Pressure relief device

Fluid handling – Destructible or deformable element controlled – Destructible element

Reexamination Certificate

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Details

C137S068220, C137S068240, C137S068250, C220S089300

Reexamination Certificate

active

07011104

ABSTRACT:
A pressure relief device is provided. The pressure relief device includes a sealing member and a low-pressure support member that is adapted to provide support to the sealing member when the sealing member is subject to a certain pressure differential. The low pressure support member includes an annular flange and at least one supporting projection. A cutting element is adapted to puncture the sealing member when the sealing member is subject to a predetermined pressure differential. The pressure relief device may further include a high pressure support member and safety heads forming a pre-torqued assembly. The supporting projection may optionally include an area of weakness either wholly within or on the periphery thereof.

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patent: 6321771 (2001-11-01), Brazier et al.
patent: 6945420 (2005-09-01), Krebill et al.
patent: 2005/0103785 (2005-05-01), Eijkelenberg et al.
patent: 2005/0103786 (2005-05-01), Eijkelenberg et al.

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