin wall pressure deformable by small differences between ambient pressure outside of the thin wall and the pressure of the gas within the interior volume of the body on the inside side of the thin wall, and a thick wall not deformable by small differences between ambient pressure outside the thick wall and the pressure of the gas within the interior of the body on the inside of the thick wall.
A container comprising a hollow imperforate body blow molded from plastic resin and conforming to the shape of a mold, the body including a thin unbowed wall deformable by slight pressure differentials on opposite sides of the wall, the interior of the body being sterile, and a sterile gas sealed within the interior of the body while within the mold, the plastic body being at ambient temperature and stable, the gas being at ambient temperature and having a pressure substantially equal to ambient pressure.
Dependencies are inferred from the claim text.