Pressure relief cartridge

Details Pressure relief cartridge Pressure relief cartridge

1988-03-25

1989-06-13

Cohan, Alan

Fluid handling

Inflatable article

With pressure-responsive pressure-control means

13754319, 1374545, F16K 1704

Patent

active

048383007

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.

REFERENCES:
patent: 1882215 (1932-10-01), Ewald
patent: 2876982 (1959-03-01), Snider
patent: 3057115 (1982-10-01), Bilanin
patent: 3086549 (1963-04-01), Fino
patent: 3511475 (1970-05-01), Pfau
patent: 4015624 (1977-05-01), Wanstreet

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