Pressure and temperature relief valve with thermal trigger

Details Pressure and temperature relief valve with thermal trigger Pressure and temperature relief valve with thermal trigger

1991-05-30

1992-11-10

Tapolcai, William E.

Automatic temperature and humidity regulation

Thermostatic

With pressure control

137 681, 137 72, F16K 1740

Patent

active

051617382

ABSTRACT:
A thermally activated relief valve is used with a compressed gas storage cylinder. A valve body has a passage for communication with the interior of the cylinder. A metal diaphragm sealing the passage has a first side exposed to the interior of the cylinder and a second side opposite the first side. A hollow bayonet is mounted to the valve body on the second side of the diaphragm. A spring is used to bias the bayonet toward the diaphragm. A thermal trigger is operably coupled to the bayonet for holding the bayonet in spaced relation to the diaphragm until the thermal trigger reaches a predetermined temperature threshold. Upon reaching the predetermined temperature threshold, the thermal trigger releases the bayonet so that the bayonet moves toward the diaphragm under force exerted by the spring and so that the bayonet pierces the diaphragm.

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