Remote relief-vent device

Claim 1

A relief-vent device adapted to vent discharged gas released from a remote high-pressure-relief valve associated with a storage tank holding liquified petroleum gas, said relief-vent device comprising: a vent-body member having an annular and substantially flat-surfaced cavity formed therein; an integrally formed depending nipple member, wherein said nipple member includes external threads whereby said relief vent can be secured to a fixed structure in a vertical position, or not exceeding a 45° angle from said vertical position, in order to allow the free discharge of gas; a central-discharge passage formed in said vent body and nipple member, the discharge end thereof terminating in said cavity; a flexible shield adapted to be movably secured in said cavity and disposed over said central passage, whereby said passage is covered when gas is not being released from said relief valve; means for securing said shield along a given edge thereof, in order to allow said shield to flex to an open discharge position as gas is released from said relief valve; a biasing means formed in said flexible shield, wherein said biasing means comprises a bend formed transversely in said shield and adjacent said shield-securing means; a first sealing means interposed between said flat surface of said cavity and said flexible shield; and wherein said vent body includes: a substantially flat bottom surface; a second sealing means formed in said flat bottom surface, whereby said second sealing means is interposed between said vent body and said fixed structure; and means for securing said vent body to said fixed structure.