Patent ID: 8668110
Filing Date: 2014-03-11
Classification: F42B,F42D

Abstract:
1. A venting device comprising: a container comprising an opening; an inner containment layer laterally disposed around the container and comprising at least outer lip disposed at an end proximate the container opening; an outer containment layer laterally disposed on the inner containment layer but not disposed over the at least one outer lip; a metal clamp configured to cover the opening and comprising at least one end flange, the end flange comprising an expandable shape memory band wrapped around the end flange of the metal clamp, the end flange being moveable with the expandable shape memory band, wherein the expandable shape memory band comprises a shape memory polymer or shape memory polymer composite that diametrically expands in size at a predetermined critical temperature, wherein the expansion of the expandable shape memory band upon reaching the predetermined critical temperature outwardly moves the end flange of the metal clamp, which separates the inner surface of the end flange from the outer surface of the outer containment layer and decouples the recessed section of the end flange from the outer lip of the inner containment layer, thereby detaching the metal clamp to vent the container.