Patent ID: 6045001
Filing Date: 2000-04-04
Classification: B29C,B29K

Abstract:
A plastic container comprising:a bottom of the container with a generally inwardly curved shape to define a generally hemispherical dome shape wherein a preliminary bottom is formed by engagement of a bottom portion of a preform with a truncated cone in a first blow-molding operation, said preliminary bottom being separated from the truncated cone for developing into the generally hemispherical dome shape of the container bottom;the truncated cone having a substantially planar lateral surface and a disk shaped top; the generally hemispherical dome shape consisting essentially of a disk shaped dome center portion, proceeding radially outwardly through annulus shapes successively defining in cross section:a first outward curved segment, inclined with respect to an axis of the container,an inward curved segment, anda second outward curved segment leading to a side wall of the container; and,wherein the dome center and each of the segments join smoothly to at least one adjacent segment whereby the container is viewable through the bottom substantially without obstruction by shadow formation.