Pressure relief device

Fluid handling – Destructible or deformable element controlled – Heat destructible or fusible

Reexamination Certificate

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Details

C137S079000, C220S089400

Reexamination Certificate

active

06851445

ABSTRACT:
A pressure relief device having a housing including an inlet, an outlet, and an inner wall defining a bore connecting the inlet and the outlet. The inlet is in communication with a fluid under pressure in a pressure vessel. The bore includes an inlet portion extending from the inlet toward the outlet, and an outlet portion extending from the outlet toward the inlet. The bore also includes a tapered portion connecting the inlet portion and the outlet portion. The inlet portion has a diameter which is less than the outlet portion's diameter. A plug is located in the bore and movable from a closed position, in which flow of fluid through the bore is blocked, to an open position, in which flow of the fluid through the bore is permitted in response to a pressure differential between the inlet and the outlet.

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International Search Report (5 pages), PCT/CA03/00598, dated Aug. 1, 2003.

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