Patent ID: 9221565
Filing Date: 2015-12-29
Classification: B29C,B29L,B65B,B65D

Abstract:
1. A method of sealing a package containing a food product, the method comprising: advancing the package in a linear direction on a conveyor surface toward a sealing member; applying a lid to a non-planar flange surrounding a periphery of the package; supporting at least a portion of the non-planar flange; and progressively sealing the lid to the supported portion of the non-planar flange by applying pressure at one or more tangent points against the lid and the flange using a sealing member having a pressure applying surface that rotates about an axis of rotation and radially varies relative to the axis of rotation, the axis of rotation of the sealing member being perpendicular to the direction of linear advancement of the package on the conveyor surface toward the sealing member.