US 2006/0169319 A1 · Pressure relief device

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.

Claims2

Dependent claims

A pressure relief device, comprising:

a sealing member having a domed shape including a concave and a convex side;
a non-symmetrical low-pressure support member configured to provide support along the concave side of the sealing member when the sealing member is subject to a certain pressure differential, the low pressure support member including an annular flange and at least one supporting projection;
a cutting element configured to puncture the sealing member when the sealing member is subject to a predetermined first pressure differential that causes collapse of the low pressure support member;
an inlet safety head member positioned on an inlet side of the low pressure support member;
an outlet safety head member positioned on an outlet side of the sealing member;
and
wherein the inlet and outlet safety head members sealingly engage the low pressure support member and the sealing member therebetween.

4 more elements

Dependencies are inferred from the claim text.

Pressure relief device

Life of this patent

Pressure relief device

Life of this patent

Abstract

Claims2