Pressure sensitive explosion barrier
AssigneeThe United States of America as represented by the Secretary of the Interior
InventorsIsrael Liebman, John Corry, J. Kenneth Richmond
Life of this patent
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Abstract
A pressure sensitive exposion barrier which is activated by a static pressure rise. A liquid tight housing with a latched door contains the explosive suppression agent, usually water, until activation takes place. Upper hinges on the door allow it to be pivoted outwardly and its agent released. Normally a latch keeps the door locked until the pressure rise from the explosion causes a connected bellows assembly to be depressed. Once depressed, the latch is released and the door is forced outwardly by a biasing member to release the agent before the explosion arrives.
Claims9
An explosion suppression device comprising:
- a closed container having a normally locked and openedly biased door for retaining an explosion suppression agent, said container having an ambient pressure responsive plate;
- and
- mechanical means for unlocking said door in response to a static pressure rise of as little as one pound per square inch increase in ambient gaseous pressure on said plate, whereby the suppression agent is released from the container.
An explosion suppression device comprising:
- an explosion suppressant holding device pivotally mounted on one side;
- a pressure sensitive diaphragm having an actuating rod attached thereto;
- and a linking mechanism attached to said rod to normally maintain the holding device in a generally horizontal position until a predetermined pressure change causes the diaphragm to move its actuating rod and release the contents of the pivotally mounted explosion supressant holding device.
Dependencies are inferred from the claim text.