CPC F16K 17/025 (2013.01) [F17C 13/04 (2013.01); F17C 2205/0332 (2013.01); F17C 2221/033 (2013.01); F17C 2260/042 (2013.01); F17C 2270/0168 (2013.01)] | 23 Claims |
1. A pressure relief device comprising:
a body;
a vent passage disposed through the body and at least partially enclosed by a vent passage wall, the vent passage having a first end configured to be placed in fluid communication with an internal volume of a tank and a second end configured to be placed in fluid communication with the atmosphere;
a plug configured to slide along a longitudinal axis of the plug in the vent passage, the plug comprising a seal end forming a seal with the vent passage wall and a control end spaced apart from the seal end; and
a latch comprising an elongate body extending from a proximal end to a distal end, the latch being rotatably mounted to the body at a location that defines an axis, and having a blocking portion projecting laterally from the elongate body between the proximal end and the distal end, the latch being configured to move from a first position to a second position when rotated about the axis, causing the blocking portion to be out of contact with the control end of the plug to allow movement of the plug in the vent passage and allowing gas in the tank to flow through the pressure relief device to the second end of the vent passage,
wherein the latch is configured to rotatably move from the first position to the second position in response to pressurized gas from a secondary source entering a trigger actuation passage.
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