Patent ID: 8602452
Filing Date: 2013-12-10
Classification: B60R

Abstract:
1. A gas source comprising: a housing including a cavity formed therein; a connecting passage configured to enable fluid communication between the cavity and an exterior of the connecting passage, the connecting passage including a first end and a second end, the second end having a cross-sectional area less than a cross-sectional area of the first end; a seal configured so as to prevent fluid communication between the connecting passage second end and the exterior of the connecting passage prior to activation of the gas source, and means coupled to the housing for generating a pressure wave transmissible via a medium positioned in the cavity to the connecting passage first end, then from the first end to the second end, the gas source further comprising an end closure coupled to the housing, wherein the connecting passage is configured to enable fluid communication between the housing cavity and a gas-receiving passage formed in the end closure, and wherein the seal is configured so as to prevent fluid communication between the connecting passage second end and the gas-receiving passage prior to activation of the gas source, and wherein a cross-sectional area of the gas receiving passage is greater than the cross-sectional area of the connecting passage at the second end.