Pressure relief cartridge
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United States of America Patent
Stats
-
Jun 13, 1989
Grant Date -
N/A
app pub date -
Mar 25, 1988
filing date -
Mar 25, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pressure relief cartridge (10) for venting fluid to the atmosphere from a low pressure inflatable member including a housing (20) mounted in fluid-tight relation to the inflatable member, and having a base (21) and a projecting annular sidewall (22), an aperture (21') in the base of the housing communicates with the interior of the inflatable member, a poppet element (40) positioned within said annular sidewall of the housing has a plate (41) at an axial extremity thereof, a sealing element (43) on the plate is adapted to engage the base peripherally surrounding the aperture, an orifice (48) formed between the plate and the annular sidewall, a skirt (42) on the poppet projecting from the plate and interiorly communicating with the atmosphere, a slot (54) in the skirt, a retainer (60) positioned in the annular sidewall of the housing, and a biasing member (70) interposed between the retainer and the poppet element normally urging the sealing element to seat on the base and permitting the sealing element to unseat and vent fluid from the inflatable member through the orifice and the slot to the atmosphere when the fluid in the inflatable member exceeds a predetermined pressure.
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