Fluid handling – Destructible or deformable element controlled – Destructible element
Patent
1995-09-05
1997-01-14
Fox, John C.
Fluid handling
Destructible or deformable element controlled
Destructible element
137 683, 137 812, F16K 1736
Patent
active
055929621
ABSTRACT:
A compressed gas release system including a compressed gas source, the gas within the source is released as a response to a combination of a predetermined threshold external pressure and a defined chemical environment. In particular, the compressed gas release system includes a housing defining a space; a material being in the space and being solid in a first chemical environment and the material dissolving in a second chemical environment; a biasing member being activated when pressed against the material when the material is solid and, the biasing member is relaxed when the material dissolves; a firing pin including a gas releasing end and, the firing pin being fired when the biasing member is relaxed; a source of compressed gas, the source of compressed gas releasing a gas when the firing pin is fired; a diaphragm having an internal side and an external side, the diaphragm being mounted onto the housing, the internal side of the diaphragm facing the space of the housing, thereby sealing the first chemical environment in the space; a diaphragm puncturing device mounted onto the housing; a pressure responding mechanism, the pressure responding mechanism keeping the internal side of the diaphragm away from the diaphragm puncturing device when the external pressure is below the threshold and, the diaphragm being punctured by the diaphragm puncturing device when the external pressure is above the threshold.
REFERENCES:
patent: 2964050 (1960-12-01), Novok
patent: 3266668 (1966-08-01), Davis
Fox John C.
Friedman Mark M.
G.O.T. Guide-On Technologies Ltd.
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