Plastic container with champagne style base
AssigneeBall Corporation
InventorsErik Gatewood, Peter Crandall
Life of this patent
Estimating the term…
Abstract
A champagne type base for a molded polymeric container has an annular step immediately inside an annular contact ring. A push-up area is a central portion of the base immediately surrounding the container longitudinal axis. A transition region between the push-up area and the annular step provides for outstanding base stabilization. The transition region includes an upwardly arching surface extending between the annular step and the push-up area with a plurality of integrally molded, spaced apart, radially extending and downwardly projecting hollow ribs. Each of the ribs has a lower curved surface extending substantially continuously from the push-up area to the inner margin of the annular step.
Claims11
A molded polymeric container, including a body portion having a longitudinal axis, a sidewall and a champagne type base portion that is molded integrally with said sidewall, said champagne type base portion comprising:
- a lower end that defines an annular contact ring for supporting the container with respect to an underlying surface;
- an annular step situated immediately radially inward of the annular contact ring, the annular step having a substantially vertical outer wall and a substantially horizontal inner wall, the inner wall having an inner margin;
- a push-up area immediately surrounding the longitudinal axis;
- and
- a transition region interposed between the push-up area and the annular step, the transition region including an upwardly arching surface extending between the push-up area and the annular step, and a plurality of integrally molded, spaced apart, radially extending, and downwardly projecting ribs, each rib having a lower curved surface extending substantially continuously from the push-up area to the annular step.
A molded polymeric container, including a body portion having a longitudinal axis, a sidewall and a champagne type base portion that is molded integrally with said sidewall, said champagne type base portion comprising:
- a lower end that defines a horizontally planar annular contact ring for supporting the container with respect to an underlying surface;
- an annular step situated immediately radially inward of the annular contact ring, the annular step having a substantially vertical outer wall and a substantially horizontal inner wall, the inner wall having an inner margin;
- a push-up area immediately surrounding the longitudinal axis;
- and
- a transition region interposed between the push-up area and the annular step, the transition region being substantially devoid of any extreme angles and tapers, the transition region including an upwardly arching surface extending between the push-up area and the annular step, and a plurality of integrally molded, spaced apart, radially extending, and downwardly projecting ribs, each rib having a lower curved surface extending substantially continuously from the push-up area to the annular step.
Dependencies are inferred from the claim text.