Patent ID: 9539452
Date: 2017-01-10
CPC Classifications: A62C

Claim:
1. A fire extinguisher actuator assembly for a fire extinguisher, the fire extinguisher comprising a fire extinguisher reservoir and a fire extinguisher outlet burst disc that forms a discharge barrier between the fire extinguisher reservoir and a discharge head to retain a pressurized fire extinguishing agent at an internal fire extinguisher pressure within the fire extinguisher reservoir, the fire extinguisher actuator assembly comprising: a cutter detained within the fire extinguisher proximate the fire extinguisher outlet burst disc; an interior container within the fire extinguisher reservoir, the interior container having a container pressure and sealed with a container burst disc, wherein the container pressure is less than the internal fire extinguisher pressure prior to piercing of the container burst disc; and an activation device comprising a piercing member, the activation device operable to pierce the container burst disc and diffuse the container pressure to create a pressure differential relative to the internal fire extinguisher pressure at the cutter, thereby driving the cutter through the fire extinguisher outlet burst disc to release the pressurized fire extinguishing agent through the discharge head.