B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 1/02 (2006.01) B65D 1/40 (2006.01) B65D 23/00 (2006.01) B65D 41/10 (2006.01)
Patent
CA 2517870
A plastic bottle mouth has a finish generally symmetric about a vertical axis of the bottle, suitable to receive a metal crown cap. The finish has a top planar surface lying in a plane normal to the vertical axis. A downwardly curved portion extends outward from the planar ring and terminates at an outermost edge located at a radius R1 bottle axis. An undercutting surface begins adjacent to the outer edge and extends axially inwardly and downwardly as a concave partial toroid. The undercutting surface can be defined in substantial part by a locus of points generated by a radius R having its origin on a circle of radius R2 lying in a plane normal to the vertical axis, particularly where R « R2 < R1. The radius R defining the undercutting surface is generally less than about 7% of radius R1, and can be only about 4% of radius R1. The planar ring on the top surface of the finish can have a width that is greater than about 2% of radius R1.
Clutter Brad Matthew
Healan James C.
Ball Corporation
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
LandOfFree
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