Aseptic Transfer Bead For Plastic Containers
A plastic container includes a neck with an opening to an interior of the container, where the neck opening having a first diameter and a second diameter of different lengths. A shoulder portion surrounds the neck of the plastic container. A transfer bead is located on the neck above the shoulder portion where the first diameter of the neck opening is above the transfer bead and the second diameter is below the transfer bead. The transfer bead is advantageously shaped and sized so as to facilitate application and removal of a sterilization solution during the aseptic packaging process.
1 . A plastic container, comprising:
a main body portion; and
a neck portion having a sidewall that defines an inner surface and an outer surface, said neck portion having a central longitudinal axis, said neck portion further having a transfer bead defined therein, said transfer bead being defined by:
a first upper annular portion of said sidewall, said first upper annular portion having a first outer surface that when viewed in longitudinal cross-section defines a first angle with respect to a horizontal plane that is perpendicular to said central longitudinal axis;
a second lower annular portion of said sidewall, said second lower annular portion of said sidewall having a second outer surface that when viewed in longitudinal cross-section defines a second angle with respect to the horizontal plane; and
an outer annular portion of said sidewall that is oriented so as to be substantially parallel to said central longitudinal axis, said outer annular portion of said sidewall being connected to said first upper annular portion of said sidewall at an upper end thereof and to said second lower annular portion of said sidewall at a lower end thereof, said outer annular portion of said sidewall extending for a first height; and wherein
said first angle is greater than said second angle.
2 . A plastic container according to claim 1 , wherein said first height is at least 0.070 inches.
3 . A plastic container according to claim 2 , wherein said first angle is at least 12°.
4 . A plastic container according to claim 2 , wherein said second angle is at least 5°.
5 . A plastic container according to claim 1 , wherein said first angle is at least 12°.
6 . A plastic container according to claim 1 , wherein said second angle is at least 5°.
7 . A plastic container according to claim 1 , wherein said neck portion has a first diameter above said transfer bead and a second diameter that is different from said first diameter below said transfer bead.
8 . A plastic container according to claim 7 , wherein said first diameter is greater than said second diameter.
9 . A plastic container according to claim 1 , wherein said neck portion has a substantially constant wall thickness.
10 . A plastic container according to claim 9 , wherein said substantially constant wall thickness is within a range of about 0.025 inches to about 0.040 inches.
11 . A plastic container, comprising:
a main body portion; and
a neck portion having a sidewall that defines an inner surface and an outer surface, said neck portion having a central longitudinal axis, said neck portion further having a transfer bead defined therein, said transfer bead being defined by:
a first upper annular portion of said sidewall, said first upper annular portion having a first outer surface that when viewed in longitudinal cross-section defines a first angle with respect to a horizontal plane that is perpendicular to said central longitudinal axis;
a second lower annular portion of said sidewall, said second lower annular portion of said sidewall having a second outer surface that when viewed in longitudinal cross-section defines a second angle with respect to the horizontal plane; and
an outer annular portion of said sidewall that is oriented so as to be substantially parallel to said central longitudinal axis, said outer annular portion of said sidewall being connected to said first upper annular portion of said sidewall at an upper end thereof and to said second lower annular portion of said sidewall at a lower end thereof, said outer annular portion of said sidewall extending for a first height; and wherein
said neck portion further has a first diameter above said transfer bead and a second diameter that is different from said first diameter below said transfer bead.
12 . A plastic container according to claim 11 , wherein said first diameter is greater than said second diameter.
13 . A plastic container according to claim 11 , wherein said first height is at least 0.070 inches.
14 . A plastic container according to claim 11 , wherein said first angle is greater than said second angle.
15 . A plastic container according to claim 11 , wherein said first angle is at least 12°.
16 . A plastic container according to claim 11 , wherein said second angle is at least 5°.
17 . A method of aseptically packaging a beverage, comprising steps of:
forming a container that has a neck portion having a sidewall that defines an inner surface and an outer surface, said neck portion having a central longitudinal axis, said neck portion further having a transfer bead defined therein, said transfer bead being defined by:
a first upper annular portion of said sidewall, said first upper annular portion having a first outer surface that when viewed in longitudinal cross-section defines a first angle with respect to a horizontal plane that is perpendicular to said central longitudinal axis;
a second lower annular portion of said sidewall, said second lower annular portion of said sidewall having a second outer surface that when viewed in longitudinal cross-section defines a second angle with respect to the horizontal plane; and
an outer annular portion of said sidewall that is oriented so as to be substantially parallel to said central longitudinal axis, said outer annular portion of said sidewall being connected to said first upper annular portion of said sidewall at an upper end thereof and to said second lower annular portion of said sidewall at a lower end thereof, said outer annular portion of said sidewall extending for a first height; and wherein
said first angle is greater than said second angle;
applying a sterilization fluid to an interior of the container;
rinsing the container; and
packaging a beverage within the aseptic container.