Amcor Limited

Anna C Wilcox

Richard J Steih

Walter J Strasser

Rohit V Joshi

John Brendan Simon

Liye Zhang

Juan Sancho

A one-piece plastic hot-fill container may employ a shoulder portion, a base portion and a sidewall portion, which may be integrally formed with and extend from the shoulder portion to the base portion. The sidewall portion may generally be in an hourglass shape and employ a plurality of arched contour ribs and a plurality of arched contour lands that may alternate along a longitudinal length of the sidewall portion. An outside diameter of an upper body portion is greater than an outside diameter of a lower body portion, which may form a hand grip area. The arched contour ribs may further employ an upper flat wall, a lower flat wall, and an inner curved wall joining the upper and lower walls, which together may form an angle of about 60 degrees, and move in response to hot-fill product contraction within the container or top load forces.

Hot-fill container

A container structure for a hot fill liquid may employ an upper portion defining a mouth, a shoulder portion integrally formed with and extending downward from the upper portion, a bottom portion defining a base, and a body and sidewall extending between and joining the shoulder and bottom portions. The sidewall may employ a pair of opposing columns oriented diagonally relative to the base and concave inward relative to a container central vertical axis before the container is filled. The columns become concave inward to a lesser extent when the bottle is under an interior vacuum. The sidewall may also employ a pair of opposing, compound angle vacuum panels oriented diagonally relative to the base. A vacuum initiator groove is formed in each of the vacuum panels to initiate panel movement during liquid content cooling. The vacuum initiator groove is generally coincident with a vacuum panel longitudinal centerline.

Plastic container having vacuum panels

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New York, NY, United States of America

Anna C Wilcox