Patent ID: 9731884
Date: 2017-08-15
CPC Classifications: B29C,B29K,B29L,B65B,B65D,B67C

Claim:
1. A method for hot-filling plastic bottles, each said plastic bottle having a longitudinal axis and including a neck portion, a body portion, and a base portion forming a standing support for the plastic bottle and having a bottom end thereof with a hinge, a recess or instep from the standing support to the hinge, a pressure panel portion outwardly inclined greater than about 10° relative to a plane perpendicular to the longitudinal axis and a centrally located push-up portion, the pressure panel portion and the push-up portion being adapted to be repositioned about the hinge, the method comprising: providing the plastic bottles for hot-filling; providing the hot-filled plastic bottles for capping; providing the plastic bottles for creating a vacuum in each of the hot-filled and capped plastic bottles by cooling; and providing the plastic bottles for repositioning the pressure panel portion and the push-up portion of each plastic bottle from a first position to a second position to reduce a portion of the vacuum.