Patent ID: 8910664
Filing Date: 2014-12-16
Classification: B65D,Y10T

Abstract:
1. A nonlinear air stop valve structure, with two narrower plastic inner membranes disposed in two wider plastic outer membranes, and assembled in an air sealing body, comprising: a plurality of arcs, formed and disposed on both sides of the inner membranes by hot sealing, and comprising a plurality of left arcs and a plurality of right arcs disposed on the both sides of the inner membranes, the left arcs and right arcs being arranged asymmetrically, and each of the left arcs and each of the right arcs cooperatively forming a breach at an end-point of the left arc and the right arc, the breach disposed adjacent to a concave arc surface of either the left or the right arc opposite to the breach, and the plurality of left and right arcs being arranged on left and right sides between a hot sealing line to an air outlet to form a nonlinear air stop valve structure; such that after the sealing body is inflated through the air stop valve structure, air enters from an air inlet at a top of the inner membranes and flows along an upper arc of each of the left and right arcs to a lower arc, and the air is blocked by the concave arc surface and switched to pass through the breach, and guided from either the left or right arc which is opposite to the concave arc surface to the lower arc of either the left or right arc to flow into the breach, so as to constitute an airflow passing through the right arc, the breach, the left arc and the breach in turn from right to left or from left to right into the air outlet formed at the bottom of the inner membranes and enter into the scaling body.