US 12,191,687 B2
Battery operated one-shot device mitigating the effects of lithium battery passivation
Francis Mattia, Elkins Park, PA (US); and Richard Frantz, Hatboro, PA (US)
Filed by Action Manufacturing Company, Bristol, PA (US)
Filed on Mar. 9, 2021, as Appl. No. 17/196,582.
Claims priority of provisional application 62/986,977, filed on Mar. 9, 2020.
Prior Publication US 2021/0281104 A1, Sep. 9, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H02J 7/04 (2006.01); H02J 7/00 (2006.01); H02J 9/04 (2006.01)
CPC H02J 7/0031 (2013.01) [H02J 9/04 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A one-shot energetic firing device to detonate when appropriate to initiate an action, wherein the device is destroyed upon detonation, the device comprising
a power source to provide an operating voltage to the device;
a logic subsystem to control operation of the device, wherein the logic subsystem is connected to the power source and operated in an idle state when the device is not active, wherein the logic subsystem draws a small amount of current from the power source when operating in the idle state to reduce growth of passivation layer on the power source;
an energetic fire circuit configured to detonate when charged by the operating voltage of the power source to at least a defined level required for detonation and provided with a fire signal from the logic subsystem; and
a power switch to throttle application of the operating voltage from the power source to the energetic fire circuit when the device is not active.